Emerson Ovation 1C31166G02 Serial Link Controller PLC Module

The Emerson Ovation™ 1C31166G02 Serial Link Controller offers reliable RS485 data communication within Ovation distributed control systems. It connects EMOD and PMOD modules efficiently, and therefore enables stable signal transfer across complex automation networks. Although the manufacturer discontinued this module, many plants still depend on it for legacy system operation.

Key Features

Provides RS485 4-wire communication to ensure high-speed and stable data transfer
Links EMOD and PMOD modules for flexible system expansion and integration
Works directly with the R1120 CPU to maintain synchronized communication performance
Ensures smooth operation in critical Ovation PLC and machine control applications
Compact form factor simplifies rack installation, wiring, and routine maintenance

Technical Specifications

Parameter	Specification
Part Number	1C31166G02
Manufacturer	Emerson Ovation™
Category	PLCs / Machine Control
Subcategory	PLC Module / Rack
Communication Interface	RS485, 4-wire
Compatible Modules	EMOD + PMOD
Supported CPU	R1120 CPU
Weight	0.70 lbs (0.32 kg)
Availability	Discontinued by Manufacturer

Applications

The 1C31166G02 module supports industrial facilities that require secure module-to-module communication. It manages serial data exchange in power generation plants, and consequently enhances real-time control. Moreover, it improves data consistency within manufacturing sites that rely on Emerson Ovation™ platforms.

In addition, many operators use the 1C31166G02 to extend the life of installed Ovation systems. Its compatibility with EMOD and PMOD modules allows seamless expansion without redesigning the entire rack. Therefore, it provides excellent value for plants maintaining long-term control infrastructure.

Maintenance and Reliability

The module features a durable hardware design that withstands demanding plant conditions. Technicians can replace it quickly in the field, and consequently minimize downtime during maintenance activities. Because of its proven reliability, it continues to operate effectively even after Emerson discontinued production.