ET-7251
Ethernet I/O Module with 2-port Ethernet Switch, 16-ch DI
Features
- Built-in Web Server
- Web HMI
- Support for both Modbus TCP and Modbus UDP Protocols
- Communication Security
- 2-port Ethernet Switch for Daisy-Chain Topology
- I/O Pair Connection
- Dual Watchdog
- Built-in I/O
- DI/Counter: 16 Channels
Introduction
The ET-7251 provides 16 wet contact digital input channels. Each input channel can be used as a 32-bit counter. It features optical isolation for 3750 Vrms of transient overvoltage protection but doesn’t provide channel-to-channel isolation. It can safely be used in applications where hazardous voltages are present.
Applications
Building Automation, Factory Automation, Machine Automation, Remote Maintenance, Remote Diagnosis, Testing Equipment.
Ordering Information
| PRODUCT SERIES | DESCRIPTION | QNT. | INQUIRY |
|---|---|---|---|
This combination include other products.
Similar Products
| Software | |
|---|---|
| Built-in Web Server | Yes |
| CPU Module | |
|---|---|
| Watchdog Timer | Module, Communication (Programmable) |
| Isolation | |
|---|---|
| 2-way Isolation | Ethernet: 1500 VDC I/O: 2500 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 |
| LED Indicators | |
|---|---|
| Status | Run, Ethernet, I/O |
| Digital Input/Counter | |
|---|---|
| Channels | 16 |
| Type | Wet Contact |
| Sink/Source (NPN/PNP) | Sink/Source |
| ON Voltage Level | +10 to +50 VDC |
| OFF Voltage Level | +4 VDC (max.) |
| Max. Counts | 4,294,967,295 (32-bit) |
| Frequency | 100 Hz |
| Min. Pulse Width | 5 ms |
| Input Impedance | 10 kΩ |
| Overvoltage Protection | +70 VDC |
| Ethernet | |
|---|---|
| Ports | 2 x RJ-45, 10/100 Base-TX, Swtich Ports |
| LAN bypass | Yes |
| Access Control | ID, Password and IP Filter |
| Protocol | Modbus TCP, Modbus UDP |
| Power | |
|---|---|
| Reverse Polarity Protection | Yes |
| Consumption | 2.9 W (max.) |
| Powered from Terminal Block | +12 to +48 VDC |
| Mechanical | |
|---|---|
| Dimensions (mm) | 76 x 120 x 38 (W x L x H) |
| Installation | DIN-Rail mounting |
| Environment | |
|---|---|
| Operating Temperature | -25 ~ +75 °C |
| Storage Temperature | -30 ~ +80 °C |
| Humidity | 10 to 90% RH, Non-condensing |
