Bosch Rexroth has made the Sercos SoftMaster available as free open source software. They also offer a free Sercos-on-a-Stick livesystem--a complete stand-alone demo Sercos driver package on a USB thumb drive. This includes the SoftMaster based on INtime® Distributed RTOS from TenAsys Corporation, and a test application. This is the Sercans XS package.
The featured solution is scalable:
Using the generic mode, virtually every Ethernet controller is suitable for use with the Sercos SoftMaster. However, the telegram jitter reduces the synchronization accuracy. For higher synchronicity and cycle time requirements, the NIC/TTS mode (as with Intel I210) is available. Here, the Ethernet controller (NIC) precisely determines the telegram transmission using its own timer. Software-based timing disturbances (jitter) are eliminated as programs must only ensure that telegram content is fed to the Etherrnet controller within the time window provided.
About Sercos International
Sercos International is an association of users and manufacturers that is in charge of technical development, standardization, certification and marketing for the Sercos automation bus. Conformance tests guarantee that Sercos implementations are standard-compliant ensuring that devices from different manufacturers can be combined. Based in Germany, the organization presently has more than 90 member companies located around the world and has national liaison offices in North America and Asia.
The SErial Realtime COmmunication System, or Sercos, is one of the world’s leading digital interfaces for communication between controls, drives and decentralized peripheral devices. Sercos has been used in machine engineering for approximately 25 years and is implemented in over 5 million real-time nodes. With its open, manufacturer-independent Ethernet-based architecture, Sercos III is a universal bus for all automation solutions.