Fiber optic cable assembly Fiberguide Industries
SERCOS

An international standard, SERCOS is an acronym for SErial Realtime COmmunications System, a digital motion control bus that interconnects motion controls, drives, I/Os, sensors and actuators for numerically controlled machines and systems. It is an open controller-to-intelligent digital device interface, designed for high-speed serial communication of standardized closed-loop real-time data over a noise-immune, fiber optic ring (SERCOS l & ll) or Industrial Ethernet cable (SERCOS lll).
The SERCOS interface offers more than 500 standardized parameters that describe the interaction of drives and controls in terms independent of any manufacturer. This rich instruction set provides for communication of commands, parameters, status, and diagnostics, handing many different types of systems. SERCOS also includes features for I/0 control that often allow a machine builder to dispense with the need for a separate I/0 bus.
The SERCOS interface greatly reduces connectivity problems in control systems. It can connect up to 254 drives to a control using one fiber optic cable ring or a single daisy-chained Industrial Ethernet cable. A comparable traditional analog servo system with 8 axes of motion may require over 100 wires between the drive and control.

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