Home Site Map Contact
News Technology Development Tools Certification Literature Support Organization Products
Introduction to Sercos
Three Generations
Implementation of Sercos
Certification of Sercos Devices
Worldwide Availability
Applications Types
Sercos III
Sercos I and II
Sercos Standardization
Introduction to Sercos

Sercos is a digital automation bus that interconnects motion controls, drives, I/Os, sensors and actuators for numerically controlled machines and systems. It is designed for high-speed serial communication of standardized closed-loop real-time data over a noise-immune, fiber optic ring (Sercos I & II) or Industrial Ethernet cable (Sercos III). Sercos is an international standard.

In a Sercos system, all servo loops are normally closed in the drive. This reduces the computational load on the motion controller, allowing it to synchronize more motion axes than it otherwise could. In addition, closing all the servo loops in the drive reduces the effect of the transport delay between the motion control and drive.

For numerically controlled machines, digital intelligent drives offer maximum precision and speed while minimizing equipment costs. Sercos was originally developed as a dedicated, high-performance drive interface to make use of these advantages. However, during the last two decades Sercos has advanced to become a universal real-time communication interface for all types of automation applications. More than 500 standardized parameters are specified to define the interaction of controls, I/Os and peripheral devices in a multitude of applications, providing for the interoperability of devices from different manufacturers.

Join the SERCOS N.A. Mailing list