Move Method is used to adjust the opening size in a choke.

Method Declaration:

Move(

[in] Position Float,

[in] OverrideInterlocks Boolean,

[in] SEM SEMEnum

);

Table 21 – Choke Move Method Arguments

Argument	Description
Position	A number (in percent) indicating the percent open to be moved to when operated.
OverrideInterlocks	Boolean indicating if the open or close command should override any defeatable interlocks
SEM	The selection of which SEM to send the command to.

Method result codes are defined as part of the Call Service (see OPC UA Services Part 4 – Services specification). They are described in Table 94 for ease of reference.

Comments:

The Move Method initiates a move command. Parameters include the position value in percent, overriding of any interlocks and the SEM selection to use for the command. After receiving the new commanded position, the choke will start to move. The Method will complete when the command has been accepted. The move operation may or may not have completed when the Method returns. The Method returns errors only if the operation cannot be started. The Client must monitor the Moving Variable to determine when the move operation actually finishes.

If a Server does not support an Override of defeatable interlocks, then this parameter will be ignored by the Server. If any interlocks are active the appropriate error code is returned.

If a Server does not support the selection of SEM, this parameter is ignored.

Table 22 specifies the AddressSpace representation for the ChokeMoveMethod.

Table 22 – Choke Move Method AddressSpace Definition

Attribute	Value
BrowseName	Move
References		Node Class	BrowseName	DataType	TypeDefinition	ModellingRule
HasProperty		Variable	InputArguments	Argument[]	PropertyType	Mandatory