CIP Safety expanded to include Safe Motion

03 December 2013

The next edition of The CIP Safety Specification will include services for safe motion applications. With the addition of these services to CIP Safety, users will be able to deploy networked motion control systems using EtherNet/IP and Sercos III in applications requiring safe motion functions such as safe torque off and safety limited positions.

In 2006, Sercos International announced that it would adopt CIP Safety as the safety protocol for Sercos. Since then, ODVA and Sercos International have worked together on enhancements to The CIP Safety Specification and its associated conformance tests, as well as on broader industry topics such as machine integration.

Recent enhancements to CIP Safety relied on IEC 61800-5-2 (Adjustable Speed Electrical Power Drive System – Part 5-2: Safety Requirements – Functional) as a framework. The enhancements were further developed and the resulting CIP Safety services for safe motion include support for drives on EtherNet/IP and Sercos III. 

The safe motion enhancements to CIP Safety are part of ODVA’s semi-annual update of its family of specifications which, for the second publication cycle of 2013, include over 20 different enhancements.

 “CIP Safety provides users with a proven approach to functional safety that is supported by multiple vendors and two leading consortia, ODVA and Sercos International,” said Katherine Voss, president and executive director of ODVA. “The extension of safe motion to CIP Safety will further accelerate adoption and innovation in motion control systems using EtherNet/IP and Sercos III.”

“The inclusion of safe motion in CIP Safety will provide machine builders with an integrated and flexible solution for functional safety,” added Peter Lutz, managing director of Sercos International. “Moreover, the availability of CIP Safety conformance testing for Sercos III will facilitate the implementation and certification of CIP Safety on Sercos III devices, and help to ensure that machine builders are able to deploy certified functional safety devices in machines using Sercos.”

In addition to their collaboration on CIP Safety, the ODVA and Sercos International will continue to collaborate with the OPC Foundation on machinery integration, which is currently focused on machine-to-supervisory communication and logical groupings of data such as functional safety. 

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