ABB PCD232A 3BHE022293R0101 Serial Communication Interface Module

Product Overview

ABB PCD232A (3BHE022293R0101, also named PEC80-CIO) is a serial communication interface module belonging to the ABB AC800PEC controller platform. 

It provides two configurable serial channels to connect traditional field devices such as transmitters, drives, meters and HMI panels to the AC800PEC control system. It supports Modbus 

RTU / ASCII and custom serial protocols, with electrical isolation design to suppress field electromagnetic interference. It is widely used in power generation, metallurgy and process 

automation as a bridge between the main controller and serial slave devices.

Technical Specifications

• Brand: ABB
• Model: PCD232A
• Part Number: 3BHE022293R0101
• Product Type: Serial Communication Interface Module
• System Compatibility: AC800PEC
• Communication Ports: 2 x configurable RS232 / RS485
• Protocol: Modbus RTU, Modbus ASCII, user-defined protocol
• Power Supply: 18–30 VDC backplane power
• Operating Temperature: -20℃ ~ +70℃
• Storage Temperature: -40℃ ~ +85℃
• Indicator: LED status indicators for Tx/Rx and fault

• Installation: Standard rack slot, hot-swap capable

• 

Key Features

1. Dual independent serial channels, flexible configuration of RS232 or RS485
2. Built-in electrical isolation between channels, high anti-interference performance
3. Support Modbus master/slave function and custom serial communication
4. Hot swap support, no need to shut down the whole system for replacement
5. Front LED indicators for quick diagnosis of communication and fault status
6. Compact single-slot design, easy for dense rack arrangement
7. Overvoltage and reverse polarity protection circuit