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

Module 2 cổng PoE Ethernet Modbus TCP & MQTT 8 kênh DI+ 8 kênh DO ICP DAS PET-2255 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 Sink-type DO
• LED Display to Indicate the I/O Status

Introduction

Providing various digital I/O functions, the PET-2255 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-2255 module perfect integration with the HMI, SCADA, PLC, and other software systems.

The PET-2255 provides 8 wet/dry contact digital Input channels and 8 sink-type digital output channels, With 2 Ethernet ports, the PET-2255 allows 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 DI to DO pair-connect through the Ethernet. After configuration, the PET-2255 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.

PET-2255 module supports 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 PET-2255 module is disconnected from the broker, the module has a reconnection mechanism that can automatically reconnect with the broker. In addition, there is a Keep-Alive Interval mechanism to ensure that the connection with the Broker is always maintained.

The PET-2255 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

Download

Datasheet

Documents

Ordering Information