UA Part 15: Safety - 6.2.2.6 Objects SafetyProviderParameters and SafetyConsumerParameters

Figure 6 shows the safety parameters for the SafetyProvider and the SafetyConsumer.

Figure 6 – Safety parameters for the SafetyProvider and the SafetyConsumer

Table 12 shows the definition for the SafetyProviderParametersType. Refer to 6.3.3.3 for more details on the Safety Parameter Interface (SPI) of the SafetyProvider.

Table 12 – SafetyProviderParametersType definition

Attribute	Value
BrowseName	SafetyProviderParametersType
IsAbstract	False
References	Node class	BrowseName	DataType	TypeDefinition	Modelling rule
Subtype of BaseObjectType
HasProperty	Variable	SafetyProviderIDConfigured	UInt32	PropertyType	Mandatory
HasProperty	Variable	SafetyProviderIDActive	UInt32	PropertyType	Mandatory
HasProperty	Variable	SafetyBaseIDConfigured	Guid	PropertyType	Mandatory
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
HasProperty	Variable	SafetyProviderDelay	UInt32	PropertyType	Mandatory
HasProperty	Variable	SafetyServerImplemented	Boolean	PropertyType	Mandatory
HasProperty	Variable	SafetyPubSubImplemented	Boolean	PropertyType	Mandatory
Conformance units
SafetyProviderParameters

The parameters for SafetyProviderID and SafetyBaseID exist in pairs for “Configured” and “Active” states:

The “[...]Configured” parameters shall always deliver the values as configured via the SPI. The “[...]Active” parameters shall deliver:

the corresponding “[...]Configured” values if the system is still offline;
the values which have been set during runtime via the SAPI parameters (SafetyProviderID, SafetyBaseID);
the corresponding “[...]Configured” values if the active values have been set to zero via the SAPI parameters (SafetyProviderID, SafetyBaseID).

The Property SafetyBaseIDConfigured is shared for all SafetyProviders with the same SafetyBaseIDConfigured value. If multiple instances of SafetyObjectsType are running on the same Node, it is a viable optimization that a Property SafetyBaseIDConfigured is referenced by either multiple SafetyProviders or SafetyConsumers, or both.

For releases up to Release 2.0 of the document, the value for the SafetyStructureSignatureVersion shall be 0x0001 (see RQ7.21 in 7.2.3.5).

Table 13 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 to only upload the SafetyStructureSignature to the device, but not SafetyStructureIdentifier and SafetyStructureSignatureVersion in order to save either bandwidth or memory, or both. Refer to 6.3.4.4 for more details on the Safety Parameter Interface (SPI) of the SafetyConsumer.

Table 13 – SafetyConsumerParametersType definition

Attribute	Value
BrowseName	SafetyConsumerParametersType
IsAbstract	False
References	Node class	BrowseName	DataType	TypeDefinition	Modelling rule
Subtype of BaseObjectType
HasProperty	Variable	SafetyProviderIDConfigured	UInt32	PropertyType	Mandatory
HasProperty	Variable	SafetyProviderIDActive	UInt32	PropertyType	Mandatory
HasProperty	Variable	SafetyBaseIDConfigured	Guid	PropertyType	Mandatory
HasProperty	Variable	SafetyBaseIDActive	Guid	PropertyType	Mandatory
HasProperty	Variable	SafetyConsumerIDConfigured	UInt32	PropertyType	Mandatory
HasProperty	Variable	SafetyConsumerIDActive	UInt32	PropertyType	Mandatory
HasProperty	Variable	SafetyProviderLevel	Byte	PropertyType	Mandatory
HasProperty	Variable	SafetyStructureSignature	UInt32	PropertyType	Mandatory
HasProperty	Variable	SafetyStructureSignatureVersion	UInt16	PropertyType	Optional
HasProperty	Variable	SafetyStructureIdentifier	String	PropertyType	Optional
HasProperty	Variable	SafetyConsumerTimeout	UInt32	PropertyType	Mandatory
HasProperty	Variable	SafetyOperatorAckNecessary	Boolean	PropertyType	Mandatory
HasProperty	Variable	SafetyErrorIntervalLimit	UInt16	PropertyType	Mandatory
HasProperty	Variable	SafetyClientImplemented	Boolean	PropertyType	Mandatory
HasProperty	Variable	SafetyPubSubImplemented	Boolean	PropertyType	Mandatory
Conformance units
SafetyConsumerParameters

The “[...]Configured” parameters shall always deliver the values as configured via the SPI. The “[...]Active” parameters shall deliver:

the corresponding “[...]Configured” values if the system is still offline;
the values which have been set during runtime via the SAPI parameters (SafetyProviderID, SafetyBaseID, SafetyConsumerID);
the corresponding “[...]Configured” values if the active values have been set to zero via the SAPI parameters (SafetyProviderID, SafetyBaseID, SafetyConsumerID).