ET-2255U CR
Ethernet I/O Module with 2-port Ethernet Switch, 8-ch Digital input and 8-ch Sink/Source-type Digital output
- 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)
- Easy Firmware Update via Ethernet
- LED Display to Indicate the I/O status
- Wide Operating Temperature Range: -25 ~ +75°C
- Built-in I/O
- 8-ch Wet/Dry Contact Digital Input
- 8-ch Digital Output selectable as either sink-type or
- source-type via wire connection
INTRODUCTION
The ET-2255U provides 8 wet/dry contact Digital Input channels and 8 sink- or source-type Digital Output channels by wire connection. With
2 Ethernet ports, The ET-2255U 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 500 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 to enrich the noise protection ability for industrial environment.
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 (Configurable)
LAN Bypass: Yes
LED Indicators
System Running: Yes
Ethernet Link/Act: Yes
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 ±15 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
Consumption: 24 VDC: 2.3 W (Max.)
48 VDC: 2.7 W (Max.)
Mechanical
Dimensions (L x W x H): 127 mm x 33 mm x 99 mm
Installation: DIN-Rail Mounting
Environment
Operating Temperature: -25 ~ +75°C
Storage Temperature: -30 ~ +80°C
Humidity: 10 ~ 90% RH, Non-condensing