ET-7000/PET-7000 DIO Series User Manual - ICP DAS

Service and usage information for 

Written by Liam Lin 

Edited by Anna Huang 

ET-7000/PET-7000 DIO Series 

User Manual 

Version 1.0.1 beta2, April 2010 

ET-7042 ET-7044 ET-7050 ET-7051 ET-7052 

ET-7053 ET-7060 ET-7065 ET-7066 ET-7067 

PET-7044 PET-7051 PET-7052 

PET-7060 

PET-7065 PET-7067

Warranty 

All products manufactured by ICP DAS are under warranty regarding defective 

materials for a period of one year, beginning from the date of delivery to the original 

purchaser. 

Warning 

ICP DAS assumes no liability for any damage resulting from the use of this 

product.ICP DAS reserves the right to change this manual at any time without notice. 

The information furnished by ICP DAS is believed to be accurate and reliable. 

However, no responsibility is assumed by ICP DAS for its use, not for any 

infringements of patents or other rights of third parties resulting from its use. 

Copyright 

Copyright @ 2009 by ICP DAS Co., Ltd. All rights are reserved. 

Trademark 

The names used for identification only may be registered trademarks of their 

respective companies. 

Contact US 

If you have any problem, please feel free to contact us. 

You can count on us for quick response. 

Email: service@icpdas.com 

ET-7000/PET-7000 DIO Series User Manual, version 1.0.1 beta2 Page: 2 

Copyright © 2009 ICP DAS Co., Ltd. All Rights Reserved. E-mail: service@icpdas.com

Table of Contents 

1. Introduction ....................................................................................... 7 

1.1. Product Information ...................................................................................... 8 

1.1.1. ET-7000/PET-7000 AIO Series Release Module ................................ 8 

1.1.2. ET-7000/PET-7000 Module Naming Convention ................................ 9 

1.1.3. ET-7000/PET-7000 Comparison ....................................................... 10 

1.2. Features ..................................................................................................... 12 

1.3. Specification ............................................................................................... 15 

1.3.1. System Specification ........................................................................ 15 

1.3.2. I/O Specification ............................................................................... 17 

1.3.2.1. ET-7042 .................................................................................. 17 

1.3.2.2. ET-7044/PET-7044 ................................................................. 19 








1.3.2.10. ET-7067/PET-7067 ............................................................... 35 

1.4. Wiring Connection ...................................................................................... 37 

1.4.1. ET-7042/ET-7044/ET-7050/PET-7044 .............................................. 37 

1.4.2. ET-7044/ET-7050/ET-7051/PET-7044/PET-7051 ............................. 37 

1.4.3. ET-7052/PET-7052 ........................................................................... 38 

1.4.4. ET-7053 ............................................................................................ 39 



1.4.7. ET-7065/ET-7066/PET-7065 ............................................................ 40 




1.5. Overview .................................................................................................... 42 

1.5.1. Front Panel ....................................................................................... 42 

1.5.2. Back Panel ....................................................................................... 45 

1.6. Dimensions ................................................................................................. 47 

1.7. Companion CD ........................................................................................... 48 

2. Getting Started ................................................................................ 49 

2.1. Mounting the Hardware .............................................................................. 49 

2.2. Configuring the Boot Mode ......................................................................... 51 

2.3. Connecting to Network, PC and Power ...................................................... 52 

2.4. Installing the MiniOS7 Utility ....................................................................... 53 

2.5. Using MiniOS7 Utility to Assign a new IP ................................................... 54 

2.6. Enabling Adobe Flash Player in Browser .................................................... 58 

3. Web Applications ............................................................................ 60 

3.1. Overview .................................................................................................... 63 

3.2. Configuration .............................................................................................. 65 

3.2.1. Network Settings .............................................................................. 66 

3.2.1.1. Configure the Network Settings .............................................. 67 

3.2.1.2. Check the software information .............................................. 69 

3.2.2. Basic Settings ................................................................................... 70 

3.2.2.1. Configure the Module Information .......................................... 71 

3.2.2.2. Configure the Web site Information ........................................ 72 

3.2.2.3. Reset All Settings to Default ................................................... 75 

3.2.3. Module I/O Settings .......................................................................... 79 

3.3. Authentication ............................................................................................. 80 

3.3.1. Account Management ....................................................................... 81 

3.3.1.1. Configure the user accounts .................................................. 82 

3.3.1.2. Load the factory default user accounts................................... 83 

3.3.2. Accessible IP Settings ...................................................................... 84 



3.3.2.1. Configuring IP filter ................................................................. 85 

3.4. Web HMI .................................................................................................... 87 

3.4.1. Web HMI .......................................................................................... 88 

3.4.2. Web Edit ........................................................................................... 89 

3.5. Pair Connection .......................................................................................... 97 

3.6. More Information ........................................................................................ 98 

4. Modbus Applications ...................................................................... 99 

4.1. What is Modbus TCP/IP? ......................................................................... 100 

4.2. Modbus Message Structure ...................................................................... 101 

4.2.1. Address .......................................................................................... 102 

4.2.2. Function Codes .............................................................................. 103 

4.2.3. Data Field ....................................................................................... 103 

4.2.4. Error Check .................................................................................... 103 

4.3. Modbus Register Map .............................................................................. 104 

4.3.1. Common Function .......................................................................... 104 

4.3.2. Particular Function ......................................................................... 106 

4.3.2.1. ET-7042 I/O Address Mapping ............................................. 107 

4.3.2.2. ET-7044/PET-7044 I/O Address Mapping ............................ 109 

4.3.2.3. ET-7050 I/O and Counter Address Mapping .......................... 111 

4.3.2.4. ET-7051/PET-7051 I/O and Counter Address Mapping ......... 115 

4.3.2.5. ET-7052/PET-7052 I/O and Counter Address Mapping ......... 119 

4.3.2.6. ET-7053 I/O and Counter Address Mapping ......................... 123 

4.3.2.7. ET-7060/PET-7060 I/O and Counter Address Mapping ........ 127 

4.3.2.8. ET-7065/PET-7065 I/O and Counter Address Mapping ........ 131 

4.3.2.9. ET-7066/PET-7066 I/O Address Mapping ............................ 135 

4.3.2.10. ET-7067/PET-7067 I/O Address Mapping .......................... 137 

5. MiniOS7 Utility Tool ....................................................................... 139 

5.1. Establishing a Connection ........................................................................ 139 

5.2. Exchanging the Protocol (TCP/IP to UDP) ............................................... 142 



5.3. Updating the ET-7000/PET-7000 OS........................................................ 144 

5.4. Uploading the ET-7000/PET-7000 Firmware ............................................ 149 

6. External Tools and Tasks .............................................................. 154 

6.1. LabVIEW .................................................................................................. 154 

6.2. OPC Server .............................................................................................. 155 

6.3. SCADA ..................................................................................................... 156 

6.3.1. InduSoft .......................................................................................... 157 

6.3.2. Citect .............................................................................................. 158 

6.3.3. iFix .................................................................................................. 159 

Appendix A. Node Information Area ................................................ 160 

Appendix B. Modbus Application Notes .......................................... 161 

B.1. Dual Watchdog ......................................................................................... 161 

B.2. Power ON Value ....................................................................................... 162 

B.3. Safe Value ................................................................................................ 163 

B.4. AI High/Low Alarm .................................................................................... 164 

B.5. AI High/Low Latch .................................................................................... 169 

Appendix C. Troubleshooting .......................................................... 173 



1. Introduction 

The ET-7000/PET-7000, a web-based Ethernet I/O module, features a built-in web 

server, which allows configuration, I/O monitoring and I/O control by simply using a 

regular web browser. Besides, with the web HMI function, no more programming or 

HTML skills are needed; creating dynamic and attractive web pages for I/O monitoring 

and I/O control would be fun to engineers ever after. The ET-7000/PET-7000 offers 

easily and safely access for users from anytime and anywhere! In addition, 

ET-7000/PET-7000 also supports Modbus/TCP protocol that makes perfect 

integration to SCADA software. 



1.1. Product Information 

1.1.1. ET-7000/PET-7000 AIO Series Release Module 

Either ET-7000 or PET-7000 has released three different types of analog series 

modules, which provides a variety of analog module choice, listed in the following 

table. 

Type Model Description 

DC Digital Output 

(Open Collector) 

DC Digital Input 

DC Digital Input 

and Output 

Power Relay 

Output 

Photomos Relay 

Output 

ET-7042 

ET-7051/ 










16-channel Sink Type Open Collector Isolated 

DO Module 

16-channel Isolated DI Module with 32-bit 

Counters 


Counters 

8-channel Isolated Sink Type Open Collector 

Output 


Counters 

6-channel Isolated Sink Type Open Collector 

Output 


Counters 

8-channel Isolated Source Type Open 

Collector Output 


Counters 

6-channel Power Relay Output 

6-channel Isolation DI module 

ET-7067 8-channel Power Relay Output 



6-channel PhotoMos Relay Output Module 


Counters 

ET-7066 8-channel PhotoMos Relay Output Module 



1.1.2. ET-7000/PET-7000 Module Naming Convention 

As you examine this manual, you‘ll notice there are many different products available. 

Sometimes it is difficult to remember the specifications for any given product. However, 

if you take a few minutes to understand the module naming conventions, it may save 

you some time and confusion. The figure below shows how the module naming 

conventions work for each ET-7000/PET-7000 product. 

ET 

PET 

-7 X Y Z 

Z: Extension function code 

Y: Function code 

X: Number of the variance 

7: Seventh Generation 

ET: Ethernet communication interface without PoE 

PET: Ethernet communication interface with PoE 

X Y Z 

Number of variance 1. AI module 4. Transmitter 

5. RTD 

6. Strain Gauge 

7. Analog Input 

8. Thermocouple 

2. AO module 1. Voltage output 

3. Reserved 

2. Current output 

4. DIO module Number of variance 

5. DIO module Number of variance 

6. DIO module with relay Number of variance 

7. Multi-function 1. General purpose 

8. Counter/Frequency Number of variance 

9. Motion N: Number of axes 



1.1.3. ET-7000/PET-7000 Comparison 

The features of the PET-7000 differ from the ET-7000 

Power over Ethernet + ET-7000 = PET-7000 

PET-7000 features ―PoE‖ and many other advantages in ET-7000. Now, not only data 

but power is carried through an Ethernet cable. This feature makes installation of 

PET-7000 a piece of cake. Imagine that no more unnecessary wires, only an Ethernet 

cable takes care of everything in the field. 

PET-7000 also features a built-in web server and the web HMI function. A built-in web 

server allows basic setting configuration, I/O monitoring and I/O control by simply 

using a regular web browser. Remote control is as easy as you surf the internet. 

As to the web HMI function, no programming or HTML skills are required; creating 

dynamic and attractive web pages for I/O monitoring and I/O control would be fun for 

engineers ever after. 

PET-7000 also supports Modbus/TCP protocol that makes perfect integration for 

PET-7000 to SCADA software. 

Industrial PoE Solution 

When using PoE devices like PET-7000, you can choose ICP DAS ―PoE‖ 

switch —‖NS-205PSE‖ as the power source, NS-205PSE automatically detects the 

connected devices whether they are PoE devices or not. This mechanism ensures 

NS-205PSE to work with both PoE and non-PoE devices coordinately at the same 

time. 

Being as a power source for PoE devices, NS-205PSE requires its power input 

ranging from +46 ~ +55VDC. 



More information about PET-7000 

There are two ways for PET-7000 getting the power. One is through Ethernet by a 

PoE switch; the other is as usual through wiring by an external power. External power 

should range from +12 ~ 48 VDC. The reason we keep the second way is because it 

might be useful if someday or somehow you have different applications. 

There is a LED on PET-7000. The LED indicates whether the power comes from the 

PoE switch or not. 



1.2. Features 

� Built in Web Server 

Each ET-7000/PET-7000 module has a built-in web server that allows users to 

easily configure, monitor and control the module from a remote location using a 

regular web browser. 

� Web HMI 

The Web HMI function allows the users to create dynamic and attractive web 

pages to monitor and control the I/O points. Users can upload specific I/O layout 

pictures (bmp, jpg, gif format) and define a description for each I/O point. No 

HTML or Java skills are needed to create the web pages. 



� Communication Security 

Account and password are required when logging into the ET-7000/PET-7000 

web server. An IP address filter is also included, which can be used to allow or 

deny connections with specific IP addresses. 

� Modbus Protocol 

The Modbus/TCP slave function on the Ethernet port can be used to provide 

data to remote SCADA software. 

� Built-in Multi-function I/O 

All Digital Output modules provide: 

Power on value (On boot up, the DO status is set to the Power-on value) 

Safe value (If Modbus/TCP communication is lost for a certain period, the DO 

status will be set to the user defined safe value) 

All Digital Input modules provide: 

High/Low latched status 

DI channels can also be used as DI status and 32-bit low speed (100Hz) 

counters. 

� All-in-one Module 

Various I/O components are mixed with multiple channels in a single module, 

which provides the most cost effective I/O usage and enhances performance of 

the I/O operations 



� Automatic MDI / MDI-X Crossover for Plug-and-play 

RJ-45 port supports automatic MDI/MDI-x that can automatically detect the type 

of connection to the Ethernet device without requiring special straight or 

crossover cables. 

� Built-in Dual Watchdog 

The Dual Watchdog consists of a Module Watchdog and a Host Watchdog. 

Module Watchdog is a built-in hardware circuit that can be used to monitor the 

operation of the module and will reset the CPU module if a failure occurs in the 

hardware or the software. 

Host Watchdog is a software function that can be used to monitor the operating 

status of the host, and is used to prevent network communication problems or 

host failures. 

� Ventilated Housing Designed to Operate Between -25 °C to +75 °C 

ET-7000/PET-7000 is housed in a plastic-based shell/case with a column-like 

ventilator that helps to cool the working environment inside the shell/case and 

allows ET-7000/PET-7000 to operate at temperatures ranging from -25 °C to 

+75 °C. 

� I/O Pair Connection 

This function is used to 

create a DI to DO pair 

through the Ethernet. 

Once the configuration is 

completed, 

ET-7000/PET-7000 

module can to 

continuously poll the 

status of remote DI 

device using the Modbus/TCP protocol and then write to 

local DO channels in the background. 



1.3. Specification 

1.3.1. System Specification 

System 

CPU 80186 CPU (80 MHz) 

SRAM 512 KB 

Flash Memory 512 KB 

EEPROM 16 KB 

Dual Watchdog Yes 

Communication 

Ethernet Port 10/100 Base-TX (With Link, Activity LED Indicator) 

Isolation 

Ethernet - 

I/O 2500 VDC 

LED Display 

Automatic MDI/MDI-X 

PoE PoE On (for PET-7000 series only) 

L1 Run indicator 

L2 Link/Act indicator 

L3 10/100M indicator 

Mechanical 

Dimensions (W x H x D) 123 mm x 72 mm x 35 mm 

Installation DIN Rail or Wall mounting 

Environment 

Operating Temperature -25 ˚C ~ +75 ˚C 

Storage Temperature -30 ˚C ~ +80 ˚C 

Humidity 5 ~ 90 % RH, non-condensing 



Power Requirements (for ET-7000 series only) 

Protection Power reverse polarity protection 

Required Supply Voltage +10 VDC ~ +30 VDC (non-regulated) 

Power Consumption 0.10 A @ 24 VDC Max. 

Power Requirements (for PET-7000 series only) 

IEEE 802.3af Class 1 

Required Supply Voltage Powered by Power-Over-Ethernet (PoE) or external 

LED Indicator Yes 

+12~ 48 VDC (non-regulated) 

Power consumption 0.08 A @ 24 VDC Max 



1.3.2. I/O Specification 

1.3.2.1. ET-7042 



Digital Output 

Output Channels 16 

Output Type Sink, Open Collector 

Output Voltage +5 VDC ~ +30 VDC 

Max. Load Current 100 mA/channel at 25 °C 

Output Isolation 3750 Vrms 

Power Requirements 

Direct drive power relay module 

Power Consumption 0.1 A @ 24 VDC Max. 



1.3.2.2. ET-7044/PET-7044 



Digital Input 

Input Channels 8 

Input Type Wet Contact (Sink, Source) 

On Voltage Level +10 VDC ~ 50 VDC 

Off Voltage Level +4 VDC max. 

Input Impedance 10 kOhm 

Max. Count: 4,294,967,285 (32 bits) 

Counters Max. Input Frequency: 500 Hz 

Overvoltage Protection +70 VDC 

Intra-module Isolation 3750 Vrms 



Min. Pulse Width: 1ms 


Output Voltage +10 VDC ~ 40 VDC 


Short Circuit Protection Yes 




Power Consumption 0.08A @ 24 VDC Max. 




Digital Input 








Max. Count: 4,294,967,285 (32 bits) 



















Digital Input 






Max. Count: 4,294,967,285 (32 bits) 












Digital Input 






Max. Count: 4,294,967,285 (32 bits) 










Over-Voltage Protection +48 VDC 









Digital Input 


Input Type Dry Contact 

On Voltage Level Open 

Off Voltage Level Close to GND 


Max. Count: 4,294,967,285 (32 bits) 



Effective Distance 500 m max. 









Digital Input 



On Voltage Level +10 VDC ~ +50 VDC 



Max. Count: 4,294,967,285 (32 bits) 







Output Type Power Relay, Form A (SPST N.O.) 

Operating Voltage Range 250 VAC/30 VDC 

Max. Load Current 5.0 A/channel at 25 °C 

Operating Time 6 ms 

Release Time 3 ms 

VDE 5 A 250 VAC 30,000 ops (10 ops/minute) at 75 °C 

Electrical Life 5 A 30 VDC 70,000 ops (10 ops/minute) at 75 °C 

(Resistive load) UL 5 A 250 VAC/30 VDC 6,000 ops 

3 A 250 VAC/30 VDC 100,000 ops 

Mechanical Life 20,000,000 ops. At no load (300 ops./minute) 

Relay Output Isolation 3000 Vrms 








Digital Input 



On Voltage Level +10 VDC ~ +50 VDC 



Max. Count: 4,294,967,285 (32 bits) 







Output Type PhotoMOS Relay, Form A 

Load Voltage 60 VDC/VAC 

60 V/1.0A (Operating Temperature -25 °C ~ -40 °C) 

Load Current 60 V/0.8A (Operating Temperature +40 °C ~ +60 °C) 

Turn On Time 1.3 ms (Typical) 

Turn Off Time 0.1 ms (Typical) 




60 V/0.7A (Operating Temperature +60 °C ~ +75 °C) 








Output Type PhotoMOS Relay, Form A 

Load Voltage 60 VDC/VAC 

60 V/1.0A (Operating Temperature -25 °C ~ -40 °C) 

Load Current 60 V/0.8A (Operating Temperature +40 °C ~ +60 °C) 

Turn On Time 1.3 ms (Typical) 

Turn Off Time 0.1 ms (Typical) 




60 V/0.7A (Operating Temperature +60 °C ~ +75 °C) 








Output Type Power Relay, Form A (SPST N.O.) 

Operating Voltage Range 250 VAC/30 VDC 

Max. Load Current 5.0 A/channel at 25 °C 

Operating Time 6 ms 

Release Time 3 ms 

VDE 5 A 250 VAC 30,000 ops (10 ops/minute) at 75 °C 

Electrical Life 5 A 30 VDC 70,000 ops (10 ops/minute) at 75 °C 

(Resistive load) UL 5 A 250 VAC/30 VDC 6,000 ops 

3 A 250 VAC/30 VDC 100,000 ops 

Mechanical Life 20,000,000 ops. At no load (300 ops./minute) 






1.4. Wiring Connection 

1.4.1. ET-7042/ET-7044/ET-7050/PET-7044 

1.4.2. ET-7044/ET-7050/ET-7051/PET-7044/PET-7051 



1.4.3. ET-7052/PET-7052 



1.4.4. ET-7053 





1.4.7. ET-7065/ET-7066/PET-7065 






1.5. Overview 

Here is a brief overview of the components and its descriptions for module status. 

1.5.1. Front Panel 

The ET-7000/PET-7000 front panel contains the Ethernet port, connectors and LEDs. 

Ethernet Port 

J1 Connector 

(Pin 1 ~ 9) 

LED Indicators 

PoE LED Indicator 

(for PoE series only) 

J2 Connector 

(Pin 10 ~ 23) 



� J1 Connector 

Depending on the types of the ET-7000/PET-7000 modules. 

For more detailed information regarding the pin assignments of the J1 

Connector, please refer to ―1.3.2. I/O Specification‖ 

� J2 Connector 

Depending on the types of the ET-7000/PET-7000 modules. 

For more detailed information regarding the pin assignments of the J2 

Connector, please refer to ―1.3.2. I/O Specification‖ 

Tips & Warnings 

The definition of pin 8 and pin 0 applies to all types of the 

ET-7000/PET-7000 modules. The definition of the other pins is 

dependent on the particular ET-7000/PET-7000 modules. 

Pin number Name Function 

8 +VS 10 ~ 30 VDC power input 

9 GND Ground connection 



� LED Indicators 

Name LED Action Function 

Run Flashing Firmware is running 

Link/ACT 

10/100M 


� Poe LED Indicator 

ON Ethernet link detected 

OFF No Ethernet link detected 

Flashing Green Ethernet packet received 

OFF Speed 10 Mbps 

Orange Speed 100 Mbps 

If the Run LED does not display the information as above, the 

following steps should be taken: 

Step 1: Switch the power off 

Step 2: Check that the Init/Normal switch is in the Normal position 

(Refer to ―1.5.2. Back Panel‖) 

Step 3: Switch the power on and double-check the LED indicators 

When unit power is supplied via PoE (Power-over-Ethernet), the PoE indicator 

will be on. 

� Ethernet Port 

An Ethernet port is an opening on ET-7000/PET-7000 network equipment that 

Ethernet cables plug into. Ethernet ports accept cables with RJ-45 connectors. 



1.5.2. Back Panel 

The ET-7000/PET-7000 back panel contains the frame ground and 

Frame Ground 

Operating Mode 

Selector Switch 



� Operating Mode Selector Switch 

Init mode: MiniOS7 configuration mode 

Normal mode: Firmware running mode 

In the ET-7000/PET-7000 series, the Switch is always in the Normal position. 

Only when updating the ET-7000/PET-7000 firmware or OS, the switch can be 

moved from the Normal position to the Init position. 

Move the Switch to the Normal position after the update is complete. 

� Frame Ground 

Electronic circuits are constantly vulnerable to Electro-Static Discharge (ESD), 

which become worse in a continental climate area. ET-7000/PET-7000 series 

modules feature a new design for the frame ground, which provides a path for 

bypassing ESD, allowing enhanced static protection (ESD) capability and 

ensures that the module is more reliable. 

The following options will provide a better protection for the module: 

The ET-7000/PET-7000 controller has a metallic board attached to the back of 

the plastic basket as shown in the figure below, point 1. 

When mounted to the DIN rail, connect the DIN rail to the earth ground because 

the DIN rail is in contact with the upper frame ground as shown in the figure 

below, point 2. 

2 

1 

Frame Ground 

Frame Ground 



1.6. Dimensions 

All dimensions are in millimeters. 



1.7. Companion CD 

This package comes with a CD that provides drivers, software utility, all of the required 

documentations…, etc. All of them are listed below. 

CD:\Napdos 

PET7000_ET7000 

Demo 

Document 

PC_Client 

Modbus_TCP 

Application 

Data_Sheet 

ns_205pse 

previous_manual_backup 

firmware 

OS_image 

Tools 

Readme.txt 

quick_start 

EZ_Data_Logger 

Napopcsvr 

Tools for MiniOS7 



2. Getting Started 

If you are a new user, begin with this chapter, it includes a guided tour that provides a 

basic overview of installing, configuring and using the ET-7000/PET-7000. 

2.1. Mounting the Hardware 

The ET-7000/PET-7000 can be mounted with the bottom of the chassis on the DIN rail, 

the wall or piggyback. 

� DIN Rail mounting 

The ET-7000/PET-7000 has 

simple rail clips for mounting reliably on a 

standard 35 mm DIN rail. 

Mounting on DIN Rail Remounting from DIN Rail 

1 

3 

2 


Copyright © 2009 ICP DAS Co., Ltd. All Rights Reserved. E-mail: service@icpdas.com 

3 

1 

2

Din Rail Mountable Model 

Three Din rail mountable models 

are available to mount a variety 

of ICP DAS devices. Each is 

made of stainless steel and has 

a ground wire at the end. 

Part number Maximum number of modules Dimensions 

DRS-125 2 125 mm x 35 mm 

DRS-240 3 240 mm x 35 mm 

DRS-360 5 360 mm x 35 mm 

� Piggyback Mounting 

The ET-7000/PET-7000 has two holes 

on both sides for piggyback mounting 



2.2. Configuring the Boot Mode 

The ET-7000/PET-7000 has two operating modes that can be determined by the 

switch mechanism on the chassis. 

� Init Mode 

Init mode is a way to use MiniOS7 

configuration mode. 

Init 

Normal 

� Normal Mode 

Normal mode is the default mode of operation and the one you will use most of 

the time. Use this mode for more tasks and configurations. Programs also are 

executed in this mode. 

Init 

Normal 

Normal mode is the default mode of operation and the one you will use most of the 

time. Use this mode for more tasks and configurations. Programs also are executed in 

this mode. 

Move the switch to the Normal position after the update is complete 



2.3. Connecting to Network, PC and Power 

The ET-7000/PET-7000 is equipped with an RJ-45 Ethernet port for connection to an 

Ethernet hub/switch and PC 

Non-PoE 

PoE 



2.4. Installing the MiniOS7 Utility 

The MiniOS7 Utility is a useful tool that provides a quick and easy way to update OS 

image or firmware, configure Ethernet settings, and download files to 

ET-7000/PET-7000 from PC. 

Step 1: Get the MiniOS7 Utility tool 

The MiniOS7 Utility can be obtained from companion CD or our FTP site: 

CD:\Napdos\minios7\utility\minios7_utility\ 

ftp://ftp.icpdas.com/pub/cd/8000cd/napdos/minios7/utility/minios7_utility/ 

Step 2: Follow the prompts to complete the installation 

After the installation has been 

completed, there will be a new 

short-cut for MiniOS7 Utility on 

the desktop. 



2.5. Using MiniOS7 Utility to Assign a new IP 

The ET-7000/PET-7000 are web-based devices, which comes with a default IP 

address, therefore, you must first assign a new IP address to the ET-7000/PET-7000. 

The factory default IP settings are as follows: 

Item Default 

IP Address 192.168.255.1 

Subnet Mask 255.255.0.0 

Gateway 192.168.0.1 

Step 1: Run the MiniOS7 Utility 

Double-click the MiniOS7 Utility shortcut on your desktop. 



Step 2: Press “F12” or choose “Search” from the “Connection” 

menu 

After pressing F12 or choosing Search from Connection menu, that will 

search all of the MiniOS7 modules on your network. 

See the status tip, waiting 

for the search to be done. 

Step 3: Choose the field “192.168.255.1” and then choose “IP 

setting” from the toolbar 

Choose default value ―192.168.255.1‖ for fields in the list, and then choose IP 

setting from the toolbar. 



Step 4: Assign a new IP address and then choose “Set” button 

You can manually assign an IP address or use DHCP to dynamically assign IP 

addresses 

Step 5: Choose “Yes” button 

After completing the settings, the Confirm dialog box will appear, and then 

choose the Yes button to exit the procedure. 



Step 6: Reboot the module and then press “F12” or choose “Search” 

from the “Connection” menu to check the IP setting 

After completing the settings, you can reboot the module and then using 

MiniOS7 to search module again for making sure that your IP settings are 

correct. 



2.6. Enabling Adobe Flash Player in Browser 

Your browser must support the Adobe Flash Player in order to view the 

ET-7000/PET-7000 web site. 

If you do not have it installed, please follow the instructions below. 

Step 1: Go to the Adobe Flash Player Download Center 

The Adobe Flash Player Download Center: 

http://get.adobe.com/flashplayer/ 

Step 2: Follow the prompts to download the installation file 

Step 

Click the Agree and install now button and follow the instructions to download 

the installation file 

3: Verify that the Adobe Flash Player has been installed 



You can verify that it has been installed correctly by clicking the link below. 

http://get.adobe.com/flashplayer/completion/dlm/ 



3. Web Applications 

The ET-7000/PET-7000 contains an advanced web configuration system that 

provides users with access ET-7000/PET-7000 applications through a standard web 

browser. 

Logging in to the ET-7000/PET-7000 Web site 

You can log in to the ET-7000/PET-7000 web site from any computer that has 

Internet access. 

Step 1: Open a browser 

In several browsers, Mozilla Firefox and Internet Explorer are both reliable 

and popular internet browsers. 

Step 2: Type the URL address of the ET-7000/PET-7000 

If you haven‘t changed the default IP address of the ET-7000/PET-7000, 

please refer section ―2.5. Using MiniOS7 Utility to Assign a new IP‖ to 

configure it. 



Step 3: Fill out the User name and Password 

After entering the IP 

address, the login dialog 

box will appear and prompt 

you to enter your 

username and password. 

The factory default user 

name and password are as 

follows: 

Item Default 

User name Admin 

Password Admin 



Step 4: Welcome to ET-7000/PET-7000 web site 

After logging into the ET-7000/PET-7000 web site, the welcome page will 

appear. 

This site serves several functions. You can 

easily access these functions through the 

menu on the left side. 

The Overview of the Main menu provides a 

brief introduction and explanation of this 

site. 



3.1. Overview 

The Overview links to the welcome page that determines two message body parts. 



The first part of this page provides basic information about the ET-7000/PET-7000 

hardware and software. 

The second part of this page provides a brief introduction of this web site. 



3.2. Configuration 

All items below are located under the Configuration menu: 

Network Settings: Links to the Ethernet 

Settings page that allows you to access 

the IP settings and check the software 

version. 

Basic Settings: Links to the Basic 

Settings page that allows you to configure 

the basic information of this site. 

Module I/O Settings: Links to the 

Common Functions page that allows you 

to configure the settings of the Modbus 



3.2.1. Network Settings 

The Ethernet Settings page provides the following functions: 

� Configure the network settings 

� Check the software information 



3.2.1.1. Configure the Network Settings 

A generally network setting includes the following parameters: 

� An IP address: Each ET-7000/PET-7000 on the network must have a unique IP 

address. It is used to assign an IP address. 

� A default gateway: A gateway (or router) is a system that is used to connect a 

network with one or more other networks. 

� A subnet mask: The subnet mask indicates which portion of the IP address that 

is used to identify the local network or subnet. 

There are two ways to configure the network settings: 

� Dynamic configuration: Dynamic Host Configuration Protocol (DHCP) is a 

network application protocol that automatically assigns IP address to devices. 

� Manually configuration: If you don‘t have a DHCP server in your network, you 

can configure network settings manually. 

Dynamic Configuration 

Dynamic configuration is very easy to configure. If you have a DHCP server, network 

address can be configured dynamically by following steps: 

Step 1: Enable the DHCP 

Step 2: Click MODIFY_SETTING to finished configuring the network settings 



Manually Configuration 

In manual configuration, you have to assign all the network settings manually. To 

configure network settings manually, follow the following steps: 

Step 1: Disable the DHCP 

Step 2: Enter the network settings 

Step 3: Click MODIFY_SETTING to finished configuring the network settings 



3.2.1.2. Check the software information 

The software information includes the following data items: 

� Web Server Lib Ver.: The version of the web server library. The web server 

library is a collection of web development solutions. 

� MiniOS7 Ver.: The version of the MiniOS7 OS image. The MiniOS7 is an 

embedded OS designed for ICP DAS controller. 

After updating the ET-7000/PET-7000 firmware, you can check the version of the 

ET-7000/PET-7000 software information. 



3.2.2. Basic Settings 

The Basic Settings page provides the following functions: 

� Configure the module information 

� Configure the web site information 

� Reset all settings to default 



3.2.2.1. Configure the Module Information 

The module information includes the following data items: 

� Module Name: The name of the module that can be modified. It has an initial 

value depending on the name of the module. 

� Module Information: The module information indicates the name of the alias 

that is used to identify the module. 

To configure the module information, follow the following steps: 

Step 1: Enter the module information 

Step 2: Click Submit to finished configuring the module information 



3.2.2.2. Configure the Web site Information 

The module information includes the following data items: 

� Top page Information (First line) and Top page Information (Second line): 

� 

The title of the website that can be modified, you can view the title information 

in the top-left corner. The title information can be determined as follows: 



� More Information URL: The URL of the more information menu that can be 

modified, you can specify the ET-7000/PET-7000 URL for getting additional 

ET-7000/PET-7000 supports. 

� Web Server TCP Port: A port number of the TCP/IP port. A port number is a 

16-bit unsigned integer. By default, TCP/IP uses port 80. 



To configure the web site information, follow the following steps: 

Step 1: Enter the web site information 

Step 2: Click Submit to finished configuring the module information 



3.2.2.3. Reset All Settings to Default 

According to the menu selection of this web, the reset function can be divided into 

the following categories. You can use this function to reset the settings to their 

factory default. 

� Configuration 

� Authentication 

� Web HMI 

� Pair Connection 

� All 

To reset the settings to their factory default, follow the following steps: 

Step 1: Enable the reset selection 

Step 2: Click Submit to finished resetting the settings to their factory default 



3.2.2.3.1. Factory Default Settings for Configuration Menu Service 

The table below lists the factory default settings of the configuration menu. 

Network Settings 

Data Item Factory Default Settings 

IP 192.168.255.1 

Gateway 192.168.0.1 

Mask 255.255.0.0 

DHCP Disable 

Basic Settings 

Data Item Factory Default Setting 

Module Name Depending on the module name 

Module Information Empty 

Top page Information (First line) ICP DAS 

Top page Information (Second line) http://www.icpdas.com 

More Information URL 

Web Server TCP Port 80 

Configuration Disable 

Authentication Disable 

Web HMI Disable 

Pair Disable 

All Disable 

http://www.icpdas.com/products/Remote 

_IO/et-7000/et-7000_introduction.htm 



Module I/O Settings 

The default settings of the I/O modules depending on the Modbus function of the 

ET-7000/PET-7000 module. 

For a more detailed description of these Modbus function, please refer to section ―4.3. 

Modbus Register Map‖. 



3.2.2.3.2. Factory Default Settings for Authentication Menu Service 

The table below lists the factory default settings of the Authentication menu. 

Account Management 

Factory Default Setting 

A default user account consists of a account name “Admin” and a password 

“Admin”. 

Accessible IP Settings 


Empty, there is no limit to allow any outgoing access. 

3.2.2.3.3. Factory Default Settings for Web HMI Menu Service 

The table below lists the factory default settings of the Web HMI menu. 

Web HMI 


Depending on the Modbus setting function of the ET-7000/PET-7000. 

Web Editing 


0 Page 

3.2.2.3.4. Factory Default Settings for Pair Connection Menu Service 

The table below lists the factory default settings of the Web HMI menu. 

Pair Connection 


Empty 



3.2.3. Module I/O Settings 

The Common Function page provides options to configure the settings of the 

Modbus functions. Modbus setting functions differently depending on the type of 

ET-7000/PET-7000 module, all settings can be divided into either common, DI, DO, 

AI and AO settings. 

The illustration below shows the Modbus settings for the ET-7019 module 

This page display different contents depending on the Modbus function of the 


For a more detailed description of these Modbus function, please refer to section ―4.3. 

Modbus Register Map‖. 



3.3. Authentication 

All items below are located under the Authentication menu: 

Account Management: Links to the 

Privilege management page that allows 

you to manage the user accounts and 

their privileges. 

Accessible IP Settings: Links to the IP 

filter Settings page that allow you to 

control access to the web site 



3.3.1. Account Management 

The Basic Settings page provides the following functions: 

� Configure the user accounts 

� Load the factory default user account 



3.3.1.1. Configure the user accounts 

The ET-7000/PET-7000 web site supports up to 5 user accounts. 

� A built-in administrator account 

The built-in Administrator is basically a setup and disaster recovery account 

that can be deleted. You can change the administrator account‘s password. 

� Four user-defined account 

Each user account consists of 

� An account name: Specifies the name of This can be your name or another 

alias 

� A password: The system will ask you to type this in twice to ensure it is correct. 

� The authority: that determines what operations the user is allowed to perform. 

The authority has the following roles to determine what operations the user is 

allowed to perform. 

� Admin: Enables access to all ET-7000/PET-7000 website features, functions, and 

commands. 

� User: Enables limited access to ET-7000/PET-7000 website features, functions, 

and commands. In general, operators cannot change configuration settings. 

When you create user accounts, you can Enable or Disable user accounts. 

Step 1: Enter the user account information, and then select the enable checkbox 

Step 2: Click Submit to finished configuring the user accounts 



3.3.1.2. Load the factory default user accounts 

The ET-7000/PET-7000 has a built-in administrator account named Admin which is 

created when it is installed by default. The default account cannot be deleted. 

Step 1: Select the Load Setup Default checkbox 

Step 2: Click Submit to finished configuring the user accounts 



3.3.2. Accessible IP Settings 

The IP filter Settings page provides the following functions: 

� Configure connection filtering 



3.3.2.1. Configuring IP filter 

The ET-7000/PET-7000 with an IP filter that enables you to restrict or grant user 

access based an IP filter list you create. 

The filter can be enabled or disable by selecting the Enable the IP filter table 

checkbox 


By default, there is no limit to allow any outgoing access. 

Each list entry can be active or inactive by clicking its Active the rule 

� Configure the user accounts 

Here we provide two basic methods for configuring the IP filter. 



Method 1: Allows access from a single IP address 

Step 1: Select the Enable the IP filter table checkbox 

Step 2: Enter the same IP address in the From (IP Address) and To (IP Address) 

Step 3: Select the Active the rule checkbox 

Step 4: Click Submit to finished configuring the IP filter list 

Method 2: Allow access from a group of IP addresses 

Step 1: Select the Enable the IP filter table checkbox 

Step 2: Enter a range of IP addresses in the From (IP Address) and To (IP Address) 

Step 3: Select the Active the rule checkbox 

Step 4: Click Submit to finished configuring the IP filter list 



3.4. Web HMI 

All items below are located under the Web HMI menu: 

Web HMI: Links to the I/O monitor page 

that allows you to monitor the 

Web Edit: Links to the Web Page 

Configuration page that allows you to 



3.4.1. Web HMI 

By default, this page displays summary information about I/O channels which are 

classified according to the module type. 

Here you can add more tabs and set the starting tab by editing the web edit page, for 

more details, please refer to 3.4.2. Web Edit. 



3.4.2. Web Edit 

The Web Editing page provides functions to create the user-defined web pages 

which are displayed on the Web HMI page. 

Web HMI page 



By default, there are no pages to be listed in the Web Page Configuration form. 

The ET-7000/PET-7000 supports up to 10 user-defined web pages 

A maximum of 10 pages can be created. 



Below is an example of how to create your own page. 

Example: 

Create a Web page to monitor the I/O of the conveyer system shown below. The I/O 

system contains a sensor that are used to detect the products, and a switch that are 

used to turn the conveyer motor on and off. 

Step 1: Add a new page 

Click Add new Page 



Step 2: Upload a diagram 

Click Browse… to select an image, and then click Upload to upload images to the 



The file type of images can be either of .jpg, .gif, or .bmp. The 

recommended resolution for the image to be displayed on the 

editing Web page is 340 * 250 pixels. 

After the upload is completed, the image information will be displayed and the image 

will be added in the Image list box as below shown. 

Image information 

1. Click Browse… to select an image 

2. Click Upload to upload the image 

Added in the Image list box 



Step 3: Set the page name and select the diagram 

Type the page name in the Page Name field and then select the diagram from the 

Image list box. (After selecting the diagram, the diagram will be shown in the Preview 

window) 

Step 4: Add the register item for reading selected sensor input 

Click Edit in the first row of the Group table and then the Edit Group Register window 

will be displayed. 

Set the page name and select the diagram 

Click Edit to edit the register item 



Step 5: Add a DI for reading PHS1 input 

Set PHS1 to be an input, you can 

using the Modbus Register 1, 

then select Discrete Input as the 

Register Type and type PHS as 

the Alias. 

Step 6: Save selected sensor settings 

Click Save button to complete set up 

Step 7: Add the register item for writing selected motor output to turn/ 

After save the register settings, the new register item will be displayed in the Group 

table. 

Click Edit in the second row of the Group table and then the Edit Group Register 

window will be displayed. 

Click Edit to edit the register item 



Step 8: Add a DO for writing Motor1 output to 

turn the conveyer motor on and off 

Set Motor to be an output, you can 

using the Modbus Register 1, then 

select Coil as the Register Type and 

type Motor as the Alias. 

Step 9: Save selected sensor settings 


Step 10: Save the editing page. 




Step 11: Browse the Conveyer web page. 

After saving the editing page, the editing page named as Conveyer has 

been added to the list box on the top-left hand side of the Web Page 

Configuration window. Then select the Conveyer item and click Go to 

browse to the Conveyer web page. 

The conveyer image file and all register items will be displayed on the Conveyer 

web page. 



3.5. Pair Connection 

The Pair Connection links to the configuration page of the pair connection function. 

This pair connection function is a particular 

feature of ET-7000/PET-7000 that can 

enable a pair of DI-to-DO via Modbus/TCP 

(Ethernet). 



3.6. More Information 

The More Information links to the ET-7000/PET-7000 web site that provides more 

detailed information related to ET-7000/PET-7000 series products. 

The default URL of the More Information item is: 

You can change the URL of this link by 

simply editing the URL, for more details, 

please refer to section ―3.2.2.2. 

Configure the Web site Information‖ 

http://www.icpdas.com/products/Remote_IO/et-7000/et-7000_introduction.htm 



4. Modbus Applications 

The ET-7000/PET-7000 is a Modbus device that allows you to access terminals data 

via Ethernet and communicates using a master-slave technique in which only one 

device (the master) can initiate transactions (called queries). The other devices 

(slaves) respond by supplying the requested data to the master, or by taking the 

action requested in the query. 

Most SCADA Supervisor Control And Data Acquisition and HMI software can easily 

integrate serial devices via the Modbus protocol, such as Citect, ICONICS, iFIX, 

InduSoft, Intouch, Entivity Studio, Entivity Live, Entivity VLC, Trace Mode, Wizcon, 

Wonderware, etc. 



4.1. What is Modbus TCP/IP? 

Modbus is a communication protocol developed by Modicon in 1979. 

Different versions of Modbus used today include Modbus RTU (based on serial 

communication like RS485 and RS232), Modbus ASCII and Modbus TCP, which is 

the Modbus RTU protocol embedded into TCP packets. 

Modbus TCP is an internet protocol. The protocol embeds a Modbus frame into a TCP 

frame so that a connection oriented approach is obtained thereby making it reliable. 

The master query‘s the slave and the slave responds with the reply. The protocol is 

open and hence highly scalable. 



4.2. Modbus Message Structure 

Modbus devices communicate using a master-slave (client-server) technique in which 

only one device (the master/client) can initiate transactions (called queries). The other 

devices (slaves/servers) respond by supplying the requested data to the master, or by 

taking the action requested in the query. 

A master‘s query will consist of a slave address (or broadcast address), a function 

code defining the requested action, any required data, and an error checking field. A 

slave‘s response consists of fields confirming the action taken, any data to be 

returned, and an error checking field. 

Address 

(1 byte) 

Function Code 

(1 byte) 

Data 

Address specifies the address of the receiver. 

Function Code specifies the message type. 

Data is the data block. 

(0 to 252 bytes) 

Checksum 

(2 bytes) 

Checksum specifies the numerical check value for testing the validity of the 

protocol. 



4.2.1. Address 

The first byte of information in the message structure of Modbus is the receiver‘s 

address. The valid addresses are in the range of 0 to 247. Addresses from 1 to 247 

are given to individual Modbus devices and 0 is used for broadcast. 

Reference Description 

0xxxx 

1xxxx 

3xxxx 

4xxxx 

Read/Write Discrete Outputs or Coils. A 0x reference 

address is used to device output data to a digital output 

channel. 

Read Discrete Inputs. The ON/OFF status of a 1x reference 

address is controlled by the corresponding digital input 

channel. 

Read Input Registers. A reference register contains a 16-bit 

number received from an external source --- e.g. an analog 

signal. 

Read/Write Output or Holding Registers. A 4x register is 

used to store 16-bits of numerical dada (binary or decimal), 

or to send the data from the CPU to an output channel. 



4.2.2. Function Codes 

The second byte in the frame structure is the function code. The function code 

describes what the slave is required to do. Valid function codes are between 1 and 

255. The slave uses the same function code as the request to answer it. Only when 

error occurs in the system, the highest bit of the function code will be made ‗1‘. Hence 

the master will know if the message has been transmitted correctly or not. 

Code Function Reference 

01 (01H) Read Coils (Output) Status 0xxxx 

02 (02H) Read Input Status 1xxxx 

03 (03H) Read Holding Registers 4xxxx 

04 (04H) Read Input Registers 3xxxx 

05 (05H) Force Single Coil (Output) 0xxxx 

06 (06H) Preset Single Register 4xxxx 

15 (0FH) Force Multiple Coils (Outputs) 0xxxx 

16 (10H) Preset multiple Registers 4xxxx 

4.2.3. Data Field 

The data field consists of messages sent between master and slave. The messages 

contain additional information about the action to be taken by the slave or any 

information requested by the slave. When the slave does not require this information 

the data field can be nonexistent. 

4.2.4. Error Check 

The error check performed in Modbus/RTU is Cyclic Redundancy Check (CRC). Both 

the transmitting device and the receiver compute CRC. Two bytes are used for this 

purpose and generally one bit errors are detected by this method. 



4.3. Modbus Register Map 

4.3.1. Common Function 

� (0xxxx) DO address 

Begin 

address 

Points Description Registers 

126 1 Recover all I/O default 

settings 

127 1 Recover all web default 

settings 

per Point 

Range Access 



Type 

1 1=recover W 

(Pulse) 

1 1=recover W 

(Pulse) 

128 1 ID default settings 1 1=recover W 

(Pulse) 

129 1 Web Enable/Disable 1 1=recover W 

(Pulse) 

133 1 Reboot ET-7000 1 1=reboot W 

� (3xxxx) AI address 

Begin 

address 


per Point 

150 1 OS image version 1 123 means 

version=1.2.3 

151 1 Total Firmware version 1 123 means 

158 1 Modbus communication 

status 

version=1.2.3 

1 0= No Error 

-1= CRC error 

-2= Timeout 

160 1 Pair Connection 1 0=Normal 

1=Timeout 

(Pulse) 

Range Access 

2=Disconnected 

Type 

R 

R 

R 

R

� (4xxxx) AO address 

Begin 

address 


per Point 

255 1 CPU reset status 1 1= by power on 

Range Access 

2= by 0.8 second 

WDT 

3= by Reset 

command 

256 1 CPU reset events 1 How many CPU reset 

events has 

happened? 

When CPU is reset by 

one of the situations 

described in register 

555, the event 

increases one count. 

257 1 Set host watch dog timer 1

4.3.2. Particular Function 



4.3.2.1. ET-7042 I/O Address Mapping 

Modbus Address 

(Base 0) 

00000 

00001 

00002 

00003 

00004 

00005 

00006 

00007 

00008 

00009 

00010 

00011 

DO Channel 

(Base 0) 

00012 

00013 

00014 

00015 

11 10 9 8 7 6 5 4 3 2 1 0 

13 

14 



12 

15 

DO Channel 

(Base 0)

Detailed Modbus Address Table for ET-7042 


Begin 

address 


per Point 

Range Access 



Type 

0 0~15 Digital Output 1 0=Off 1=On R/W 

231 1 Write DO Power on value to 

EEPROM 

232 1 Write DO Safe value to 

EEPROM 

235 0~15 Power on value for DO 1 0=Off 

1 1=Write W 

(Pulse) 

1 1=Write W 

1=On 

267 0~15 Safe value for DO 1 0=Off 


Begin 

address 


per Point 

(Default=0) 

1=On 

(Default=0) 

(Pulse) 

R/W/E 

R/W/E 

Value Access 

110 1 DO (channel number) 1 16 R 

111 1 Power on value for DO 

(channel number) 

112 1 Safe value for DO (channel 

number) 

Type 

1 16 R 

1 16 R

4.3.2.2. ET-7044/PET-7044 I/O Address Mapping 


(Base 0) 

00000 

00001 

00002 

00003 

00004 

00005 

00006 

00007 

10000 

10001 

10002 

DI Channel 

(Base 0) 

10003 

10004 

10005 

10006 

10007 

DI Channel 

(Base 0) 

2 1 0 7 6 5 4 3 2 1 0 

3 4 5 6 7 

DO Channel 

(Base 0) 



Detailed Modbus Address Table for ET-7044/PET-7044 


Begin 

address 


per Point 

Range Access 



Type 



EEPROM 


EEPROM 


1 1=Write W 

(Pulse) 

1 1=Write W 

1=On 



Begin 

address 


per Point 

(Default=0) 

1=On 

(Default=0) 

(Pulse) 

R/W/E 

R/W/E 

Value Access 


111 1 Power on value for DO 


112 1 Safe value for DO (channel 

number) 

Type 

1 16 R 

1 16 R

4.3.2.3. ET-7050 I/O and Counter Address Mapping 

� ET-7050 I/O Address Mapping 


(Base 0) 

00000 

00001 

00002 

00003 

00004 

00005 

10000 

10001 

10002 

10003 

10004 

10005 

DI Channel 

(Base 0) 

DI Channel 

(Base 0) 

10006 

10007 

10008 

10009 

10010 

10011 

543210 543210 

6 7 8 9 

1011 

DO Channel 

(Base 0) 



� ET-7050 Counter Address Mapping 


(Base 0) 

30016 

30018 

30020 

30022 

30024 

30026 

Counter Channel 

(Base 0) 


30028 

30030 

30032 

30034 

30036 

30038 

(Base 0) 

543210 

6 7 8 9 

1011 





Begin 

address 


per Point 

Range Access 



Type 


32 1 Clear all DI latched status (high) 1 1=Clear W (Pulse) 

33 1 Clear all DI latched status (low) 1 1=Clear W (Pulse) 

34 0~5 Clear low speed (500Hz) digital 

counter 

150 1 Enable all DI latched status 

(high/low) 

151 0~5 Enable low speed (500Hz) digital 

counter 


EEPROM 

1 1=Clear W (Pulse) 

1 0=Disable 

1=Enable 

(Default=0) 

1 0=Disable 

1=Enable 

(Default=0) 

R/W/E 

R/W/E 

1 1=Write W (Pulse) 

232 1 Write DO Safe value to EEPROM 1 1=Write W (Pulse) 


1=On 


(Default=0) 

1=On 

(Default=0) 

R/W/E 

R/W/E

� (1xxxx) DI address 

Begin 

address 


per Point 

0 0~11 Digital Input 1 0=Off 

Range Access 

1=On 

32 0~11 Digital latched status (high) 1 0=no 

1=latched 

64 0~11 Digital latched status (low) 1 0=no 


Begin 

address 

16 0~11 

Points Description 

Low speed (500Hz) digital 

counter 

Registers 

per Point 

� (3xxxx) AI address (Static Channel Number Value) 

Begin 

address 


1=latched 

Range 



Type 

R 

R 

R 

Access 

Type 

2 0~4294967296 R 

Registers 

per Point 

Value 

100 1 DI (channel number) 1 12 R 

101 1 DI high/low latch (channel number) 1 12 R 


111 1 

Power on value for DO (channel 

number) 

Access 

Type 

1 6 R 

112 1 Safe value for DO (channel number) 1 6 R 

121 1 


Begin 

address 

Low speed counter (500Hz) 



50 0~11 

Preset value for low speed (500Hz) 

digital counter 

Registers 

per Point 

2 

1 12 R 

Range 

0~429496729 

6 (Default=0) 

Access 

Type 

R/W/E

4.3.2.4. ET-7051/PET-7051 I/O and Counter Address Mapping 

� ET-7051/PET-7051 I/O Address Mapping 


(Base 0) 

00008 

00009 

00010 

00011 

00012 

DI Channel 

(Base 0) 

00000 

00001 

00002 

00003 

00004 

00005 

00006 

00007 

9 8 

10 

11 

12 

7 6 5 4 3 2 1 0 

00013 

00014 

00015 

13 

14 

15 

DI Channel 

(Base 0) 



� ET-7051/PET-7051 Counter Address Mapping 


(Base 0) 


(Base 0) 

30016 

30018 

30020 

30022 

30024 

30026 

30028 

30030 

30032 

30034 

30036 

30038 

30040 

30042 

30044 

30046 

9 8 

10 

11 

12 

7 6 5 4 3 2 1 0 

14 

15 

16 


(Base 0) 





Begin 

address 


Registers 

per Point 

Range 



Access 

Type 



34 0~15 

150 1 

151 0~15 

Clear low speed (500Hz) digital 

counter 

Enable all DI latched status 

(high/low) 

Enable low speed (500Hz) digital 

counter 


Begin 

address 


Registers 

per Point 


1 

1 

0=Disable 

1=Enable 

(Default=0) 

0=Disable 

1=Enable 

(Default=0) 

Range 

R/W/E 

R/W/E 

Access 

0 0~15 Digital Input 1 0=Off 1=On R 

32 0~15 Digital latched status (high) 1 0=no 1=latched R 

64 0~15 Digital latched status (low) 1 0=no 1=latched R 

Type


Begin 

address 

16 0~15 



counter 

Registers 

per Point 


Begin 

address 


Range 



Access 

Type 

2 0~4294967296 R 

Registers 

per Point 

Value 

Access 


101 1 

121 1 

DI high/low latch (channel 

number) 


Begin 

address 

50 0~15 




Preset value for low 

speed (500Hz) digital 

counter 

Registers 

per Point 

2 

Type 

1 16 R 

1 16 R 

Range 

0~4294967296 

(Default=0) 

Access 

Type 

R/W/E




(Base 0) 

00000 

00001 

00002 

00003 

00004 

00005 

00006 

00007 

10000 

10001 

10002 

DI Channel 

(Base 0) 

10003 

10004 

10005 

10006 

10007 

DI Channel 

(Base 0) 

2 1 0 7 6 5 4 3 2 1 0 

3 4 5 6 7 

DO Channel 

(Base 0) 





(Base 0) 

30016 

30018 

30020 


(Base 0) 

2 1 0 


30022 

30024 

30026 

30028 

30030 

(Base 0) 

3 4 5 6 7 





Begin 

address 


Registe 

rs per 

Point 

0 0~7 Digital Output 1 

Range 

0=Off 

1=On 



Access 

Type 



34 0~7 


counter 

150 1 Enable all DI latched status (high/low) 1 

151 0~7 


counter 

R/W 


1 

0=Disable 

1=Enable 

(Default=0) 

0=Disable 

1=Enable 

(Default=0) 

R/W/E 

R/W/E 

231 1 Write DO Power on value to EEPROM 1 1=Write W (Pulse) 

232 1 Write DO Safe value to EEPROM 1 1=Write W (Pulse) 

235 0~7 Power on value for DO 1 

267 0~7 Safe value for DO 1 

0=Off 

1=On 

(Default=0) 

0=Off 

1=On 

(Default=0) 

R/W/E 

R/W/E


Begin 

address 


Registers 

per Point 

0 0~7 Digital Input 1 

32 0~7 Digital latched status (high) 1 

64 0~7 Digital latched status (low) 1 


Begin 

address 

16 0~7 



counter 

Registers 

per Point 


Begin 

address 


0=off 

1=on 

0=no 

Range 

1=latched 

0=no 

1=latched 

Range 



Access 

Type 

R 

R 

R 

Access 

Type 

2 0~4294967296 R 

Registers 

per Point 

Value 

Access 


101 1 


number) 

Type 

1 8 R 


111 1 

112 1 

121 1 

Power on value for DO 


Safe value for DO (channel 

number) 


Begin 

address 

50 0~7 






counter 

Registers 

per Point 

2 

1 8 R 

1 8 R 

1 8 R 

Range 

0~4294967296 

(default=0) 

Access 

Type 

R/W/E

4.3.2.6. ET-7053 I/O and Counter Address Mapping 

� ET-7053 I/O Address Mapping 


(Base 0) 

10000 

10001 

10002 

10003 

10004 

10005 

10006 

10007 

10008 

10009 

10010 

10011 

10012 

DI Channel 

(Base 0) 

DI Channel 

(Base 0) 

00013 

00014 

00015 

12 

11 10 9 8 7 6 5 4 3 2 1 0 

14 

15 



13

� ET-7053 Counter Address Mapping 


(Base 0) 

30016 

30018 

30020 

30022 

30024 

30026 

30028 

30030 

30032 

30034 

30036 

30038 

30040 


(Base 0) 


(Base 0) 

30042 

30044 

30046 

12 

11 10 9 8 7 6 5 4 3 2 1 0 

14 

15 



13



Begin 

address 


Registers 

per Point 

32 1 Clear all DI latched status (high) 1 1=clear 

33 1 Clear all DI latched status (low) 1 1=clear 

34 0~15 

150 1 

151 0~15 


counter 


(high/low) 


counter 


Begin 

address 


1 1=clear 

Range 



1 

1 

Registers 

per Point 

0=disable 

1=enable 

(default=0) 

0=disable 

1=enable 

(default=0) 

Range 

Access 

Type 

W 

(Pulse) 

W 

(Pulse) 

W 

(Pulse) 

R/W/E 

R/W/E 

Access 

0 0~15 Digital Input 1 0=off 1=on R 

32 0~15 Digital latched status (high) 1 0=no 1=latched R 

64 0~15 Digital latched status (low) 1 0=no 1=latched R 


Begin 

address 

16 0~15 



counter 

Registers 

per Point 

Range 

Type 

Access 

Type 

2 0~4294967296 R


Begin 

address 


Registers 

per Point 

Value 


101 1 

121 1 


number) 


Begin 

address 

50 0~15 




Preset value for low speed 

(500Hz) digital counter 



Access 

Type 

1 16 R 

1 16 R 

Registers 

per Point 

2 

Range 

0~4294967296 

(default=0) 

Access 

Type 

R/W/E




(Base 0) 

00000 

00001 

00002 

00003 

00004 

00005 

DO Channel 

(Base 0) 

10005 

10004 

10003 

10002 

10001 

10000 

5 4 3 2 1 0 

5 4 3 2 1 0 

DI Channel 

(Base 0) 





(Base 0) 

30026 

30024 

30022 

30020 

30018 

30016 

5 4 3 2 1 0 





Begin 

address 


Registers 

per Point 

Range 



Access 

Type 

0 0~5 Digital Output 1 0=off 1=on R/W 

32 1 Clear all DI latched status (high) 1 1=clear 

33 1 Clear all DI latched status (low) 1 1=clear 

34 0~5 

150 1 

151 0~5 

231 1 


counter 


(high/low) 


counter 

Write DO Power on value to 

EEPROM 

1 1=clear 

1 

1 

0=disable 

1=enable 

(default=0) 

0=disable 

1=enable 

(default=0) 

1 1=write 

232 1 Write DO Safe value to EEPROM 1 1=write 



� (1xxx) DI address 

Begin 

address 


Registers 

per Point 

0 0~5 Digital Input 1 

32 0~5 Digital latched status (high) 1 


0=off 

1=on 

(default=0) 

0=off 

1=on 

(default=0) 

0=off 

1=on 

0=no 

Range 

1=latched 

0=no 

1=latched 

W 

(Pulse) 

W 

(Pulse) 

W 

(Pulse) 

R/W/E 

R/W/E 

W 

(Pulse) 

W 

(Pulse) 

R/W/E 

R/W/E 

Access 

Type 

R 

R 

R

� (3xxx) AI address 

Begin 

address 

16 0~5 



counter 

Registers 

per Point 

� (3xxx) AI address (Static Channel Number Value) 

Begin 

address 


Range 



Access 

Type 

2 0~4294967296 R 

Registers 

per Point 

Value 

Access 


101 1 


number) 

Type 

1 6 R 


111 1 

112 1 

121 1 




number) 

� (4xxx) AO address 

Begin 

address 

50 0~5 




Preset value for low speed 

(500Hz) digital counter 

1 6 R 

1 6 R 

1 6 R 

Registers 

per Point 

2 

Range 

0~4294967296 

(default=0) 

Access 

Type 

R/W/E




(Base 0) 

00000 

00001 

00002 

00003 

00004 

00005 

DO Channel 

(Base 0) 

DI Channel 

(Base 0) 

10005 

10004 

10003 

10002 

10001 

10000 

5 4 3 2 1 0 

5 4 3 2 1 0 





(Base 0) 

30016 

30018 

30020 

30022 

30024 

30026 

5 4 3 2 1 0 





Begin 

addres 

s 

Points Description Register 

s per 

Point 

0 0~5 Digital Output 1 0=off 

1=on 

32 1 Clear all DI latched status 

(high) 

33 1 Clear all DI latched status 

(low) 

34 0~5 Clear low speed (500Hz) 


150 1 Enable all DI latched status 

(high/low) 

151 0~5 Enable low speed (500Hz) 



EEPROM 


EEPROM 

Range Access 

Type 



R/W 

1 1=clear W 

(Pulse) 

1 1=clear W 

(Pulse) 

1 1=clear W 

(Pulse) 

1 0=disable 

1=enable 

R/W/E 

(default=0) 

1 0=disable 

1=enable 

(default=0) 

R/W/E 

1 1=write W 

(Pulse) 

1 1=write W 

(Pulse) 

235 0~5 Power on value for DO 1 0=off 

1=on 

(default=0) 

267 0~5 Safe value for DO 1 0=off 

1=on 


Begin 

addres 

s 


Registers 

per Point 

(default=0) 

Range 

R/W/E 

R/W/E 

Access 

Type 

0 0~5 Digital Input 1 0=off 1=on R 

32 0~5 

Digital latched status 

(high) 

1 

0=no 

1=latched 

R



Begin 

addres 

s 


per Point 

16 0~5 Low speed (500Hz) 



Begin 

address 


0=no 

1=latched 



R 

Range Access 

Type 

2 0~4294967296 R 

Registers 

per Point 

Value 

Access 


101 1 


number) 

Type 

1 8 R 


111 1 

112 1 

121 1 




number) 


Begin 

address 

50 0~5 






counter 

Registers 

per Point 

2 

1 8 R 

1 8 R 

1 8 R 

Range 

0~4294967296 

(default=0) 

Access 

Type 

R/W/E



(Base 0) 

00000 

00001 

00002 

00003 

00004 

00005 

DO Channel 

(Base 0) 

DO Channel 

(Base 0) 

10006 

10007 

5 4 3 2 1 0 

6 7 





Begin 

address 


Registers 

per Point 

Range 



Access 

Type 


231 1 

232 1 


EEPROM 

Write DO Safe value to 

EEPROM 




Begin 

address 


1 1=write W (Pulse) 


Registers 

per Point 

0=off 

1=on 

(default=0) 

0=off 

1=on 

(default=0) 

Value 

R/W/E 

R/W/E 

Access 


111 1 

112 1 




number) 

Type 

1 8 R 

1 8 R



(Base 0) 

00000 

00001 

00002 

00003 

00004 

00005 

DO Channel 

(Base 0) 

DO Channel 

(Base 0) 

10006 

10007 

5 4 3 2 1 0 

6 7 





Begin 

address 


Registers 

per Point 

Range 



Access 

Type 


231 1 

232 1 


EEPROM 

Write DO Safe value to 

EEPROM 




Begin 

address 




Registers 

per Point 

0=off 

1=on 

(default=0) 

0=off 

1=on 

(default=0) 

Value 

R/W/E 

R/W/E 

Access 


111 1 

112 1 




number) 

Type 

1 8 R 

1 8 R

5. MiniOS7 Utility Tool 

MiniOS7 Utility is a tool for uploading firmware to flash memory and updating the OS 

to ET-7000/PET-7000 module embedded with ICP DAS MiniOS7 with easiness and 

quickness. 

If you don‘t have the MiniOS7 Utility installed on your system, installation of the 

MiniOS7 Utility should be the first step. Please refer to section ―2.4. Installing the 

MiniOS7 Utility‖ to install it. 

5.1. Establishing a Connection 

To upload firmware or update the OS to ET-7000/PET-7000 module, you must first 

establish a connection between PC and the ET-7000/PET-7000 module. 

Step 1: Run the MiniOS7 Utility 

Double-click the MiniOS7 Utility shortcut on your desktop. 



Step 2: Press “F12” or choose “Search” from the “Connection” 

menu 

After pressing F12 or choosing Search from Connection menu, that will 

search all of the MiniOS7 modules on your network. 

See the status tip, waiting 

for the search to be done. 

Step 3: Double-Click the field of your ET-7000/PET-7000 module 

Double-Click the field of 

your ET-7000/PET-7000 

module in the list to connect 

to your ET-7000/PET-7000. 



Step 4: The connection has ready been established 

Check the connection status in the top right side to make sure the connection 

has been established 

Connection Status 

Disconnected 

Connected 



5.2. Exchanging the Protocol (TCP/IP to UDP) 

MiniOS7 Utility supports both UDP and TCP protocols. 

For MiniOS7 Utility, the TCP/IP is the default protocol for communicating with 

ET-7000/PET-7000, and the UDP is used to update the OS. Therefore, if you want to 

update the OS, you might need to change protocols to support them. 

Step 1: Establish a connection to ET-7000/PET-7000 

For more detailed about this process, please refer to section ―5.1. Establishing 

a Connection‖ to establish a connection. 

Step 2: Right Click the file list of the right side window, and then 

choose “Quit Firmware” to stop the firmware running 

Right click the file list of the right side windows, and then choose Quit 

Firmware to stop the firmware running and exchange TCP/IP protocol to UDP 

protocol. 

Right Click the file list 

Step 3: 

Click “Yes” to continue 



After executing the Quick Firmware command, the Confirm dialog will appear, 

and then click Yes button to continue and stop the firmware running. 

Step 4: Click “Yes” to continue 

After confirming the command, the Confirm dialog will appear, and then click 

Yes button to exchange UDP protocol for TCP protocol. 

Step 5: The changes have been affected 



5.3. Updating the ET-7000/PET-7000 OS 

ICP DAS will continue to add additional features to ET-7000/PET-7000 OS in the 

future, so we advise you to periodically check the ICP DAS web site for the latest 

updates. 

Step 1: Get the latest version of the MiniOS7 OS image 

The latest version of the MiniOS7 OS image can be obtained from: 

CD:\NAPDOS\ET7000\OS_image\ 

ET7K_UDP_YYYYMMDD.img 

http://ftp.icpdas.com/pub/cd/6000cd/napdos/et7000/os_image/ 



Step 2: Turn the switch to “Init” position 

Turn the Init/Normal switch to Init position. 




Step 4: Exchange the protocol 

For more detailed about this process, please refer to section ―5.2. Exchanging 

the Protocol (TCP/IP to UDP)‖ to exchange the protocol. 

Init 



Step 5: Choose “Update MiniOS7 Image” from the “File” menu 

After exchanging the protocol, then choose Update MiniOS7 Image from File 

menu to start the update procedure. 



Step 6: Select the latest version of the MiniOS7 OS image 

After choosing the update MiniOS7 Image command, the Select MiniOS7 

Image file will appear, and then select the latest version of the MiniOS7 OS 

image. 

Step 7: Click “OK” to finish the procedure 

After confirming the command, you just need to wait awhile until the following 

dialog appear, and then click OK button to finish the procedure. 



Step 8: Restart the MiniOS7 Utility, and then exchange the protocol 

to UDP 

You may need to restart the MiniOS7 Utility for refreshing the settings, and 

then exchanging the protocol to UPD 

For more detailed about this process, please refer to section ―5.2. Exchanging 

the Protocol (TCP/IP to UDP)‖ to exchange the protocol. 

Step 9: Press “F7” or choose “Info” from the “Command” menu to 

check the OS version 

After pressing F7 or choosing info from Command menu to check the OS 

version. 

Check the Build item 



5.4. Uploading the ET-7000/PET-7000 Firmware 

The firmware is stored in flash memory and can be updated to fix functionality issues 

or add additional features, so we advise you to periodically check the ICP DAS web 

site for the latest updates. 

Step 1: Get the latest version of the MiniOS7 firmware and the 

autoexec.bat file 

The latest version of the MiniOS7 firmware and autoexec.bat file can be 

obtained from: 

CD:\NAPDOS\ET7000\Firmware\ 

ET7026_VXXX.HEX 

http://ftp.icpdas.com/pub/cd/6000cd/napdos/et7000/Firmware/ 



Step 2: Turn the switch to “Init” position 

Turn the Init/Normal switch to Init position. 




Init 



Step 4: Choose “Erase Disk” from the “Command” menu 

After establishing a connection, then choose Erase Disk from Command 

menu to erase the contents of the flash memory. 


You have to delete all files existed on the ET-7000/PET-7000 before 

uploading the firmware. 



Step 5: Click “Yes” to continue 

After executing the Erase Disk command, the Confirm dialog will appear, and 

then click Yes button to continue erasing the memory contents. 

Step 6: Select the latest version of the MiniOS7 firmware and 

autoexec.bat file 

After confirming the command, all files of the ET-7000/PET-7000 will be 

deleted Select MiniOS7 Image file will appear, and then select the latest 

version of the MiniOS7 OS image. 

Drag-and-Drop 

Step 7: Click OK to finish and restart the MiniOS7 Utility 



After confirming the command, you just need to wait awhile until the following 

dialog appear, and then click OK button to finish the procedure. 



6. External Tools and Tasks 

6.1. LabVIEW 

LabVIEW is the best way to acquire, analyze, and present data. LabVIEW delivers a 

graphical development environment that can be used to quickly build data acquisition 

quickly, instrumentation and control systems, boosting productivity and saving 

development time. With LabVIEW, it is possible to quickly create user interfaces that 

enable interactive control of software systems. To specify your system functionality, 

simply assemble block diagram – a natural design notation for scientists and 

engineers. 

The document containing the detailed instructions for linking to the 

ET-7000/PET-7000 using the Modbus protocol is located on the shipped 

CD:\NAPDOS\PET7000_ET7000\Document\Application\LabVIEW\ or 

ftp://ftp.icpdas.com/pub/cd/6000cd/napdos/pet7000_et7000/document/application/lab 

view/ 



6.2. OPC Server 

OPC (OLE for Process Control) is the first standard resulting from the collaboration of 

a number of leading worldwide automation suppliers working in cooperation with 

Microsoft. Originally based on Microsoft's OLE COM (Component Object Model) and 

DCOM (Distributed Component Object Model) technologies, the specification defines 

a standard set of objects, interfaces and methods for use in process control and 

manufacturing automation applications to facilitate interoperability. 

There are many different mechanisms provided by various vendors that allow access 

to a variety of devices via specific applications. However, if an OPC server is provided 

for the device, other applications will be able to access the OPC Server via the OPC 

interface. 



6.3. SCADA 

SCADA stands for Supervisor Control and Data Acquisition. It is a production 

automation and control system based on PCs 

SCADA is wildly used in many fields e.g. power generation, water systems, the oil 

industry, chemistry, the automobile industry. Different fields require different functions, 

but they all have the common features: 

� Graphic interface 

� Process mimicking 

� Real time and historic trend data 

� Alarm system 

� Data acquisition and recording 

� Data analysis 

� Report generator 

� Accessing ET-7000/PET-7000 module 

SCADA software is able to access ET-7000/PET-7000 devices using Modbus 

communication protocols, and can communicate without the need for other 

software drivers. 

� Famous SCADA software 

Citect, ICONICS, iFIX, InduSoft, Intouch, Entivity Studio, Entivity Live, Entivity 

VLC, Trace Mode, Wizcon, Wonderware ... etc 

In the following sections 3 popular brands of SCADA software are introduced 

together with the detailed instructions in how use them to communicate with 

ET-7000/PET-7000 series module using the Modbus/TCP protocol. 



6.3.1. InduSoft 

InduSoft Web Studio is a powerful, integrated 

collection of automation tools that includes all 

the building blocks needed to develop modern 

Human Machine Interfaces (HMI), Supervisory 

Control and Data Acquisition (SCADA) 

systems, and embedded instrumentation and 

control applications. InduSoft Web 

Studio‘s application runs in native 

Windows NT, 2000, XP, CE and 

CE .NET environments and 

conforms to industry standards 

such as Microsoft .NET, OPC, DDE, 

ODBC, XML, and ActiveX. 

The document containing detailed instructions for linking to the ET-7000/PET-7000 

module using the Modbus protocol is located on the shipped 

CD:\NAPDOS\PET7000_ET7000\Document\Application\InduSoft\ 

ftp://ftp.icpdas.com/pub/cd/6000cd/napdos/pet7000_et7000/document/application/ind 

usoft/ 



6.3.2. Citect 

CitectSCADA is a fully integrated 

Human Machine Interface (HMI) / 

SCADA solution that enables 

users to increase return on assets 

by delivering a highly scalable, 

reliable control and monitoring 

system. Easy-to-use configuration 

tools and powerful features enable 

rapid development and 

deployment of solutions for any 

size application. 



CD:\NAPDOS\PET7000_ET7000\Document\Application\Citect\ 

ftp://ftp.icpdas.com/pub/cd/6000cd/napdos/pet-7000_et7000/document/application/cit 

ect/ 



6.3.3. iFix 



CD:\NAPDOS\PET7000_ET7000\Document\Application\iFix\ 

ftp://ftp.icpdas.com/pub/cd/6000cd/napdos/pet7000_et7000/document/application/ifix 

/ 



Appendix A. Node Information Area 

Each ET-7000/PET-7000 module has a built-in EEPROM to store configuration 

information such as IP address, type code, etc. One minor drawback is that there are 

no visual indications of the configuration of the module. New ET-7000/PET-7000 

modules include node information areas that are protected by a cover, as shown 

below, and can be used to make a written record of the node information, such as IP 

address, etc. To access the node information areas, first slide the covers outward, as 

shown in the figure below. 



Appendix B. Modbus Application Notes 

B.1. Dual Watchdog 

Dual Watchdog consists of Module Watchdog and Host Watchdog. 

1. The Module Watchdog is a built-in hardware circuit that will reset the CPU module if 

a failure occurs in either the hardware or the software. If the application does not 

refresh the watchdog timer within 0.8 seconds, the watchdog circuit will initiate a 

reset of the CPU. 

2. The Host Watchdog is a 

software function that can 

be used to monitor the 

operating status of the 

host. Its purpose is to 

prevent network 

communication problems 

or a host failure. If the 

Watchdog timeout interval 

expires, the module will 

return all outputs to a 

predefined Safe value 

(Refer to the Safe Value 

application note), which 

can prevent the controlled 

target from unexpected 

situation. 

AO address 40557 of the ET-7000/PET-7000 series Modbus register is the address of 

the Host Watchdog timer, and will be stored into EEPROM. The WDT function will be 

disabled if the value is set to less than 5 seconds. 



B.2. Power ON Value 

If the ET-7000/PET-7000 series module is reset, the output of the module is set to the 

predefined Power ON Value for the DO and AO channels. DO address 00435 of the 

ET-7000/PET-7000 series Modbus register is the first address of the Power ON value, 

and the total number of channels depend on the type of module. 

For example: 

Addresses 00435 to 00438 records the Power ON value for the 4-Channel 

ET-7017/PET-7017. 

Be careful to set the ON value to DO address 00431 to write the DO Power ON value 

to the EEPROM of the ET-7000/PET-7000 DO module after using Modbus commands 

(05 or 15) to change the Power ON value. 

Configuration via Web page 

Browse to the homepage of the ET-7000/PET-7000, and click the ―Modbus I/O 

Settings‖ link in the Configuration Section of the Main Menu tree. 

Click the ON/OFF radio box to set the power ON/OFF value and then click the button 

to enable the settings to take effect. 



B.3. Safe Value 

If the time of the Host PC losing Modbus/TCP communication with the module is 

greater than the host WatchDog timer setting (called WDT timeout), the output of the 

Digital and Analog channels is set to the Safe Value, and the count of the host WDT 

events is increased by one. 

AO address 40558 is the address of the Host WDT events. The value of the WDT 

events will be not stored into EEPROM, and will return to 0 after the module is 

rebooted. DO address 00515 is the first address of the Safe value and the total 

number of channels depends on the type of module. 

For example: 

Address 00515 to 00518 records the Safe value for the 4-Channel 

ET-7017/PET-7017. 

Be careful to set the ON value to DO address 00432 to write the DO Safe value to the 

EEPROM of the ET-7000/PET-7000 DO module after using Modbus commands (05 or 

15) to change the Power ON value. 

While the WDT timeout is set, the module can also receive the Modbus/TCP 

commands (05, 06, 15 and 16) to change the DO or AO value without needing to clear 

the host watchdog timeout value. 




Click the ON/OFF radio box to set the Safe value and then click the button 

to enable the settings to take effect. 



B.4. AI High/Low Alarm 

ET-7017/PET-7017 and ET-7017-10 module equip with the High/Low Alarm function. 

When the alarm function is enabled, the specified registers are the alarm indicator. 

The alarm function is to compare the analog input value with given high alarm value 

and low alarm value. 

Address 00636 to 00667 can be used to enable/disable the AI High Alarm function. 

Address 00668 to 00699 can be used enable/disable the AI Low Alarm function. 

� ET-7017/PET-7017 AI High/Low Alarm Switch Table 

Channel 

Number 

AI High Alarm AI Low Alarm 

Register Description Register Description 

AI0 00636 0: Disable/1: Enable 00668 0: Disable/1: Enable 












Address 40296 to 40327 records the High Alarm value. Address 40328 to 40359 

records the Low Alarm value. By the default, the High Alarm value is 32767 and the 

Low Alarm value is -32768. 

� ET-7017/PET-7017 AI High/Low Alarm Value Table 

Channel 

Number 

High Alarm Value of AI Low Alarm Value of AI 


AI0 40296 -32768 ~ 32767 40328 -32768 ~ 32767 

AI1 40297 -32768 ~ 32767 40329 -32768 ~ 32767 

AI2 40298 -32768 ~ 32767 40330 -32768 ~ 32767 

AI3 40299 -32768 ~ 32767 40331 -32768 ~ 32767 

AI4 40270 -32768 ~ 32767 40332 -32768 ~ 32767 

AI5 40271 -32768 ~ 32767 40333 -32768 ~ 32767 

AI6 40272 -32768 ~ 32767 40334 -32768 ~ 32767 

AI7 40273 -32768 ~ 32767 40335 -32768 ~ 32767 

AI8 40274 -32768 ~ 32767 40336 -32768 ~ 32767 

AI9 40275 -32768 ~ 32767 40337 -32768 ~ 32767 



The analog input High/Low Alarm contains two alarm types, Momentary Alarm and 

Latch Alarm. Address 00700 of Modbus register can be used to set the High Alarm 

type of channel 0 and the total number of channels depends on the type of module. 

Address 00732 of Modbus register can be used to set the Low Alarm type of channel 

0. 

� ET-7017/PET-7017 AI High/Low Type Value Table 

Channel 

Number 

AI0 00700 

AI1 00701 

AI2 00702 

AI3 00703 

AI4 00704 

AI5 00705 

AI6 00706 

AI7 00707 

AI8 00708 

AI9 00709 

AI High Alarm Type AI Low Alarm Type 


0: Momentary Alarm 

1: Latch Alarm 



















00732 

The following are the descriptions for two alarm types. 

00733 

00734 

00735 

00736 

00737 

00738 

00739 

00740 

00741 























� Momentary Alarm 

The alarm status is cleared while the analog input is not exceeding the alarm value. 

For example: 

If analog input value of channel 0 (30001) > High Alarm value (40296), the address 

00764 is 1, else it is 0. 

If analog input Value of channel 0 (30001) < Low Alarm value (40328), the address 

00796 is 1, else it is 0. 

The address 00764 to 00795 is the High alarm indicator. If a High alarm occurred, 

the value of register is 1. In normal condition, it will be 0. The address 00796 to 

00827 is the Low alarm indicator. If a Low alarm occurred, the value of register is 1. 

In normal condition, it will be 0. 

� Latch Alarm 

When the Latch Alarm mode is enabled, the register stays latched until the specified 

registers are cleared. 

For example: 

If analog input value of channel 0 (30001) > High Alarm value (40296), the address 

00764 is 1, else if analog input value of channel 0 (30001) < Low Alarm value 

(40328), the address 00796 is 1. 

The address 00764 to 00795 is the High alarm indicator. In normal condition, the 

value of register is 0. If a High alarm occurred, the value of register stays 1 until the 

address 00764 to 00795 is cleared. The address 00796 to 00827 is the Low alarm 

indicator. In normal condition, the value of register is 0. If a Low alarm occurred, the 

value of register stays 1 until the address 00796 to 00827 is cleared. 

The address 00764 to 00795 can be used to clear the High Latch Alarm. The 

address 00796 to 00827 can be used to clear the Low Latch Alarm. 






View the Power ON/Safe Value via Web page 

Click the ―Web HMI‖ link in the Web HMI Section of the Main Menu tree. 



B.5. AI High/Low Latch 

The address 30236 to 30267 records the maximum value of analog inputs and stays 

the value until another maximum input enters. The address 30268 to 30299 records 

the minimum value of analog inputs and stays the value until another minimum input 

enters. 

View the Power ON/Safe Value via Web page 

Click the ―Web HMI‖ link in the Web HMI Section of the Main Menu tree. 

Moving average value of one AI channel 

AI 

VAve_n=(Vn+Vn-1+Vn-1+Vn-3+…+Vn-6) / 7 (7: 7 records) 

The average value of each AI can be reached on a regular interval when the moving 

average function is enabled. 

For example, a five-item simple moving average would be the sum of the reading 

value of the five most recent reading value, divided by five; a 20-item moving average 

would be the sum of the 20 most recent reading value divided by 20, and so on. Each 

item the most recent reading value is added to the equation and the most distant item 

is dropped off. 

Vn-6 Vn-5 Vn-4 

Vn-3 Vn-2 Vn-1 

Tn-6 Tn-5 Tn-4 Tn-3 Tn-2 Tn-1 Tn 



Vn 

Time

Register Description 

00347 

40059 

Enable the moving value of the AI channels 

0=Disabled 

1=Enabled 

(Default=0) 

Average times for each AI channel 

0 ~ 40 

Address 30144 to 30153 recodes the average value of each AI channel. 

� ET-7017/PET-7017 Average value of one channel Table 

Channel 

Number 


AI0 30144 0 ~65535 or –32768 ~ +32767 

AI1 30145 0 ~65535 or –32768 ~ +32767 

AI2 30146 0 ~65535 or –32768 ~ +32767 

AI3 30147 0 ~65535 or –32768 ~ +32767 

AI4 30148 0 ~65535 or –32768 ~ +32767 

AI5 30149 0 ~65535 or –32768 ~ +32767 

AI6 30150 0 ~65535 or –32768 ~ +32767 

AI7 30151 0 ~65535 or –32768 ~ +32767 

AI8 30152 0 ~65535 or –32768 ~ +32767 

AI9 30153 0 ~65535 or –32768 ~ +32767 



Average value of all AI channel 

The value of all AI channel is obtained on a regular interval. The average of AI 

channels can be reached and then stored in the specified registers. 


00348 

30176 

AI0 

AI1 

AI2 

AIn 

Enable the average value of all enabled channels, High/Low Alarm 

value of all AI average value and Average Latched values. 

0=Disabled 

1=Enabled 

(Default=0) 

Average value of all enabled AI channel. Address 00595~00626 is 

used to enable/disable the AI channel. 

0 ~ 65535 or –32768 ~ +32767 

V0 

T0 

V1 

V2 

Vn 

VAve_all=(V0+V1+V2+V3+…+Vn) / n (n: n records) 



Time 

Time 

Time 

Time

High/Low Alarm of the average value of all AI channels 

The average value of all AI channels also can equip with the alarm function like the AI 

High/Low Alarm. For the detailed description, please refer the AI High/Low Alarm. 


10336 

10337 

40198 

40199 

High alarm for the average value of all AI registers 

0=normal 

1=alarm 

Low alarm for the average value of all AI registers 

0=normal 

1=alarm 

High alarm value for Average value of all AI channels 

0 ~ 65535 or –32768 ~ +32767 

Low alarm value for Average value of all AI channels 

0 ~ 65535 or –32768 ~ +32767 



Appendix C. Troubleshooting 

A number of common problems are easy to diagnose and fix if you know the cause. 

Symptom/Problem Possible cause Solution 

The Run LED doesn‘t light Internal power has failed Return the module for repair. 

The Run LED indicator is 

ON (light), but not flashing. 

Cannot communicate via 

the Ethernet port, but the 

ET-7000/PET-7000 is still 

operating. 

Able to explore the web 

page through port 80 using 

a web browser, but the Web 

HMI and Modbus/TCP 

program cannot access the 

module through port 502. 

The Web HMI and 

Modbus/TCP program can 

access the module through 

port 502, but Web browser 

cannot explore the web 

page through port 80 using 

a web browser. 

The module has possibly 

crashed. 

The IP/Mask/Gateway 

address isn‘t within the IP 

address range of the 

LAN. 

The IP address has 

restricted by the IP filter 

settings 

There are more than 30 

TCP/IP connections. 

Port 502 has been 

restricted by the firewall. 

The Port 502 has 

restricted by the firewall. 

The Web Configuration 

function has been 

disabled. (Shown on the 

Basic Settings page) 

The Web server TCP port 

has been changed from 

port 80 (Shown on the 

Basic Settings page) 

Reboot the module 

Change the 

IP/Mask/Gateway address to 

match the LAN, or ask the 

MIS administrator for 

assistance. 

Check the IP filter setting 

using the Web configuration. 

Reboot the module. 

Consult your MIS 

administrator for assistance. 

Consult your MIS 

administrator for assistance. 

Enable the Web 

Configuration function using 

either the SMMI or the 

console. 

Change the TCP port to 80 

or reconnect the 

ET-7000/PET-7000 using the 

specific TCP port.

ET-7000/PET-7000 DIO Series User Manual - ICP DAS

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