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IviSpecAn Make Marker Delta [DMK] (G Dataflow)

Last Modified: October 24, 2017

Specifies whether the active marker is a delta marker.

When this node is called with DeltaMarker true, the current active marker is changed to a delta marker and the associated reference marker is moved to the current position of the active marker. The current position becomes the reference point for marker values. The marker readout indicates the relative frequency (or time) separation and amplitude difference between the reference and active marker.

When this Delta Marker is set to false, the current marker is changed to a normal marker. The reference marker is determined by calling the IviSpecAn Query Reference Marker [DMK] node.

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Note  

If the current active marker is not enabled then this node enables the active marker.

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delta marker (False)

Specifies whether marker Delta is True or False. Depending on this value, the driver will set the marker to IVISPECAN_VAL_MARKER_TYPE_NORMAL or IVISPECAN_VAL_MARKER_TYPE_DELTA (see the VI help for more details). Valid Values: TRUE; FALSE Default Value: FALSE

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instrument handle out

The instrument handle that you obtain from the IviSpecAn Initialize Node or IviSpecAn Initialize With Options Node. The handle identifies a particular instrument session.

Default: None

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instrument handle

The instrument handle that you obtain from the IviSpecAn Initialize Node or IviSpecAn Initialize With Options Node. The handle identifies a particular instrument session.

Default: None

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error out

Error information.

The node produces this output according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.
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error in

Error conditions that occur before this node runs.

The node responds to this input according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Default: No error

Where This Node Can Run:

Desktop OS: Windows

FPGA: Not supported

Web Server: Not supported in VIs that run in a web application


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