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Configure Idle State (Configure Idle State String) (G Dataflow)

Version:
Last Modified: September 27, 2017

Sets the state of the channels when the dynamic generation operation is idle using a string format

The operation may be idle when the generation operation completes normally, when the generation operation pauses from an active Pause trigger, or when the generation operation terminates because of an underflow error.

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session in

Instrument session obtained from the Initialize Acquisition Session node, the Initialize Generation Session node, or the Initialize External Calibration node.

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idle state

The idle state of a dynamic generation operation.

This expression is composed of characters:

  • X or x—Retains the previous value.
  • 1—Sets the channel to logic high.
  • 0—Sets the channel to logic low.
  • Z or z—Disables the channel (sets it to a high-impedance state).

The first character in idle state corresponds to the first channel in channel list. The number of characters in pattern must equal the number of channels specified in channel list, or the node returns an error. For example, if you are trying to make three channels tristate, the idle state control needs to be "ZZZ" without any commas or spaces.

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channel list

The channels being configured.

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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 that identifies the session in all subsequent node calls.

The session out parameter is obtained from the Initialize Acquisition Session node or the Initialize Generation Session node.

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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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