Signal Marshalling: Primary Requirements & Critical Success Factors
Signal marshalling plays a critical role in connecting instrumentation devices throughout large-scale industrial process plants via distributed control systems (DCS). It enables the reliable transmission of signals from thousands of distributed field devices like sensors, valves, and actuators back to the control room. The long distances and sheer volume of signals in expansive process facilities make it impractical to connect field signals directly to control units or I/O modules. Signal marshalling provides an interface to group and bundle signals, routing them over common transmission paths.