Table Of Contents

Query Output State (G Dataflow)

Last Modified: September 16, 2017

Queries the specified output channel to determine the channel state.

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session in

Instrument session obtained from the Initialize With Channels node.

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channel name

Output channel to query.

The output state can be queried for only one channel at a time.

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output state

Output state of the output channel that is being queried.

Name Value Description
Constant Voltage 0 The channel is maintaining a constant voltage at its output.
Constant Current 1 The channel is maintaining a constant current at its output.

Default: Constant Voltage (0)

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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

Handle used to identify the session in all subsequent NI-DCPower node calls.

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in state?

Boolean value that indicates whether the power supply or SMU output channel is in the specified output state.

True Output channel is in the specified output state.
False Output channel is not in the specified output state.
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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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