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7 result(s) for SafetyStructureSignature

• OPC-10000-15 – OPC Unified Architecture - Part 15: Safety
  6.2.2.6 Objects SafetyProviderParameters and SafetyConsumerParameters
  HasProperty Variable SafetyBaseIDActive Guid PropertyType Mandatory HasProperty Variable SafetyProviderLevel Byte PropertyType Mandatory HasProperty Variable SafetyStructureSignature UInt32 PropertyType Mandatory HasProperty Variable SafetyStructureSignatureVersion UInt16 PropertyType Mandatory HasProperty Variable SafetyStructureIdentifier String PropertyType Mandatory ... shows the definition of the SafetyConsumerParametersType. The Properties SafetyStructureIdentifier and SafetyStructureSignatureVersion are optional, because SafetyStructureSignature is typically calculated in an offline engineering tool. For small devices, it could be beneficial
• OPC-10000-15 – OPC Unified Architecture - Part 15: Safety
  6.3.3.3 SPI of SafetyProvider
  when a SafetyConsumer is parameterized to implement a safety function with a high SIL . SafetyStructureSignature UInt32 0x0 to 0xFFFFFFFF 0x0 R/W Signature of the SafetyData structure, for calculation ... properly configured. SafetyConsumers will never try to communicate with SafetyProviders having a SafetyStructureSignature of 0x0, see Transitions T13/T27 in Table 35 and the macro <ParametersOK?> in Table
• OPC-10000-15 – OPC Unified Architecture - Part 15: Safety
  6.3.4.4 SPI of the SafetyConsumer
  SafetyProvider implementation (hardware and software) is capable of. See 3.1 , 7.2.3.4 , and Figure 9 . SafetyStructureSignature UInt32 0x0 to 0xFFFFFFFF 0x0 R/W Signature over the SafetyData structure, see 7.2.3.5 . SafetyStructureSignatureVersion UInt16 ... Version used to calculate SafetyStructureSignature , see 7.2.3.5 . For the SafetyConsumer , this parameter is optional. SafetyStructureIdentifier String "" R/W Identifier describing the DataType of the SafetyData
• OPC-10000-15 – OPC Unified Architecture - Part 15: Safety
  7.2.2.5 SafetyConsumer state diagram
  parameter SafetyProviderID SPI_SafetyBaseID_i UInt128 Local variable to store the parameter SafetyBaseID SPI_SafetyStructureSignature_i UInt32 Local variable to store the parameter SafetyStructureSignature SPI_SafetyOperatorAckNecessary_i Boolean Local variable ... SafetyProviderLevel_ID SPDU_ID_2_i:= BaseID (octets 4…7) XOR SPI_SafetyStructureSignature_i SPDU_ID_3_i:= BaseID (octets 8…11) XOR BaseID (octets 12…15) XOR ProviderID
• OPC-10000-15 – OPC Unified Architecture - Part 15: Safety
  7.2.3.3 Example for the calculation of SPDU_ID_1, SPDU_ID_2 and SPDU_ID_3 (informative)
  GUID "72962B91-FA75-4AE6-8D28-B404DC7DAF63", SafetyProviderID has the value 0xE0EA6B40, SafetyStructureSignature has the value 0xDE7329FD and the SafetyProviderLevel_ID is chosen as 0xDEAA9DEE (representing
• OPC-10000-15 – OPC Unified Architecture - Part 15: Safety
  7.2.3.5 Signature over the SafetyData Structure (SafetyStructureSignature)
  Signature over the SafetyData Structure (SafetyStructureSignature) SafetyStructureSignature is used to check the number, DataTypes , and order of application data transmitted in SafetyData . If the SafetyConsumer is expecting anything different than ... what the SafetyProvider actually provides, SafetyStructureSignature will differ, allowing the SafetyConsumer to enable fail-safe substitute values . In addition, the identifier of the Structure DataType ( SafetyStructureIdentifier ) is also taken into
• OPC-10000-15 – OPC Unified Architecture - Part 15: Safety
  10.3 Index of requirements (informative)
  higher SIL indicator 7.2.3.4 Coding of the SafetyProviderLevel_ID RQ7.19 Calculation of SafetyStructureSignature 7.2.3.5 Signature over the SafetyData Structure (SafetyStructureSignature) RQ7.20 No evaluation of SafetyStructureSignature 7.2.3.5 Signature over the SafetyData ... Structure (SafetyStructureSignature) RQ7.21 Value of SafetyStructureSignatureVersion 7.2.3.5 Signature over the SafetyData Structure (SafetyStructureSignature) RQ7.22 Generator polynomial for CRC signature 7.2.3.6 Calculation of a CRC signature RQ7.23 Endianess encoding of SafetyData