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3 result(s) for ResponseSPDUs

• OPC-10000-15 – OPC Unified Architecture - Part 15: Safety
  7.2.2.2 SafetyProvider and SafetyConsumer Sequence diagram
  SafetyProvider (state machine or OPC UA Mapper ) shall answer all requests. The returned ResponseSPDUs may contain different values (e.g. currently available process values ) or contain the initially returned values. [RQ7.11 ... corresponding safety manual. NOTE 2 Since a SafetyConsumer checks for changed MNRs in ResponseSPDUs (see SafetyConsumer state S14_WaitForChangedSPDU in Table 34 and transition T17 in Table 35 ), and therefore
• OPC-10000-15 – OPC Unified Architecture - Part 15: Safety
  7.2.2.3 Duration of demand
  considered. In case A, repeated identical RequestSPDUs are being answered by the SafetyProvider with ResponseSPDUs which contain the initially returned value. This is the case for PubSub communication ... Figure 16 show examples justifying case B by depicting two sequences of ResponseSPDUs as sent by a SafetyProvider . Due to the cycles of SafetyProvider and SafetyConsumer not being synchronized
• OPC-10000-15 – OPC Unified Architecture - Part 15: Safety
  9.1.2 SafetyConsumerID
  SafetyConsumerID The SafetyConsumerID allows for discrimination between RequestSPDUs and ResponseSPDUs belonging to different SafetyConsumers . It is mainly used for diagnostic purposes, such as detecting unintentional concurrent access of a single