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Configure Voltage (Configure Trigger Voltage Custom Levels) (G Dataflow)

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Last Modified: September 5, 2019

Configures the voltage levels of the trigger channels using user-defined high and low levels.

Refer to the device documentation for possible voltage restrictions.

When you use this node, NI-HSDIO coerces the values you specify according to the voltage levels supported by your device. Refer to your device specifications for more information about the supported voltage levels. After you commit the session, you can read the Trigger High or Trigger Low properties to get the actual value of the configured custom levels.

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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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high level

The voltage that identifies the high level.

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low level

The voltage that identifies the low level.

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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.

Using this node with the PXI--6541/6542

If you are using a PXI-6541/6542 device for generation sessions, you must set high level to the appropriate logic family value, and you must set low level to 0.

For acquisition sessions with the NI 6541/6542, select the same value for high level and low level from the following list: 0.9 V, 1.25 V, or 1.65 V.

Using this node with the PXIe-6544/6545/6547/6548

If you are using an PXIe-6544/6545/6547/6548 device for generation sessions, you must set low level to 0. For acquisition sessions with the PXIe-6544/6545/6547/6548, you must select the same value for high level and low level.

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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