PET-7251 PoE Ethernet I/O Module, 16-ch Wet Contact DI with 2-port Switch
PoE-powered Ethernet I/O module with 16 wet contact digital inputs, 32-bit counting and a 2-port switch for daisy-chaining. Supports Modbus TCP and Modbus UDP.
- 16 wet contact digital input channels, sink/source, each usable as a 32-bit counter
- PoE powered (IEEE 802.3af, Class 1) or +12 ~ +48 VDC terminal block supply
- 2-port 10/100 Base-TX switch with LAN bypass for daisy-chain topology
- Modbus TCP and Modbus UDP protocol support
- Built-in web server and Web HMI for configuration
- Dual watchdog: module and communication, programmable
€308.00 per piece
| 1-9 pcs | €308.00 | |
|---|---|---|
| 10-30 pcs | €293.00 | −5 % |
| 31+ pcs | €277.00 | −10 % |
Product information "PET-7251 PoE Ethernet I/O Module, 16-ch Wet Contact DI with 2-port Switch"
The PET-7251 CR is a PoE Ethernet I/O module that brings 16 wet contact digital inputs onto a Modbus network. Each channel can also operate as a 32-bit counter, with a maximum count of 4,294,967,295 and an input frequency of 100 Hz, which suits pulse counting and status monitoring from field contacts.
An integrated 2-port 10/100 Base-TX switch with LAN bypass allows the module to be daisy-chained along a line of devices. It can be powered either from PoE (IEEE 802.3af, Class 1) or from a +12 ~ +48 VDC terminal block. The built-in web server and Web HMI, together with ID, password and IP filter access control, support configuration and remote supervision.
Optical isolation is rated at 2500 VDC for I/O, with transient overvoltage protection stated at 3750 Vrms. Note that there is no channel-to-channel isolation. The module is DIN-rail mounted and is specified for an operating range of -25 ~ +75 °C.
Applications
- Building Automation
- Factory Automation
- Machine Automation
- Remote Maintenance
- Remote Diagnosis
- Testing Equipment
| Product type: | Ethernet I/O Module |
|---|---|
| Interface: | Ethernet |
| Protocol: | Modbus TCP, Modbus UDP |
| Digital inputs: | 16 |
| Ports: | 2 |
| PoE: | Yes |
| Isolation: | 2500 VDC |
| Power input: | PoE or +12 ~ +48 VDC |
| Operating temperature: | -25 ~ +75 °C |
| Mounting: | DIN-rail |
Specifications
| Software | |
|---|---|
| Built-in Web Server | Yes |
| CPU Module | |
| Watchdog Timer | Module, Communication (Programmable) |
| Isolation | |
| 2-way Isolation | 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, PoE |
| Digital Input/Counter | |
| Channels | 16 |
| Type | Wet Contact |
| Sink/Source (NPN/PNP) | Sink/Source |
| ON Voltage Level | +10 ~ +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 |
| PoE | Yes |
| LAN bypass | Yes |
| Access Control | ID, Password and IP Filter |
| Protocol | Modbus TCP, Modbus UDP |
| Power | |
| Reverse Polarity Protection | Yes |
| Consumption | 3.1 W (max.) |
| Powered from PoE | IEEE 802.3af, Class1 |
| Powered from Terminal Block | +12 ~ +48 VDC |
| Mechanical | |
| Dimensions (mm) | 76 x 120 x 42 (W x L x H) |
| Installation | DIN-Rail mounting |
| Environment | |
| Operating Temperature | -25 ~ +75 °C |
| Storage Temperature | -30 ~ +80 °C |
| Humidity | 10 ~ 90% RH, Non-condensing |
Specifications as published by the manufacturer. Subject to change.
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