Siemens 500-5114A Programmable Logic Controller Module

Siemens 500-5114A Base Remote Controller (RBC) is a compact interface module for the TI 500-series PLC ecosystem, delivering RS-485 communications between the main Texas Instruments TI-505 controller and remote bases or peripherals. Built to operate with 500-series equipment, the 500-5114A plugs into a compatible rack and acts as the communication hub for remote-base configurations common in older Siemens/TI automation installations. The RS-485 interface is a defining feature, enabling multi-drop connectivity that supports integration with CTI Janus controllers and other TI RBC–based setups documented in industry references. In practice, this module is used to extend the TI 500/TI-505 control network to remote I/O bases, enabling distributed control while keeping a central TI or Siemens controller able to monitor and command remote devices. Its role is strictly as a Base Remote Controller; it does not function as a standalone CPU or standalone I/O module. For buyers maintaining legacy systems, the 500-5114A provides a proven bridge within mixed Siemens/TI configurations and is referenced in official CTI/Janus integration notes as part of RS-485 RBC deployments.