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Get Next Interchange Warning (G Dataflow)

Last Modified: September 16, 2017

Returns the interchangeability warnings associated with the IVI session.

This node retrieves and clears the oldest instance in which the class driver recorded an interchangeability warning. Interchangeability warnings indicate that using your application with a different instrument might cause different behavior.

For this node to run properly, the buffer must contain at least as many elements as the value specified in the Buffer Size property.

NI-DMM performs interchangeability checking when the Interchange Check property is set to TRUE (1). This node returns an empty string in the interchange warning parameter if no interchangeability warnings remain for the session. In general, NI-DMM generates interchangeability warnings when a property that affects the behavior of the instrument is in a state that you did not specify.

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session in

Instrument identifier from previous NI-DMM nodes.

Default: None

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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

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session out

Instrument identifier for subsequent NI-DMM nodes.

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interchange warning

Next interchange warning for the IVI session.

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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.

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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