Table Of Contents

Configure Output Resistance (G Dataflow)

Last Modified: April 2, 2018

Configures the output resistance that the device attempts to generate for the specified channel(s).

The channel must be enabled for the specified output resistance to take effect.

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session in

Instrument session obtained from the Initialize With Channels node.

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channel name

Output channel(s) to which to apply this configuration value.

Channel Name Syntax

You can input the channel name with the following options:
  • A single channel, such a 0
  • A list of channels, such as 0,1 or 3,2,1,0.
  • A range of channels, such as 0-7 or 0:7.
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Note  

The order of channels in a list is important. NI-DCPower performs configurations of multiple output channels in the order the channels occur in the list.

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resistance

Output resistance, in ohms, for the specified channel.

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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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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.

Enabling the Output Channel

Refer to the Configure Output Enabled node for more information about enabling the output channel.

Output Function Considerations Per Device

For PXIe-4141/4143/4145 devices, output resistance is only supported if the output function of the channel is set to DC Voltage using the Configure Output Function node.

For PXIe-4135, PXIe-4137, and PXIe-4139 devices, output resistance is supported if the output function of the channel is set to DC Current or DC Voltage using the Configure Output Function node.

Voltage Drop

The device actively regulates the current and voltage to reach the specified output resistance, although in DC Voltage output mode, the voltage at the output experiences a "virtual drop" that is proportional to its current.

Where This Node Can Run:

Desktop OS: Windows

FPGA: Not supported

Web Server: Not supported in VIs that run in a web application

Hardware Support:

This node supports the following hardware:
  • PXIe-4135
  • PXIe-4137
  • PXIe-4139
  • PXIe-4141
  • PXIe-4143
  • PXIe-4145


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