ICP DAS USA ET-2217CI User manual

ET-2200 Series Ethernet I/O
Modules User Manual
Ethernet I/O Module Ver. 1.6.0, Oct. 2021
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:
AI:
ET-2217CI-4, ET-2217CI
DI/DO:
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.......................................................................................................................13
2.2.1 System Specification (DIO) ..................................................................................13
2.2.2 DI/DO Specification .............................................................................................14
2.2.3 System Specification (AI) .....................................................................................20
2.2.4 AI Specification....................................................................................................21
2.3 Pin Assignments .................................................................................................................22
2.3.1 ET-2242/ET-2242U...............................................................................................22
2.3.2 ET-2251................................................................................................................23
2.3.3 ET-2254/2254P ....................................................................................................23
2.3.4 ET-2255/ET-2255U...............................................................................................24
2.3.5 ET-2260................................................................................................................25
2.3.6 ET-2261................................................................................................................25
2.3.7 ET-2261-16...........................................................................................................26
2.3.8 ET-2268................................................................................................................26
2.3.9 ET-2217CI/2217CI-4.............................................................................................27
2.4 Wiring Connections............................................................................................................28
2.4.1 Digital Input Wiring .............................................................................................28
2.4.2 Digital Output Wiring ..........................................................................................29
2.4.3 Analog Input Wiring ............................................................................................31
2.5 Wiring to the Connector ....................................................................................................32
2.6 Dimensions.........................................................................................................................33
3. GETTING STARTED .............................................................................................................36
3.1 Configuring the Boot Mode ...............................................................................................36
3.2 Connecting the Power and the Host PC.............................................................................37
3.3 Configuring the Network Settings......................................................................................38
3.4 Modbus TCP Testing...........................................................................................................40
4. WEB CONFIGURATION .......................................................................................................42
4.1 Logging in to the Web Server.............................................................................................42

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4.2 Home..................................................................................................................................44
4.2.1 Home – DI/DO .....................................................................................................44
4.2.2 Home – AI............................................................................................................45
4.3 Network..............................................................................................................................46
4.3.1 IP Address Configuration.....................................................................................46
4.3.2 General Settings ..................................................................................................49
4.3.3 Restore Factory Defaults .....................................................................................50
4.3.4 Firmware Update.................................................................................................52
4.4 I/O Settings.........................................................................................................................53
4.4.1 DO Control...........................................................................................................53
4.4.2 DI/DO Configuration............................................................................................54
4.4.3 Analog Input Channel..........................................................................................57
4.4.4 Analog Input Calibration......................................................................................58
4.4.5 RTC.......................................................................................................................59
4.4.6 Data Logger..........................................................................................................59
4.5 Sync ....................................................................................................................................61
4.5.1 DIO Synchronization............................................................................................61
4.6 PWM...................................................................................................................................63
4.6.1 PWM Configuration.............................................................................................63
4.7 MQTT (AI)...........................................................................................................................64
4.8 Pair Connection..................................................................................................................65
4.8.1 I/O Pair-Connection Settings ...............................................................................65
4.9 Filter ...................................................................................................................................67
4.9.1 Filter Settings.......................................................................................................67
4.10 Monitor ..............................................................................................................................68
4.11 Change Password ...............................................................................................................69
4.12 Logout ................................................................................................................................70
4.13 MQTT..................................................................................................................................71
4.13.1 Connectivity Settings...........................................................................................72
4.13.2 Publication Settings.............................................................................................74
4.13.3 Restore Factory Defaults .....................................................................................75
4.14 MQTT-DO............................................................................................................................76
4.14.1 MQTT – Digital Outputs.......................................................................................76
4.14.2 Readbacks of the Digital Outputs........................................................................78
4.15 MQTT-DI .............................................................................................................................79
4.15.1 MQTT – Digital Inputs..........................................................................................79
4.16 MQTT-AI .............................................................................................................................81
4.17 MQTT- Realization ..............................................................................................................82

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4.17.1 Set up Mosquitto.................................................................................................82
4.17.2 Introduction to MQTTLens ..................................................................................88
4.17.3 ET-2200 Periodic Publish Realization...................................................................91
5. I/O PAIR CONNECTION APPLICATIONS................................................................................93
5.1 One Module Polling the Remote DI/DO (1-to-1, Pull / Push Mode)...............................93
5.1.1 Pull Mode ............................................................................................................95
5.1.2 Push Mode...........................................................................................................96
5.2 Two Modules Pushing the Local DI to each other (1-to-1, Push Mode)............................97
5.3 Several Modules Pulling the Remote DI (M-to-1) (Pull Mode).....................................100
5.4 Several Modules Pushing the Local DI (M-to-1) (Push Mode)......................................103
6. MODBUS INFORMATION.................................................................................................. 106
6.1 What is Modbus TCP/IP?..................................................................................................106
6.2 Modbus Message Structure.............................................................................................107
6.2.1 01(0x01) Read the Status of the Coils (Read DO Readback vaslues) .............110
6.2.2 02(0x02) Read the Status of the Input (Read DI values) ...................................112
6.2.3 03(0x03) Read the Holding Registers (Read AO Readback values ) ...............114
6.2.4 04(0x04) Read the Input Registers (Read AI values) .........................................116
6.2.5 05(0x05) Force a Single Coil (Write DO value) ..................................................118
6.2.6 06(0x06) Set a Single Register (Write AO value) ...............................................120
6.2.7 15(0x0F) Force Multiple Coils (Write DO values) ..............................................122
6.2.8 16(0x10) Set Multiple Registers (Write AO values) ...........................................124
6.3 Modbus Register Table (For DIO Module)........................................................................126
6.3.1 Common Functions ...........................................................................................126
6.3.2 Specific Functions..............................................................................................128
6.4 Modbus Register Table (For AIO Module)........................................................................132
APPENDIX A: TROUBLESHOOTING .......................................................................................... 133
A1. How do I restore the web password for the module to the factory defaults? ................133
A2. How to update the firmware via Ethernet?.....................................................................135
A.3 Why is the Host computer unable to ping or search for the ET-2200 module? ..............138
A.4 What is Digital-Input Filter (DI Filter)?.............................................................................139
APPENDIX B: REVISION HISTORY............................................................................................. 140

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.

ET-2200 Series Ethernet I/O Modules
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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.
PWR LED Indicator
Once power is supplied to the ET-2200 series module, the system LED indicator will illuminate.
I/O Indicator
The exact design and functionality depends on the module type which indicates the I/O status.
Front Panel
PWR LED Indicator
I/O Indicator
DI/DO Module
AI Module
I/O Connector

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I/O Connector
For more detailed information regarding the pin assignments for the I/O connector, refer to
Section 2.3 “Pin Assignments”.
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, ET-2217CI/2217CI-4:
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.
Top Panel
DI/DO Module
AI Module
DC Power Input
Connector
Operating Mode Switch
2-port
Ethernet Switch
Operating
Mode Switch
Housing Metal

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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.
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.

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2.2 Specification
2.2.1 System Specification (DIO)
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
300
0
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

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2.2.2 DI/DO 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
7.5 kΩ
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
3 kΩ, 0.5 W
7.5 kΩ, 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

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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
7.5 kΩ
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
-

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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
7.5 kΩ
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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2.2.3 System Specification (AI)
Model
ET-2217CI-4
ET-2217CI
System
Real Time Clock
Yes
Data Logger
Yes, up to 480,000 records (ET-2217CI-4) and
320,000 records (ET-2217CI)
Communication
Ethernet Port
2 x RJ-45, 10/100 Base-TX, Switch Ports
Protocol
Modbus TCP, Modbus UDP
Security
Password and IP Filter
Dual Watchdog
Yes, Module, Communication (Programmable)
LAN Bypass
Yes
LED Indicators
for System Running
Yes, 1 as Power/Communication Indicator
for Ethernet Link/Act
Yes
2-Way Isolation
Ethernet
1500 VDC
I/O
3000 VDC, Field-to-Logic
3000 VDC, Channel to Channel
EMS Protection
ESD (IEC 61000-4-2)
±4 kV Contact for Each Terminal
±8 kV Air for Random Point
EFT (IEC 61000-4-4)
±4 kV for Power Line
Surge (IEC 61000-4-5)
±2 kV for Power Line
Power
Reverse Polarity Protection
Yes
Powered from Terminal Block
+10 ~ +48 VDC
C onsumption
5.4 W (Max.)
Mechanical
Dimensions (L x W x H)
176 mm x 33 mm x 130 mm
Installation
DIN-Rail Mounting
Casing
Metal
Ingress Protection Rating
IP30
Environment
Operating Temperature
-25 ~ +75°C
Storage Temperature
-30 ~ +80°C
Humidity
10 ~ 90% RH, Non-condensing