ABB CI853A RS-232C/RS-485 Communication Interface Module

Product Overview

The ABB CI853A (3BSE018103R1) is a dual serial communication interface for the AC 800M controller. It supports RS-232C and RS-485 protocols, enabling connectivity to Modbus RTU, COMLI, and custom serial devices.

Key Specifications

• Manufacturer: ABB
• Part Number: CI853A (3BSE018103R1)
• Product Type: Dual RS-232C/RS-485 Communication Interface
• System: AC 800M / System 800xA
• Channels: 2
• Protocols: Modbus RTU, COMLI, Siemens 3964R, custom
• Baud Rate: 75 – 19,200 b/s
• Bus: CEX-Bus mounted
• Hot Swap: Supported
• Weight: 700 g (package CI853K01)
• Dimensions: W 59 × H 185 × D 127.5 mm

Applications

• Serial device integration
• Modbus RTU master/slave
• Legacy protocol bridging
• Barcode scanners, weigh scales, analyzers

FAQ

Q: Does CI853A support RS-485?
A: Yes, CI853A supports both RS-232C and RS-485 communication standards.

Q: Can both channels be used simultaneously?
A: Yes, the two channels can operate independently with different protocols and baud rates.

Installation Guide

1. Mount CI853A on the CEX-Bus.
2. Connect serial cables to the terminal block.
3. Configure protocol parameters in Control Builder M.
4. Verify communication with serial devices.

Selection Tips

• Order CI853A for serial protocol integration.
• For PROFIBUS DP, use CI854/CI854A instead.