ICP DAS USA ET-2200 Series User manual

ET-2200 Series Ethernet I/O
Modules User Manual
Ethernet I/O Module Ver. 1.5.0, Jun. 2020
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 © 2020 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:
[email protected]
SUPPORT
This manual relates to the following
modules:
ET-2242, ET-2242U, ET-2251, ET-2254,
ET-2254P, ET-2255, ET-2255U, ET-2260,
ET-2261, ET-2261-16 and ET-2268

ET-2200 Series Ethernet I/O Modules
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TABLE OF CONTENTS
1. INTRODUCTION ................................................................................................................................................... 5
1.1 PACKING LIST .........................................................................................................................................................5
1.2 FEATURES..............................................................................................................................................................6
2. HARDWARE INFORMATION ............................................................................................................................... 10
2.1 APPEARANCE .......................................................................................................................................................10
2.2 SPECIFICATION .....................................................................................................................................................12
2.2.1 System Specification ......................................................................................................................................... 12
2.2.2 I/O Specification ............................................................................................................................................... 13
ET-2242/ET-2242U...................................................................................................................................................................13
ET-2251....................................................................................................................................................................................13
ET-2254/2254P........................................................................................................................................................................14
ET-2255/ET-2255U...................................................................................................................................................................15
ET-2260....................................................................................................................................................................................16
ET-2261/2261-16.....................................................................................................................................................................17
ET-2268....................................................................................................................................................................................18
2.3 PIN ASSIGNMENTS................................................................................................................................................19
ET-2242/ET-2242U .................................................................................................................................................... 19
ET-2251 ..................................................................................................................................................................... 20
ET-2254/2254P.......................................................................................................................................................... 20
ET-2255/ET-2255U .................................................................................................................................................... 21
ET-2260 ..................................................................................................................................................................... 22
ET-2261 ..................................................................................................................................................................... 22
ET-2261-16 ................................................................................................................................................................ 23
ET-2268 ..................................................................................................................................................................... 23
2.4 WIRING CONNECTIONS..........................................................................................................................................24
Input Wiring .............................................................................................................................................................. 24
Output Wiring ........................................................................................................................................................... 25
2.5 WIRING TO THE CONNECTOR...................................................................................................................................27
2.6 DIMENSIONS........................................................................................................................................................28
3. GETTING STARTED ............................................................................................................................................. 30
3.1 CONFIGURING THE BOOT MODE.............................................................................................................................. 30
3.2 CONNECTING THE POWER AND THE HOST PC.............................................................................................................31
3.3 CONFIGURING THE NETWORK SETTINGS.................................................................................................................... 32

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3.4 MODBUS TCP TESTING..........................................................................................................................................34
4. WEB CONFIGURATION....................................................................................................................................... 36
4.1 LOGGING IN TO THE WEB SERVER ............................................................................................................................36
4.2 HOME ................................................................................................................................................................38
4.3 NETWORK ...........................................................................................................................................................39
IP Address Configuration........................................................................................................................................... 39
Dynamic Configuration............................................................................................................................................................41
Manual Configuration .............................................................................................................................................................41
General Settings ........................................................................................................................................................ 42
Restore Factory Defaults ........................................................................................................................................... 43
Firmware Update ...................................................................................................................................................... 45
4.4 I/O SETTINGS ...................................................................................................................................................... 46
DO Control................................................................................................................................................................. 46
DI/DO Configuration.................................................................................................................................................. 47
4.5 SYNC..................................................................................................................................................................50
DIO Synchronization .................................................................................................................................................. 50
4.6 PWM................................................................................................................................................................52
PWM Configuration................................................................................................................................................... 52
4.7 PAIR CONNECTION ................................................................................................................................................53
I/O Pair-Connection Settings ..................................................................................................................................... 53
4.8 FILTER ................................................................................................................................................................56
Filter Settings............................................................................................................................................................. 56
4.9 MONITOR ...........................................................................................................................................................58
4.10 CHANGE PASSWORD..............................................................................................................................................59
4.11 LOGOUT..............................................................................................................................................................60
4.12 MQTT ...............................................................................................................................................................61
Connectivity Settings ................................................................................................................................................. 62
Publication Settings................................................................................................................................................... 63
Restore Factory Defaults ........................................................................................................................................... 65
4.13 MQTT-DO.........................................................................................................................................................66
MQTT –Digital Outputs............................................................................................................................................. 66
Readbacks of the Digital Outputs.............................................................................................................................. 67
4.14 MQTT-DI ..........................................................................................................................................................69
MQTT –Digital Inputs ............................................................................................................................................... 69
4.15 MQTT- REALIZATION............................................................................................................................................71
Set up Mosquitto ....................................................................................................................................................... 71
Introduction to MQTTLens......................................................................................................................................... 77
ET-2200 Periodic Publish Realization......................................................................................................................... 80

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5. I/O PAIR CONNECTION APPLICATIONS............................................................................................................... 82
5.1 ONE MODULE POLLING THE REMOTE DI/DO (1-TO-1, PULL /PUSH MODE)...................................................................82
Pull Mode .................................................................................................................................................................. 84
Push Mode................................................................................................................................................................. 85
5.2 TWO MODULES PUSHING THE LOCAL DI TO EACH OTHER (1-TO-1, PUSH MODE).............................................................. 86
5.3 SEVERAL MODULES PULLING THE REMOTE DI (M-TO-1) (PULL MODE) ..........................................................................89
5.4 SEVERAL MODULES PUSHING THE LOCAL DI (M-TO-1) (PUSH MODE)............................................................................92
6. MODBUS INFORMATION ................................................................................................................................... 95
6.1 WHAT IS MODBUS TCP/IP? ................................................................................................................................... 95
6.2 MODBUS MESSAGE STRUCTURE ..............................................................................................................................96
01(0x01) Read the Status of the Coils (Read DO Readback vaslues) ......................................................................... 99
02(0x02) Read the Status of the Input (Read DI values).......................................................................................... 101
03(0x03) Read the Holding Registers (Read AO Readback values ) ......................................................................... 103
04(0x04) Read the Input Registers (Read AI values)................................................................................................ 105
05(0x05) Force a Single Coil (Write DO value).........................................................................................................107
06(0x06) Set a Single Register (Write AO value)......................................................................................................109
15(0x0F) Force Multiple Coils (Write DO values) ..................................................................................................... 111
16(0x10) Set Multiple Registers (Write AO values)..................................................................................................113
6.3 MODBUS REGISTER TABLE ....................................................................................................................................115
6.3.1 Common Functions.........................................................................................................................................115
6.3.2Specific Functions ............................................................................................................................................117
APPENDIX A: TROUBLESHOOTING .........................................................................................................................123
HOW DO IRESTORE THE WEB PASSWORD FOR THE MODULE TO THE FACTORY DEFAULT PASSWORD? ...................................................123
APPENDIX B: REVISION HISTORY................................................................................................................................125

ET-2200 Series Ethernet I/O Modules
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1. Introduction
The ET-2200 series modules, a IP-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. 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
1. 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.
2. Support Modbus TCP/UDP Protocols
The Modbus TCP, Modbus UDP slave function on the
Ethernet port can be used to provide data to remote SCADA software.
3. 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,
ET-2200 module can continuously pull the status of
remote DI device using the Modbus TCP protocol and
then write to local DO channels in the background.
4. 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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5. Built-in Multi-function I/O
All Digital Output modules provide:
A Power-on Value (On boot up, the digital output value is set as the Power-on value)
A Safe Value (If Modbus TCP communication is lost for a certain period, the digital output
value will be set as the user-defined safe value)
A PWM Function: The digital output channels support PWM (pulse generation) function
that can be configured with different frequency (100 Hz Max.) and different duty cycle for
each channel. 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 a remote controller. In this way, the ET-2200 series
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 of time.
All Digital Input modules provide:
Digital input channels that can also be used as 32-bit high speed (3 kHz) counters.
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: ET-2200 series modules also provide a
frequency measurement function that retrieves the digital input counter value at specific
times and calculates the frequency. Rather than polling via a remote host, the ET-2200
series modules 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): ET-2200 series modules 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 from OFF to ON, the
corresponding DO will be set to ON.
Falling Active (DO = ON) Mode: When the specified DI state from ON to OFF, the
corresponding DO will be set to ON.
6. 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 it-self when the built-in
firmware runs abnormally.
Host Watchdog set the digital output with predefined safe-value
when there is no communication between the module and host
(PC or PLC) over a period of time (Watchdog timeout).
DI
DO
DI
DO
DI
DO

ET-2200 Series Ethernet I/O Modules
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7. 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 total costs of
cable and switch are
significantly reduced.
8. LAN Bypass
LAN Bypass feature guarantees the Ethernet
communication. It will automatically active to
continue the network traffic when the ET-2200 loses
its power.
9. Highly Reliable Under Harsh Environment
Wide Operating Temperature Range: -25 ~ +75°C
Storage Temperature: -30 ~ +80°C
Humidity 10 ~ 90% RH (Non-condensing)

ET-2200 Series Ethernet I/O Modules
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2. Hardware Information
2.1 Appearance
The front panel and top panel of the ET-2200 module contain the I/O connector, LEDs, Ethernet Port
and power connector.
1.
PWR LED Indicator
Once power is supplied to the ET-2200 series module, the system LED indicator will illuminate.
2.
I/O Indicator
The exact design and functionality depends on the module type which indicates the I/O status.
Front Panel
Top Panel
1. PWR LED Indicator
2. I/O Indicator
3. I/O Connector
4. DC Power
Input Connector
5. Operating Mode
Switch
6. 2-port Ethernet Switch

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3.
I/O Connector
For more detailed information regarding the pin assignments for the I/O connector, refer to
Section 2.3 “Pin Assignments”.
4.
DC Power Input Connector
The definition for “+Vs” and “GND” for use as the power supply applies to all types of ET-2200
series module.
ET-2242/2251/2254(P)/2255/2260/2261/2268:
The valid power voltage range is from +10 to +30 VDC.
ET-2242U/2255U/2261-16:
The valid power voltage range is from +10 to +48 VDC.
The definition for “F.G.”(Frame Ground):
Electronic circuits are constantly vulnerable to Electrostatic Discharge (ESD), which becomes worse
in a continental climate area. ET-2200 series module feature a new design for the frame ground,
which provides a path that bypasses ESD, resulting in an enhanced ESD protection capability and
ensuring that the module is more reliable.
5.
Operating Mode Switch
Init Mode: Use factory default settings for troubleshooting.
Run Mode:Use customer settings for normal operations.
The operating mode switch is set to the “Run”position by default. Refer to Section 3.1
“Configuring the Boot Mode" for more information.
6.
2-Port Ethernet Switch
The ET-2200 series modules are equipped with two RJ-45 10/100 Base-TX Ethernet switch ports.
When an Ethernet link is detected and an Ethernet packet is received, the Green LED indicator and
the Yellow LED indicator will be illuminated.

ET-2200 Series Ethernet I/O Modules
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2.2 Specification
2.2.1 System Specification
Model
ET-2242
ET-2251
ET-2254(P)
ET-2255
ET-2260
ET-2261
ET-2268
ET-2261
-16
ET-2242U
ET-2255U
System
CPU
32-bit ARM
Communication
Ethernet Port
2 x RJ-45, 10/100 Base-Tx, switch Ports
Protocol
Modbus TCP, Modbus UDP
Security
Password and IP Filter
I/O Pair Connection
Yes (Push, Pull)
Dual Watchdog
Yes, Module, Communication (Configurable)
LAN Bypass
Yes
LED Indicators
System Running
Yes
Ethernet Link/Act
Yes
DI/DO status
Yes
2-Way Isolation
Ethernet (Units: VDC)
1500
I/O (Units: VDC)
3000
3750
3000
3750
3750
3000
3750
3000
3750
EMS Protection
ESD (IEC 61000-4-2)
±8 kV Contact for Each Terminal and
±16 kV Air for Random Point
±8 kV Contact for Each
Terminal and
±15 kV Air for Random
Point
EFT (IEC 61000-4-4)
±4 kV for Power Line
Surge
(IEC 61000-4-5)
±3 kV for Power Line
±2 kV for Power Line
Power
Reverse Polarity
Protection
Yes
Powered from
Terminal Block
+10 ~ +30 VDC
+10 ~ +48 VDC
Consumption
24
VDC
3.2 W
(Max.)
2.9 W
(Max.)
3.3 W
(Max.)
2.9 W
(Max.)
3.3 W
(Max.)
3.3 W
(Max.)
2.9 W
(Max.)
4.32 W
(Max.)
2.3 W
(Max.)
2.3 W
(Max.)
48
VDC
-
-
-
-
-
-
-
4.71 W
(Max.)
2.6 W
(Max.)
2.7 W
(Max.)
Mechanical
Dimensions
(L x W x H)
127 mm x 33 mm x 99 mm for ET-2242(U)/2251/2254(P)/2255(U)/2260/2261/2268
157 mm x 31 mm x 129 mm for only ET-2261-16
Installation
DIN-Rail Mounting
Environment
Operating
Temperature
-25 ~ +75°C
Storage Temperature
-30 ~ +80°C
Humidity
10 ~ 90% RH, Non-condensing

ET-2200 Series Ethernet I/O Modules
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2.2.2 I/O Specification
ET-2242/ET-2242U
Model
ET-2242
ET-2242U
Digital Output
Channels
16
Type
Open collector
Push-Pull
Sink/Source (NPN/PNP)
Sink
Sink/Source
Load Voltage
+3.5 V ~ +50 V
+3.5 V ~ +80 V
Max. Load Current
650 mA/Channel
500 mA/Channel
Overload Protection
1.4 A
(with short-circuit protection)
-
Overvoltage Protection
+60 VDC
-
ET-2251
Model
ET-2251
Digital Input/Counter
Channels
16
Contact
Wet Contact
Sink/Source (NPN/PNP)
Sink/Source
On Voltage Level
+5 VDC ~ +50 VDC
Off Voltage Level
+1 VDC Max.
Input Impedance
7.5kΩ
Counters
Max. Count
4,294,967,295 (32 bits)
Max. Input Frequency
3 kHz
Programmable Digital Filter
1 ~ 6500 ms (0.08 Hz ~ 500 Hz)
Overvoltage Protection
+70 VDC

ET-2200 Series Ethernet I/O Modules
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ET-2254/2254P
Model
ET-2254
ET-2254P
I/O Type
By Wire Connection, Configurable Universal DIO
I/O Channels
16
Digital Input
Type
Dry Contact
Sink/Source (NPN/PNP)
Source
On Voltage Level
Close to GND
Off Voltage Level
Open
Input Impedance
3kΩ, 0.5 W
7.5kΩ, 1 W
Counters
Max. Count
4,294,967,295 (32 bits)
Max. Input Frequency
3 kHz
2.5 kHz
Programmable Digital Filter
1 ~ 6500 ms (0.08 Hz ~ 500 Hz)
Digital Output
Type
Open-collector (Sink)
Max. Load Current
100 mA/channel
400 mA/channel
Load Voltage
+5 VDC to +30 VDC
+5 VDC to +50 VDC
Short Circuit Protection
-
Yes
Power-on Value
Yes, Configurable
Safe Value
Yes, Configurable

ET-2200 Series Ethernet I/O Modules
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ET-2255/ET-2255U
Model
ET-2255
ET-2255U
Digital Input/Counter
Channels
8
Contact
Wet Contact
Sink/Source (NPN/PNP)
Sink/Source
On Voltage Level
+5 VDC ~ +50 VDC
Off Voltage Level
+1 VDC Max.
Input Impedance
7.5kΩ
Counters
Max. Count
4,294,967,295 (32 bits)
Max. Input Frequency
3 kHz
Programmable Digital Filter
1 ~ 6500 ms (0.08 Hz ~ 500 Hz)
Overvoltage Protection
+70 VDC
Digital Output
Channels
8
Type
Open Collector
Push-Pull
Sink/Source (NPN/PNP)
Sink
Sink/Source
Load Voltage
+3.5 V ~ +50 V
+3.5 V ~ +80 V
Max. Load Current
650 mA/Channel
500 mA/Channel
Overload Protection
1.4 A
(with short-circuit protection)
-
Overvoltage Protection
+60 VDC
-

ET-2200 Series Ethernet I/O Modules
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ET-2260
Model
ET-2260
Digital Input/Counter
Channels
6
Contact
Wet Contact
Sink/Source (NPN/PNP)
Sink/Source
On Voltage Level
+5 VDC ~ +50 VDC
Off Voltage Level
+3.5 VDC Max.
Input Impedance
7.5kΩ
Counters
Max. Count
4,294,967,295 (32 bits)
Max. Input Frequency
3 kHz
Programmable Digital Filter
1 ~ 6500 ms (0.08 Hz ~ 500 Hz)
Overvoltage Protection
+70 VDC
Power Relay
Channels
6
Type
Power Relay, Form A (SPST N.O.)
Contact Rating
5 A @ 250 VAC/24 VDC(Resistive Load)
Min. Contact Load
10 mA @ 5 V
Operate Time
10 ms (max.)
Release Time
5 ms (max.)
Mechanical Endurance
2 × 107ops.
Electrical Endurance
105ops.
Power-on Value
Yes, Configurable
Safe Value
Yes, Configurable

ET-2200 Series Ethernet I/O Modules
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ET-2261/2261-16
Model
ET-2261
ET-2261-16
Power Relay
Channels
10
16
Type
Power Relay, Form A (SPST N.O.)
Contact Rating
5 A @ 250 VAC/24 VDC(Resistive Load)
Min. Contact Load
10 mA @ 5 V
Operate Time
10 ms (max.)
Release Time
5 ms (max.)
Mechanical Endurance
2 × 107ops.
Electrical Endurance
105ops.
Power-on Value
Yes, Configurable
Safe Value
Yes, Configurable

ET-2200 Series Ethernet I/O Modules
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ET-2268
Model
ET-2268
Relay Output
Channels
8 (Form A x 4, Form C x 4)
Relay Type
Signal Relay
Form A
Contact Rating
2 A @ 30 VDC
0.24 A @ 220 VDC
0.25 A @ 250 VDC
Min. Contact Load
10 mA @ 20 mV
Contact Material
Siler Nickel, Gold-covered
Operate Time
3 ms (Typical)
Release Time
4ms (Typical)
Mechanical Endurance
108ops
Electrical Endurance
2 x 105ops
Form C
Contact Rating
2 A @ 30 VDC
0.24 A @ 220 VDC
0.25 A @ 250 VDC
Min. Contact Load
10 mA @ 20 mV
Contact Material
Siler Nickel, Gold-covered
Operate Time
3 ms (Typical)
Release Time
4ms (Typical)
Mechanical Endurance
108ops
Electrical Endurance
2 x 105ops
Surge Strength
2000 VDC
Power-on Value
Yes, Configurable
Safe Value
Yes, Configurable

ET-2200 Series Ethernet I/O Modules
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2.3 Pin Assignments
ET-2242/ET-2242U

ET-2200 Series Ethernet I/O Modules
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ET-2251
ET-2254/2254P