ICPDAS ET-2200 Series User manual

ET-2200 Series Ethernet I/O
Modules User Manual
Ethernet I/O Module Ver. 1.7, Sep. 2023
WARRANTY
All products manufactured by ICP DAS are warranted against
defective materials for a period of one year from the date of
delivery to the original purchaser.
WARNING
ICP DAS assumes no liability for damages consequent to 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,
nor for any infringements of patents or other rights of third
parties resulting from its use.
COPYRIGHT
Copyright © 2023 by ICP DAS. All rights are reserved.
TRADEMARK
Names are used for identification only and may be
registered trademarks of their respective companies.
CONTACT US
If you have any questions, please feel free to contact us via
email at:
[e-mail]

ET-2200 Series Ethernet I/O Modules
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TABLE OF CONTENTS
1. INTRODUCTION ...................................................................................................................6
1.1 Packing List...........................................................................................................................6
1.2 Features................................................................................................................................7
1.3 Application .........................................................................................................................11
2. HARDWARE INFORMATION................................................................................................ 12
2.1 Appearance ........................................................................................................................12
2.2 Specification.......................................................................................................................15
2.3 Wiring Connections............................................................................................................17
2.4 Wiring to the Connector ....................................................................................................18
2.5 Dimensions.........................................................................................................................19
3. GETTING STARTED ............................................................................................................. 24
3.1 Configuring the Operating Mode.......................................................................................24
3.2 Connecting to the Network and the PC .............................................................................25
3.3 Configuring the Network Settings......................................................................................26
3.4 Modbus TCP Testing...........................................................................................................28
4. WEB CONFIGURATION .......................................................................................................30
4.1 Logging into the Web Server..............................................................................................30
4.2 Home..................................................................................................................................32
4.2.1 Home – DI/DO .....................................................................................................32
4.2.2 Home – AI............................................................................................................33
4.2.3 Home – AO ..........................................................................................................34
4.3 Network..............................................................................................................................35
4.3.1 IP Address Configuration.....................................................................................35
4.3.2 General Settings ..................................................................................................39
4.3.3 Restore Factory Defaults/Firmware Update........................................................40
4.4 I/O Settings.........................................................................................................................43
4.4.1 DO Control...........................................................................................................43
4.4.2 DI/DO Configuration............................................................................................44
4.4.3 Analog Input Configuration.................................................................................47
4.4.4 AI - Calibration.....................................................................................................48
4.4.5 AI - RTC ................................................................................................................50
4.4.6 AI - Data Logger...................................................................................................50

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4.4.7 Analog Output Configuration ..............................................................................52
4.4.8 AO - Calibration ...................................................................................................53
4.5 Sync ....................................................................................................................................56
4.5.1 DIO Synchronization............................................................................................56
4.6PWM...................................................................................................................................58
4.6.1 PWM Configuration.............................................................................................58
4.7 Pair Connection..................................................................................................................59
4.7.1 I/O Pair-Connection Settings...............................................................................59
4.8 Filter ...................................................................................................................................62
4.8.1 Filter Settings.......................................................................................................62
4.9 Monitor ..............................................................................................................................63
4.10 Change Password ...............................................................................................................64
4.11 Logout ................................................................................................................................65
4.12 MQTT..................................................................................................................................66
4.12.1 Connectivity Settings...........................................................................................67
4.12.2 Publication Settings.............................................................................................69
4.12.3 Restore Factory Defaults .....................................................................................70
4.13 MQTT-DO............................................................................................................................71
4.13.1 MQTT – Digital Outputs.......................................................................................72
4.13.2 Readbacks of the Digital Outputs........................................................................73
4.14 MQTT-DI .............................................................................................................................74
4.14.1 MQTT – Digital Inputs..........................................................................................75
4.15 MQTT-AI .............................................................................................................................76
4.16 MQTT- Realization ..............................................................................................................77
4.16.1 Set up Mosquitto.................................................................................................77
4.16.2 MQTTX Instructions.............................................................................................83
4.16.3 MQTT - DO Example............................................................................................85
MQTT DO – Subscribe.......................................................................................85
MQTT DO – Power on Publish...........................................................................87
MQTT DO – State Change Publish.....................................................................90
MQTT DO – Periodic Publish.............................................................................92
4.16.4 MQTT - DI Example..............................................................................................94
MQTT DI – State Change Publish ......................................................................94
MQTT DI – Periodic Publish...............................................................................97
4.17 SNMP................................................................................................................................100
4.17.1 SNMP Agent Configuration................................................................................101

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4.17.2 SNMP Specific Trap............................................................................................102
4.17.3 SNMP I/O Example ............................................................................................104
4.17.4 SNMP Trap Example ..........................................................................................109
4.17.5 SNMP Problem Solving......................................................................................111
5. I/O PAIR CONNECTION APPLICATIONS.............................................................................. 113
5.1 Set a Single Module to Pull/Push Mode (DI/DO).............................................................113
5.1.1 Pull Mode ..........................................................................................................115
5.1.2 Push Mode.........................................................................................................116
5.2 Set Two Modules to Push Mode (Local DI to Remote DO) ..............................................117
5.3 Set Two Modules to Pull Mode (Remote DI to 2-Local DO).............................................120
5.4 Set Two Modules to Push Mode (2-Local DI to Remote DO)...........................................123
5.5 Shared Memory................................................................................................................126
5.5.1 Address Mapping for Shared Memory..............................................................127
5.5.2 Application of spreading the load (DIO)............................................................128
5.5.3 Example of Using Memory AIO .........................................................................130
5.5.4 Master/Slave/MTCP/MUDP Data Exchange......................................................132
5.5.5 Bits / Registers Data Exchange ..........................................................................133
6. MODBUS INFORMATION.................................................................................................. 134
6.1 What is Modbus TCP/IP?..................................................................................................134
6.2 Modbus Message Structure.............................................................................................135
6.2.1 01(0x01) Read the Status of the Coils (Read DO Readback values)...............138
6.2.2 02(0x02) Read the Status of the Input (Read DI values) ...................................140
6.2.3 03(0x03) Read the Holding Registers (Read AO Readback values ) ...............142
6.2.4 04(0x04) Read the Input Registers (Read AI values) .........................................144
6.2.5 05(0x05) Force a Single Coil (Write DO value) ..................................................146
6.2.6 06(0x06) Set a Single Register (Write AO value) ...............................................148
6.2.7 15(0x0F) Force Multiple Coils (Write DO values) ..............................................150
6.2.8 16(0x10) Set Multiple Registers (Write AO values) ...........................................152
6.3 Modbus Register Table (For DIO Module)........................................................................154
6.3.1 Common Functions ...........................................................................................154
6.3.2 Specific Functions..............................................................................................156
6.4 Modbus Register Table (For AIO Module)........................................................................160
6.4.1 Modbus Register Table for (P)ET-2217 ..............................................................160
6.4.2 Modbus Register Table for ET-2217CI................................................................163
6.4.3 Modbus Register Table for (P)ET-2224/2228.....................................................166

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6.5 Analog Input Type and Data Format Table.......................................................................169
APPENDIX A: TROUBLESHOOTING .......................................................................................... 170
A.1 How can I Factory Reset the Module (Password: Admin)?..............................................170
A.2 How to update the firmware via Ethernet?.....................................................................172
A.3 Why is the Host computer unable to ping or search for the ET-2200 module? ..............175
A.4 What is Digital-Input Filter (DI Filter)?.............................................................................176
APPENDIX B: REVISION HISTORY............................................................................................. 177

ET-2200 Series Ethernet I/O Modules
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1. Introduction
The ET-2200 series modules, an IP-based Ethernet I/O module, feature a built-in web server that
allows configuration, I/O monitoring, and I/O control by simply using a regular web browser. In
addition, the ET-2200 also supports Modbus TCP/UDP protocol that makes perfect integration to
SCADA software.
1.1 Packing List
The shipping package includes the following items:
Quick Start x 1
ET-2200 Module x 1
Note:
If any of these items are missing or damaged,
please contact the local distributor for more
information. Save the shipping materials and
cartons in case you need to ship the module in
the future.

ET-2200 Series Ethernet I/O Modules
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1.2 Features
Built-in Web Server
The ET-2200 series module has a built-in web server
that allows users to easily configure, monitor, and
control the module from a remote location using a
web browser.
Modbus TCP/UDP, MQTT, or SNMP Protocols
The Modbus TCP and Modbus UDP slave functions on
the Ethernet port can be used to provide data to remote SCADA software. All DI/DO modules
and some AI/AO modules support MQTT and SNMP V2c protocols.
I/O Pair Connection (Push and Pull)
This function is used to create a DI to DO pair through
the Ethernet. Once the configuration is completed, the
ET-2200 module can continuously pull the status of the
remote DI device using the Modbus TCP protocol and
then write to local DO channels in the background.
Slim-Type Housing
The ET-2200 modules are slim-type housing with about 3.3 cm in width. Compared with the palm-
size module that has about 7 cm in width, more slim-type ET-2200 modules can be installed on the
same DIN-Rail space.
3.3 cm
7 cm

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Built-in Multi-function I/O
The DO modules support these functions:
Power-on Value: On boot up, the DO value will be set to the Power-on value.
Safe Value:
If Modbus TCP communication is lost for a specific period, the DO value will be set to the user-
defined safe value.
A PWM (Pulse-Width Modulation) Function:
Each of DO channel can be set to a different frequency (100 Hz Max.) and duty cycle, also work
either independently or simultaneously. The term “High Duty Cycle” describes the duration of
'ON' time in proportion to the regular interval or 'period' of time. Similarly, the term “Low Duty
Cycle” corresponds to the duration of the 'OFF' time. Consequently, it is not necessary to keep
switching from ON to OFF from remote a controller. In this way, the module reduces the
complexity required for the control system and enhances timing accuracy.
Note: Because of the characteristics of the relay functions, it is recommended that the PWM
on modules with relay functions is not used for extended periods.
The DI modules support these functions:
Can be Used as a 32-bit High Speed Counter
High/Low Latched Status Commands:
The modules provide commands to read the status of any
digital input channels that are latched high or latched low. The
following is an example that shows the usefulness of the
latched digital input. If we wish to read a key stroke from a key
switch connected to the digital input channel of a module, the
input signal of the key stroke is a pulse signal as shown in the figure.
If we just use the read digital input status command to read the signal and we cannot send the
command during the B period due to some reasons, then we will lose the key stroke information.
However, with the read latched digital input command, we can still get the key stroke
information even we are not able to send command in B period.
Frequency Measurement:
This function can be used to retrieve the digital input counter value at specific times and
calculates the frequency. Rather than polling via a remote host, the module can determine the
frequency directly, reducing the communication delay caused by two ends and also improves
the accuracy of the frequency measurement. In order to applying for more applications, this
module provides 3 scan modes and 4 moving average methods for user to select the best way
in their applications.

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DIO Synchronization (Mirror Local DI to DO):
The module also provide a DIO synchronization function. The DIO synchronization is divided into
three modes: Level Sync, Rising Active, and Falling Active.
Level Sync (DO = DI) Mode:
The synchronization operation in DI and DO.
Rising Active (DO = ON) Mode:
When the specified DI state is from OFF to ON, the corresponding DO will be set to ON.
Falling Active (DO = ON) Mode:
When the specified DI state is from ON to OFF, the corresponding DO will be set to ON.
Built-in Dual Watchdog
The Dual Watchdog consists of a CPU Watchdog (for hardware functions)
and a Host Watchdog (for software functions).
CPU Watchdog automatically resets itself when the built-in firmware
runs abnormally.
Host Watchdog set the digital output with a predefined safe value
when there is no communication between the module and host (PC or PLC)
over a while (Watchdog timeout).
DI
DO
DI
DO
DI
DO

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Daisy-chain Ethernet Cabling
The ET-2200 has a built-in two-port Ethernet switch to implement daisy-chain topology. The
cabling is much easier and the total costs of cable and switch are significantly reduced.
LAN Bypass
LAN Bypass feature guarantees Ethernet
communication. It will automatically be
active to continue the network traffic when
the ET-2200 loses its power.
Highly Reliable Under Harsh Environment
Wide Operating Temperature Range: -25 ~ +75°C
Storage Temperature: -40 ~ +80°C
Humidity 10 ~ 90% RH (Non-condensing)