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Companion Specification Safety over OPC UA

PROFIsafe , PROFINET

Description:

This specification explains the relevant principles of functional safety for communication with reference to the IEC 61508 series as well as IEC 61784-3 and others and specifies a safety communication layer based on the OPC Unified Architecture.

Safety over OPC UA do this in such a way that OPC UA can be used for applications requiring functional safety up to the Safety Integrity Level (SIL) 4.

The resulting SIL claim of a system depends on the way implementation of Safety over OPC UA is implemented within this system. That means that if a certain SIL is desired, this specification has to be implemented on a device which fulfils the requirements for this SIL as described in IEC 61508. In particular, measures against random hardware failures and systematic errors (e.g. software bugs) must be taken.

 

Version: Draft RC1.0
Order No.: 2.782
Language: English

This draft is published for testing and review only. It must not be used for development purposes.

Comments to be submitted to uacomments@opcfoundation.org, until July 23, 2019.

Files:
# Date Filename Type Size
18/04/2019 Safety_over_OPC_UA_2782_RC10_Mar19.pdf pdf 2 MB

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