Functional safety for communication with OPC UA Part15: Safety
Safe communication for modular machines and dynamic systems
DOI:
https://doi.org/10.17560/atp.v62i3.2458Keywords:
Modular machines, communication error, cyclic redundancy checkAbstract
The document OPC UA Safety – jointly developed by Profibus & Profinet International and the OPC Foundation – specifies functional safety for communications between industrial controllers via a standardized, vendor-independent interface. It supports both unicast and multicast, as well as arbitrarily structured user data with a length of up to 1500 bytes. The safety measures are derived from PROFIsafe and comply with all relevant safety standards. OPC UA Safety makes it possible to build modular machines in which the safety functions adapt to the actual configuration of such a machine. Even safety functions requiring a change of communication partners during runtime, for instance in the context of autonomous mobile robots, can be realized.
References
IEC 61058. (2010). Functional safety of electrical/electronic/programmable electronic safety-related systems. IEC: www.vde-verlag.de
IEC 61784-3. (2016). Industrial communication networks – Profiles – Part 3: Functional safety fieldbuses – General rules and profile definitions. IEC: www.vdi-verlag.de
IEC 61784-3-3. (2016). Industrial communication networks – Profiles – Part 3: Functional safety fieldbuses – Additional specifications for CPF 3, “PROFIsafe”. IEC: www.vde-verlag.de
IEC 62541. (2016). OPC 10000 Unified Architecture. IEC: www.vde-verlag.de
OPC 10000-15 Unified Architecture – Part 15: Safety, to appear
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