In order to prevent and protect the manufacturers and vendors of OPC UA Safety products from possibly misleading understandings or wrong expectations and gross negligence actions regarding safety-related developments and applications, the following items must be observed and explained in each training, seminar, workshop and consultancy.
- A device will not be automatically applicable for safety-related applications just by implementing OPC UA Safety.
- In contrast, appropriate development processes according to safety standards must be observed for safety-related products (see IEC 61508, IEC 61511, IEC 602041, IEC 62061, and ISO 13849) and/or an assessment from a notified assessment body is required.
- The manufacturer of a safety product is responsible for the correct implementation of this specification, as well as the correctness and completeness of the product documentation and information.
- Additional important information including corrigenda and errata published by the OPC Foundation and/or PI must be considered for implementation and assessment.
- The OPC UA Safety test specification describes the test cases which are necessary to test the behavior of a SafetyAutomationComponent as described in this document. These tests – or a set of (automated or manual) tests that has been shown to test the behavior in an equivalent way - must be successfully run at a test laboratory accredited by the OPC Foundation or PI. For details on the testing and certification processes, please consult the OPC Test Lab Specification (OPC 10010, all parts). For a possible architecture of an automated way to perform the test cases, see 12.3. Note that this verification step does not substitute the other methods of assessment that are mentioned in this document.