fault – OPC Unified Architecture – Part 15: Safety

OPC Unified Architecture – Part 15: Safety

v1.05.04

1Scope
2Normative references
3Terms, definitions, symbols, abbreviated terms and conventions
4Overview of OPC UA Safety
5General
6Safety communication layer services
7Safety communication layer protocol
- 7.1General
- 7.2SafetyProvider and SafetyConsumer
8Safety communication layer management
- 8.1General
- 8.2Safety function response time part of communication
9System requirements (SafetyProvider and SafetyConsumer)
10Assessment
11Profiles and Conformance Units
12Namespaces
- 12.1Namespace metadata
- 12.2Handling of OPC UA namespaces
Annex ASafety Namespace and mappings (Normative)
Annex BAdditional information (Informative)
Annex CInformation for assessment (Informative)
Bibliography

3.1.1.4 fault

abnormal condition that may cause a reduction in, or loss of, the capability of a functional unit to perform a required function

Note 1

Note 1 to entry: IEV 191‑05‑01 defines “fault” as a state characterized by the inability to perform a required function, excluding the inability during preventive maintenance or other planned actions, or due to lack of external resources.