ET-2251 Ethernet I/O Module, 16-ch DI with 2-port Ethernet Switch
16-channel wet/dry contact digital input module with 32-bit counters, a built-in 2-port Ethernet switch for daisy-chain wiring, and Modbus TCP, MQTT and SNMP V2c support.
- 16-channel digital input for wet and dry contacts, each channel selectable as a 32-bit counter
- Built-in 2-port Ethernet switch (10/100 Base-Tx) with LAN bypass for daisy-chain wiring
- Modbus TCP/UDP, MQTT and SNMP V2c protocol support
- I/O Pair Connection (Push and Pull) between DI and remote DO channels
- Built-in web server for configuration, with password and IP filter access control
- Dual-watchdog support and LED indicators for run, Ethernet and I/O status
184,00 € pro Stück
| 1–9 Stück | 184,00 € | |
|---|---|---|
| 10–30 Stück | 179,00 € | −3 % |
| ab 31 Stück | 175,00 € | −5 % |
Produktinformationen "ET-2251 Ethernet I/O Module, 16-ch DI with 2-port Ethernet Switch"
ET-2251 CR is an Ethernet I/O module with 16 digital input channels that accept both wet and dry contacts. Each channel can also operate as a 32-bit counter, with a maximum count of 4,294,967,295, so the module suits pulse counting and status monitoring alongside simple switch sensing.
The built-in 2-port Ethernet switch with LAN bypass lets you daisy-chain modules along a network line, which reduces the number of switches and cabling needed. Configuration is handled through the built-in web server, and I/O Pair Connection (Push and Pull) allows local DI data to be written to remote DO channels via Modbus TCP.
For communication, the module supports Modbus TCP/UDP, MQTT as both publisher and subscriber, and SNMP V2c with optional Trap messages for I/O or restart events. Its EMS protection and 3000 VDC I/O isolation support use in electrically noisy industrial environments.
Applications
- Factory Automation
- Machine Automation
- Building Automation
- Remote Diagnosis & Maintenance
- Testing Equipment
| Product type: | Ethernet I/O Module |
|---|---|
| Interface: | Ethernet |
| Protocol: | Modbus TCP, Modbus UDP, MQTT, SNMP v2c |
| Digital inputs: | 16 |
| Ports: | 2 |
| Isolation: | Ethernet 1500 VDC, I/O 3000 VDC |
| Power input: | +10 ~ +30 VDC |
| Operating temperature: | -25 ~ +75 °C |
| Mounting: | DIN-rail |
| Housing: | Plastic |
Technische Daten
| 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) | ±8 kV Contact for Each Terminal ±16 kV Air for Random Point |
| Surge (IEC 61000-4-5) | ±3 kV for Power Line |
| LED Indicators | |
| Status | Run, Ethernet, I/O |
| Digital Input/Counter | |
| Channels | 16 |
| 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) |
| Ethernet | |
| Ports | 2 x RJ-45, 10/100 Base-Tx, Switch Ports |
| LAN bypass | Yes |
| Access Control | Password and IP Filter |
| Protocol | Modbus TCP, Modbus UDP, MQTT, SNMP V2c |
| Power | |
| Reverse Polarity Protection | Yes |
| Consumption | 3.0 W (max.) |
| Powered from Terminal Block | +10 ~ +30 VDC |
| Mechanical | |
| Casing | Plastic |
| Dimensions (mm) | 33 x 126 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 |
Technische Daten laut Hersteller. Änderungen vorbehalten.
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