Module 2 cổng PoE Ethernet Modbus TCP & MQTT 8 kênh DI+ 8 kênh DO ICP DAS PET-2255U CR

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PoE Ethernet I/O Module with 8-ch DI and 8-ch Sink/Source-type DO

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Module 2 cổng PoE Ethernet Modbus TCP & MQTT 8 kênh DI+ 8 kênh DO ICP DAS PET-2255U CR

Features

  • Built-in Web Server
  • Support Modbus TCP/UDP, MQTT, and SNMP V2c Protocols
  • 2-port Ethernet Switch (LAN Bypass) for Daisy-Chain Wiring
  • Dual Watchdog
  • I/O Pair Connection (Push and Pull)
  • Built-in I/O
    • 8-channel Wet or Dry contact DI
    • 8-channel DO selectable as either sink- or source-type via wire connection
  • LED Display to Indicate the I/O Status

Introduction

Providing various digital I/O functions, the PET-2255U module is an Ethernet I/O monitoring and control module. The module can be remotely controlled through a 10/100 M Ethernet network by using Modbus TCP/UDP protocol. Modbus has become a de facto standard communications protocol in industry and is now the most commonly available means of connecting industrial electronic devices. This makes the PET-2255U module perfect integration with the HMI, SCADA, PLC, and other software systems.

The PET-2255U provides 8 wet/dry contact Digital Input channels and 8 sink- or source-type Digital Output channels by a wire connection. With 2 Ethernet ports, the PET-2255U allows a daisy chain connection which permits flexibility in locating devices, eases installation, and lowers infrastructure costs. It features optical isolation for 3000 Vrms of transient overvoltage protection but doesn’t provide channel-to-channel isolation. Each input channel can be used as a 32-bit counter and each output channel support configurable power-on and safe values. It can safely be used in applications where hazardous voltages are present. It features 8 kV ESD protection, 4 kV EFT protection, 3 kV surge, and 3000 VDC I/O isolation also provided to enrich the noise protection ability for the industrial environment.

The module can be used to create a DI to DO pair-connect through the Ethernet. After configuration, the PET-2255U module can poll the status of the local DI channels and then use the Modbus/TCP protocol to continuously write to the remote DO devices.

It is equipped with a removable terminal block connector for easy and robust wiring in industrial situations and features a powerful 32-bit ARM MCU to handle efficient network trafficking.

The PET-2255U module supports the MQTT protocol and can act as a message publisher and subscriber. After connecting to the server MQTT Broker, the I/O status of the module can be published in the form of a topic, and can also receive messages from the same subscription topics. In communication, when the ET-2255U module is disconnected from the broker, the module has a reconnection mechanism that can automatically reconnect to the broker. In addition, there is a Keep-Alive Interval mechanism to ensure that the connection with the Broker is always maintained.

The PET-2255U supports the standard SNMP V2c specification. Through this specification, ET-2200 can transmit module information and I/O information to SNMP network management equipment or software (SNMP Network Management Software) to help administrators monitor the status of ET-2200 in real-time. If the Trap function is enabled, when the module I/O status changes or reboots, it can send a message to the manager to keep track of the channel status at any time.

Applications

  • Factory, Building and Home Automation Remote Maintenance.

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) ±8 kV Contact for Each Terminal
±16 kV Air for Random Point
Surge (IEC 61000-4-5) ±2 kV for Power Line
LED Indicators
Status Run, Ethernet, I/O, PoE
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 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 kΩ
Overvoltage Protection +70 VDC
Low Pass Filter 1 to 6500 ms (0.08 Hz to 500 Hz)
Digital Output
Channels 8
Type Push-Pull
Sink/Source (NPN/PNP) Sink/Source
Load Voltage +3.5 to +80 VDC
Load Current 500 mA/channel
Power on Value Programmable
Safe Value Programmable
Ethernet
Ports 2 x RJ-45, 10/100 Base-TX, Switch Ports
PoE Yes
LAN bypass Yes
Security Password and IP Filter
Protocol Modbus TCP, Modbus UDP, MQTT, and SNMP V2c
Power
Reverse Polarity Protection Yes
Consumption 3.7 W (max.)
Powered from PoE IEEE 802.3af, Class1
Powered from Terminal Block +10 to +48 VDC
Mechanical
Casing Plastic
Dimensions (mm) 33 x 126 x 108 (W x L x H)
Installation DIN-Rail mounting
Environment
Operating Temperature -25 to +75 °C
Storage Temperature -40 to +80 °C
Humidity 10 to 90% RH, Non-condensing

Download

Datasheet

Documents

Ordering Information

PET-2255U CR  PoE Ethernet I/O Module with 2-port Ethernet Switch, 8-ch DI, and 8-ch Sink/Source-type DO (RoHS)

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