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Ethernet I/O Module with 8-ch DI, 8-ch DO
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Module Ethernet T1L Modbus TCP & MQTT 8 kênh DI + 8 kênh DO ICP DAS ETL-2255 CR
Features
Introduction
ETL-2255 is a 8-channel DI (Wet/Dry Contact) and 8-channel DO (Sink-type) module. Each input channel can function as a 32-bit counter, while each output channel can be configured with a power-on value and safe value, ensuring the module's safe operation in applications with hazardous voltages.
The module features a T1L design that supports transmission distances of up to 1000 m and includes a builtin 2-port Ethernet switch, facilitating a daisy-chain topology. This feature offers flexibility in device configuration, simplifies installation, and reduces infrastructure costs.
The module features optical-isolated 3000 Vrms transient overvoltage protection and does not support channel-to-channel isolation. Additionally, it provides EMS (EFT/ESD/Surge) protection and 3000 VDC I/O isolation to enhance noise protection capabilities in industrial environments.
Applications
• Factory Automation
• Machine Automation
• Building Automation
• Remote Diagnosis & Maintenance
• Testing Equipment

Specifications
| Software | |
|---|---|
| Built-in Web Server | Yes |
| CPU Module | |
|---|---|
| CPU | 32-bit ARM |
| Watchdog Timer | Module, Communication (Programmable) |
| Isolation | |
|---|---|
| 2-way Isolation | Ethernet: 1500 VDC I/O: 3000 VDC |
| EMS Protection | |
|---|---|
| EFT (IEC 61000-4-4) | ±4 kV for Power Line |
| ESD (IEC 61000-4-2) | ±4 kV Contact for Each Terminal ±8 kV Air for Random Point |
| Surge (IEC 61000-4-5) | ±2 kV for Power Line |
| LED Indicators | |
|---|---|
| Status | Run, Ethernet, I/O |
| Digital Input/Counter | |
|---|---|
| Channels | 8 |
| Type | Dry Contact Wet Contact |
| Sink/Source (NPN/PNP) | Dry: Source Wet: Sink/Source |
| ON Voltage Level | Dry: Close to GND Wet: +5 ~ +50 VDC |
| OFF Voltage Level | Dry: Open Wet: +1 VDC (max.) |
| Max. Counts | 4,294,967,295 (32-bit) |
| Frequency | 3 kHz |
| Input Impedance | 7.5 kΩ |
| Overvoltage Protection | +70 VDC |
| Low Pass Filter | 1 ~ 6500 ms (0.08 Hz ~ 500 Hz) |
| Digital Output | |
|---|---|
| Channels | 8 |
| Type | Open Collector |
| Sink/Source (NPN/PNP) | Sink |
| Load Voltage | +3.5 ~ +50 VDC |
| Load Current | 650 mA/channel |
| Overvoltage Protection | +60 VDC |
| Overload Protection | 1.4 A (with short-circuit protection) |
| Short-circuit Protection | Yes |
| Power on Value | Programmable |
| Safe Value | Programmable |
| T1L Communication | |
|---|---|
| Ports | 2 x 10 Base-T1L, Switch Ports |
| Standards | IEEE802.3cg |
| Protocol | Modbus TCP, Modbus UDP, MQTT, SNMP V2c |
| Access Control | Password and IP Filter |
| Transmission Distance | 1000 m (max.) |
| Connector | 3-pin Spring Clamp |
| Cable Type | Shielded Twisted Pair (STP), 18 AWG ~ 24 AWG |
| LAN bypass | Yes |
| Power | |
|---|---|
| Reverse Polarity Protection | Yes |
| Consumption | 3.5 W (max.) |
| Powered from Terminal Block | +10 ~ +30 VDC |
| Mechanical | |
|---|---|
| Casing | Plastic |
| Dimensions (mm) | 33 x 136 x 108 (W x L x H) |
| Installation | DIN-Rail mounting |
| Environment | |
|---|---|
| Operating Temperature | -25 ~ +75 °C |
| Storage Temperature | -40 ~ +80 °C |
| Humidity | 10 ~ 90% RH, Non-condensing |
Download
Documents
Ordering Information
| ETL-2255 CR | Ethernet I/O Module with 2-port T1L Ethernet Switch, 8-ch DI, 8-ch DO (Sink) (RoHS) |