SNtoUnallocated – This method sends unsolicited serial numbers to be placed into the unallocated state to an OPC UA Server that is performing serial number management for a specific Serial Number Pool.

The signature of this Methodis specified below. Table 15and Table 16specify the Argumentsand AddressSpacerepresentation, respectively.

Signature

SNtoUnallocated (

[in]OPENSCSSNCollectionDataType SNCollection

[in]OPENSCSKeyValueDataType[]PoolSelectionCriteria

[in]String SNFormat

[out]OPENSCSReturnEnum ReturnStatus

);

Table 15– SNtoUnallocated Method Arguments

Argument

Description

SNCollection

The Serial Number Collection containing Serial Numbers.

PoolSelectionCriteria

Identified value to be used to identify the pool that unused Serial Numbers can be sent back to.

If the pool selection criteria is not known to the server, then an “Invalid selection Criteria” error is returned.

SNFormat

The serial number format of the pushed serial numbers.

If the Serial Number Format is not known to the method provider, then an “Invalid Serial Number Format” error is returned.

ReturnStatus

Returns the status of the method execution.

Method Result Codes are defined as part of the Call service (see OPC 10000-4and Table 95).

Table 16– SNtoUnallocated Method AddressSpace Definition

Attribute

Value

BrowseName

SNtoUnallocated

IsAbstract

True

References

NodeClass

BrowseName

DataType

TypeDefinition

ModellingRule

0:HasProperty

Variable

InputArguments

Argument[]

0:PropertyType

Mandatory

0:HasProperty

Variable

OutputArguments

Argument[]

0:PropertyType

Mandatory