The signature of this Method is specified below.
Signature
UnloadByNodeId (
[in] 0:ExpandedNodeId Id
[out]0:Int32 Status
);
Table 80 specifies the Arguments.
Table 80 – UnloadByNodeId Method Arguments
|
Argument |
Description |
|
Id |
Expanded NodeId of the module to be unloaded |
|
Status |
0 – OK – Everything is OK 1 – E_SystemState – The system is not in correct state for this operation 2 – E_UnexpectedError – Unexpected Error during the method call 3 – E_ActiveAlarm – An Active Alarm prevents the system start 4 – E_AcknowledgeRequired – Condition needs to be acknowledged <0 – shall be used for vendor-specific errors. >0 – are reserved for errors defined by this and future standards |
The UnloadByNodeId Method is called by a Client to unload a task module from a task control. This only works if the task modules are expressed in the address space (7.22).
The possible Method result codes are formally defined in the table below.
Table 81 – Method Result Codes (defined in Call Service)
|
Result Code |
Description |
|
Good |
The task control operation succeeded |
|
Bad_InternalError |
The task control operation failed because of an internal error |
|
Bad_ResourceUnavailable |
The Method is locked by another Client/Clientgroup |
|
Bad_UserAccessDenied |
The caller is not allowed to call this Method. |
The UnloadByNodeId Method representation in the AddressSpace is formally defined in Table 82. This method might not always result in a state change from Ready to Idle.
Table 82 – UnloadByNodeId Method AddressSpace definition
|
Attribute |
Value |
||||
|
BrowseName |
UnloadByNodeId |
||||
|
References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
ModellingRule |
|
0:HasProperty |
Variable |
0:InputArguments |
0:Argument[] |
0:PropertyType |
0:Mandatory |
|
0:HasProperty |
Variable |
0:OutputArguments |
0:Argument[] |
0:PropertyType |
0:Mandatory |
|
ConformanceUnits |
|||||
|
Rob Task Control Operation |
|||||