1C31169G02 | Emerson Ovation Serial Link Controller Personality Module

Overview

The Emerson 1C31169G02 is a Serial Link Controller Personality Module (LC PMOD) for the Ovation™ distributed control system. It provides the RS-485 serial interface personality for the 1C31166G01 Serial Link Controller, enabling robust multi-drop communication over long distances.

Technical Specifications

• Manufacturer: Emerson (Westinghouse)
• Model: 1C31169G02
• Type: LC PMOD (Personality Module) — RS-485 Serial Link
• Communication Protocol: RS-485 (also supports RS-422 four-wire)
• Operating Voltage: 24 VDC / 120 VAC (per some sources)
• Weight: ~136 – 300 g

Key Features

• RS-485 personality for 1C31166G01 Serial Link Controller
• Supports multi-drop networks with up to 32 devices per segment
• Robust electrical isolation protects against ground loops and EMI
• LED status indicators for link activity and fault diagnostics

FAQ

Q: What is the difference between 1C31169G01 and 1C31169G02?
A: 1C31169G01 provides RS-232 personality; 1C31169G02 provides RS-485/RS-422 personality for longer distance and multi-drop applications.

Q: Can I use this for Modbus RTU networks?
A: Yes, the RS-485 interface supports Modbus RTU and similar industrial serial protocols.

Q: What cable length can RS-485 support?
A: RS-485 supports cable runs up to approximately 1,200 meters (4,000 feet) depending on baud rate and cable quality.

Installation Guidelines

1. Insert the 1C31169G02 personality module into the 1C31166G01 Serial Link Controller.
2. Connect shielded twisted-pair RS-485 cabling to the terminal block.
3. Install termination resistors at both ends of the RS-485 network.
4. Verify polarity (A+/B-) matches across all devices on the network.

Selection Tips

• Order 1C31169G02 when your application requires RS-485 serial communication.
• For RS-232 applications, use 1C31169G01 instead.
• Verify the SLC algorithm resides in the Ovation controller for proper operation.