ET-2255 CR
Ethernet I/O Module with 2-port Ethernet Switch, 8-ch Digital input and 8-ch Sink-type Digital output
Providing various digital I/O functions, the ET-2255 module is an IP-based Ethernet I/O monitoring and control module. The module can be remotely controlled through a 10/100 M Ethernet network by using Modbus TCP/UDP protocol. Modbus has become a de facto standard communications protocol in industry, and is now the most commonly available means of connecting industrial electronic devices. This makes the ET-2255 module perfect integration with the HMI, SCADA, PLC and other software systems.
The ET-2255 provides 8 wet/dry contact Digital Input channels and 8 sink-type Digital Output channels. With 2 Ethernet ports, the ET-2255 allows daisy chain connection which permits the flexibility in locating devices, eases installation and lowers infrastructure costs. It features optical isolation for 3000 Vrms of transient overvoltage protection but doesn’t provide channel-to-channel isolation. Each input channel can be used as a 32-bit counter and each output channel can drive 650 mA load. The power-on value and safe value of digital output channel are programmable. It can safely be used in applications where hazardous voltages are present. It features 8 kV ESD protection, 4 kV EFT protection, 3 kV surge and 3750 VDC I/O isolation are also provided to enrich the noise protection ability for industrial environment.
The module can be used to create DI to DO pair-connect through the Ethernet. After configuration, the ET-2255 module can poll the status of the local DI channels and then use the Modbus/TCP protocol to continuously write to the remote DO devices.
It is equipped with removable terminal block connector for easy and robust wiring in industrial situations, and features a powerful 32-bit ARM MCU to handle efficient network trafficking.
ET-2255 CR: Ethernet I/O Module with 2-port Ethernet Switch, 8-ch Wet/Dry Contact Digital Input and 8-ch Sink-type Digital Output (RoHS)
- Built-in Web Server
- Support Modbus TCP/UDP Protocols
- Powerful 32-bit MCU Handles Efficient Network Traffic
- 2-port Ethernet Switch (LAN Bypass) for Daisy-Chain Wiring
- Dual Watchdog
- I/O Pair Connection (Push and Polling)
- Supports web configuration and firmware update via Ethernet
- Built-in I/O
- 8 wet/dry contact digital input channels
- 8 sink-type digital output channels
- LED Display to Indicate the I/O status
- Wide Operating Temperature Range: -25 ~ +75 °C
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, Polling)
Dual Watchdog: Yes, Module, Communication (Programmable)
LAN Bypass: Yes
LED Indicators
For System Running: Yes
For Ethernet Link/Ack: Yes
For DI/DO status: Yes
2-way Isolation
Ethernet: 1500 VDC
I/O: 3750 VDC
EMS Protection
ESD (IEC 61000-4-2): ±8 kV Contact for Each Terminal and ±16 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
Power Requirements
Reverse Polarity Protection: Yes
Powered from Terminal Block: +10 ~ +30 VDC
Consumption: 2.9 W (Max.)
Mechanical
Dimensions (L x W x H): 127 mm x 33 mm x 99 mm
Installation: DIN-Rail or Wall mounting
Environmental
Operating Temperature: -25 ~ +75°C
Storage Temperature: -30 ~ +80°C
Humidity: 10 ~ 90% RH, Non-condensing
Digital Input/Counter
Channels: 8
Contact: Wet/Dry 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
Sink/Source (NPN/PNP): Sink
Load Voltage: +3.5 V ~ +50 V
Max. Load Current: 650 mA/Channel
Overload Protection: 1.4 (with short-circuit protection)
Overvoltage Protection: + 60 VDC