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PET-2251 - boasts a versatile web server for configuration, along with support for Modbus TCP/UDP, MQTT
by ICP DAS
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PET-2251_SUMMARY.html
PET-2251 - The PET-2251 boasts a versatile web server for configuration, along with support for Modbus TCP/UDP, MQTT, and SNMP V2c protocols, a 2-port Ethernet switch with LAN bypass for daisy-chain wiring, dual-watchdog functionality, I/O pair connection through both push and pull mechanisms, built-in I/O, and LED display indicating the status of the I/O, with options including 16-channel DI (Wet/Dry) for PET-2251 and 32-channel DI (Wet/Dry) for PET-2251-32
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PET-2251_DESCRIPTION.html
Offering diverse digital I/O functionalities, the PET-2251 module serves as an Ethernet-based monitoring and control unit. Utilizing the Modbus TCP/UDP protocol, it enables remote control via a 10/100 M Ethernet network. Given that Modbus has emerged as the industry standard communication protocol, facilitating seamless connectivity among industrial electronic devices, the PET-2251 seamlessly integrates with HMI, SCADA, PLC, and other software systems.
PET-2251.html
| Software |
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| Built-in Web Server | Yes |
| CPU Module |
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| CPU | 32-bit ARM | | Watchdog Timer | Module, Communication (Programmable) |
| Isolation |
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| 2-way Isolation | I/O: 3000 VDC |
| LED Indicators |
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| Status | Run, Ethernet, I/O, PoE |
| EMS Protection |
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| 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 |
| Digital Input/Counter |
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| Channels16 | | | Type | Dry Contact
Wet Contact | | Sink/Source (NPN/PNP) | Dry: Source
Wet: Sink/Source | | ON Voltage Level | Dry: Close to GND
Wet: +5 to +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 kn | | Overvoltage Protection | +70 VDC | | Low Pass Filter | 1 to 6500 ms (0.08 Hz to 500 Hz) |
| Digital Output |
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| Channels | 8 | | Type | Open Collector | | Sink/Source (NPN/PNP) | Sink | | Load Voltage | +3.5 to +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 |
| Ethernet |
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| Ports | 2 x RJ-45, 10/100 Base-TX, Switch Ports | | PoE | Yes | | LAN bypass | Yes | | Access Control | Password and IP Filter | | Protocol | Modbus TCP, Modbus UDP, MQTT, and SNMP V2c |
| Power |
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| Reverse Polarity Protection | Yes | | Consumption | 3.6 W (max.) | | Powered from PoE | IEEE 802.3af, Class2 | | Powered from Terminal Block | +10 to +48 VDC |
| Mechanical |
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| Casing | Plastic | | Dimensions (mm) | 33 x 126 x 108 (W x L x H) | | Installation | DIN-Rail mounting |
| Environment |
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| Operating Temperature | -25 - +75 Deg Celcius | | Storage Temperature | -40 - +80 Deg Celcius | | Humidity | 10 to 90% RH, Non-condensing |
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