This method reads safe data from the SafetyProvider. It is in the responsibility of the safety application, that this method is not concurrently called by multiple SafetyConsumers. Otherwise, the SafetyConsumer may receive invalid responses resulting in a safe reaction which may lead to spurious trips and/or system unavailability.
Signature
ReadSafetyData (
[in]UInt32InSafetyConsumerID
[in]UInt32InMonitoringNumber
[in]ByteInFlags
[out] StructureOutSafetyData
[out]ByteOutFlags
[out]UInt32OutSPDU_ID_1
[out]UInt32OutSPDU_ID_2
[out]UInt32OutSPDU_ID_3
[out]UInt32OutSafetyConsumerID
[out]UInt32OutMonitoringNumber
[out]UInt32OutCRC
[out] StructureOutNonSafetyData)
;
Table 9 –ReadSafetyData Method Arguments
|
Argument |
Description |
|
InSafetyConsumerID |
“Safety Consumer Identifier”, see SafetyConsumerID in Table 13. |
|
InMonitoringNumber |
“Monitoring Number of the RequestSPDU”, see Clause 8.1.1.2 and MonitoringNumber in Table 13. |
|
InFlags |
“Byte with Non safety Flags from SafetyConsumer“, see Flags in Table 18. |
|
OutSafetyData |
“Safety Data”, see Clause 8.1.1.4. |
|
OutFlags |
“Byte with Safety Flags from SafetyProviderSafetyProvider“, see Flags in Table 19. |
|
OutSPDU_ID_1 |
“Safety PDU Identifier Part1”, see Clause 8.1.3.2. |
|
OutSPDU_ID_2 |
“Safety PDU Identifier Part2”, see Clause 8.1.3.2. |
|
OutSPDU_ID_3 |
“Safety PDU Identifier Part3”, see Clause 8.1.3.2. |
|
OutSafetyConsumerID |
“Safety Consumer Identifier”, see SafetyConsumerID in Table 13 and Table 17Table 13. |
|
OutMonitoringNumber |
Monitoring Number of the ResponseSPDU, see Clause 8.1.1.8, Clause 8.1.3.1, and Figure 13. |
|
OutCRC |
CRC-checksum over the ResponseSPDU, see Clause 8.1.3.5. |
|
OutNonSafetyData |
“Non-safe data” see Clause 8.1.1.10. |
Table 10 – ReadSafetyData Method AddressSpace definition
|
Attribute |
Value |
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|
BrowseName |
ReadSafetyData |
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References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
ModellingRule |
|
HasProperty |
Variable |
InputArguments |
Argument[] |
PropertyType |
Mandatory |
|
HasProperty |
Variable |
OutputArguments |
Argument[] |
PropertyType |
Mandatory |