Siemens 6ES5314-3UR11 Communication Interface Module

The Siemens 6ES5314-3UR11 Interface Module (Model IM 314R CC) is a communications interface that links distributed expansion units to a central controller in SIMATIC S5 systems. Designed for SIMATIC S5-115H and S5-155H installations, it supports serial, party-line communication with asynchronous, half-duplex synchronization over distances up to 600 meters. Used for distributed I/O communication and PLC expansion in factory automation, process control, and industrial production environments, the module is rack-mounted in compatible SIMATIC S5 systems and is commonly utilized by maintenance teams, OEMs, and system integrators for replacement, expansion, and retrofit.