TheSilence Methodis used silence a specific Alarminstance. It is only available on an instance of an AlarmConditionTypethat also exposes the SilenceState. Normally, the NodeIdof the Objectinstance is passed as the ObjectIdto the Call Service. However, some Serversdo not expose Conditioninstances in the AddressSpace. Therefore, Serversshall allow Clientsto call the Silence Methodby specifying ConditionIdas the ObjectId.The Methodcannot be called with an ObjectIdof the AlarmConditionType Node.

Signature

Silence();

This method has no arguments.

Methodresult codes in Table 51(defined in Callservice)

Table 51– Silence result codes

Result Code

Description

Bad_MethodInvalid

The MethodIdprovided does not correspond to the ObjectIdprovided. See 10000-4for the general description of this result code.

Bad_NodeIdInvalid

Used to indicate that the specified ObjectIdis not valid or that the Methodwas called on the AlarmConditionType Node.

See 10000-4for the general description of this result code.

Comments

If the instance is not currently in an audible state, the command is ignored.

Table 52specifies the AddressSpacerepresentation for the Silence Method.

Table 52– Silence Method AddressSpace definition

Attribute

Value

BrowseName

Silence

References

NodeClass

BrowseName

DataType

TypeDefinition

ModellingRule

AlwaysGeneratesEvent

ObjectType

AuditConditionSilenceEventType

Defined in 5.10.10

ConformanceUnits

A & C Silencing

If Auditingis supported, this Methodshall generate an Eventof AuditConditionSilenceEventTypefor all invocations of the Method.