The Reset Method is used reset a latched Alarm instance. It is only available on an instance of an AlarmConditionType that exposes the LatchedState. Normally, the NodeId of the Object instance is passed as the ObjectId to the Call Service. However, some Servers do not expose Condition instances in the AddressSpace. Therefore, Servers shall allow Clients to call the Reset Method by specifying ConditionId as the ObjectId. The Method cannot be called with an ObjectId of the AlarmConditionType Node.
Signature
Reset();
This method has no arguments.
Method result codes in Table 46 (defined in Call service)
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Result Code |
Description |
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Bad_MethodInvalid |
The MethodId provided does not correspond to the ObjectId provided. See 10000-4 for the general description of this result code. |
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Bad_NodeIdInvalid |
Used to indicate that the specified ObjectId is not valid or that the Method was called on the AlarmConditionType Node. See 10000-4 for the general description of this result code. |
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Bad_InvalidState |
The Alarm instance was not latched or is still active or still requires acknowledgement / confirmation. For an Alarm Instance to be reset it must have been in Alarm, and returned to normal and have been acknowledged/confirmed prior to being reset. |
Table 47 specifies the AddressSpace representation for the Reset Method.
Table 47 – Reset Method AddressSpace definition
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Attribute |
Value |
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BrowseName |
Reset |
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References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
ModellingRule |
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AlwaysGeneratesEvent |
ObjectType |
AuditConditionResetEventType |
Defined in 5.10.11 |
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ConformanceUnits |
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A & C Latched State |
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If Auditing is supported, this Method shall generate an Event of AuditConditionResetEventType for all invocations of the Method.