Configure Data Voltage Custom Levels

Configures the voltage levels of the data channels using the specified 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 Data High or Data Low properties to get the actual value of the configured custom levels.

Inputs/Outputs

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session in

Instrument session obtained from the Initialize Acquisition Sessionnode, the Initialize Generation Sessionnode, or the Initialize External Calibrationnode.

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channel list

The channels you want to apply settings to. Leave channel list blank to apply to all channels.

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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

Default value: 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 Sessionnode or the Initialize Generation Sessionnode.

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error out

Error information.

The node produces this output according to standard error behavior.

Standard Error Behavior

Using this 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 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.