Table Of Contents

Configure Pulse Current Limit Range (G Dataflow)

Version:
    Last Modified: March 3, 2017

    Configures a range defining valid values that the pulse current limit and pulse bias current limit can be set to for the specified channel(s).

    The pulse current limit range setting is applicable only if the output function of the channel is set to Pulse Voltage.

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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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    pulse current limit range

    Range defining valid values, in amps, that the pulse current limit can be set to on the specified channel(s).

    For valid ranges, refer to specifications for the device.

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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.

    Setting Pulse Current Limit and Pulse Bias Current Limit

    Use the Configure Pulse Current Limit node and the Configure Pulse Bias Current Limit node to set the pulse current limit and pulse bias current limit respectively.

    Setting the Output Function of the Channel

    Use the Configure Output Function node to set the output function of the channel. The pulse current limit range configured with the Configure Pulse Current Limit Range node is applicable only if the channel is set to the Pulse Voltage output function.

    Range Considerations

    Selecting a range sets the resolution and the magnitude of the power supply or SMU output or measurement. A smaller range provides higher resolution and lower magnitude. A larger range provides lower resolution and higher magnitude.

    Changing Ranges

    When you configure an output range, if you request a range that differs from the ranges described in the device specifications, NI-DCPower selects the smallest range (highest resolution) available that accommodates the requested range. For example, on a device with only 20 mA and 200 mA current limit ranges, if you request 100 mA for the current range, NI-DCPower selects the 200 mA range.

    To change the range, the configured range must be able to accommodate the configured output value. For example, if the current limit range is 1 A and the current limit is 50 mA, changing the current limit range to 20 mA is not allowed because 50 mA is not possible in the new range.

    When changing ranges in the Running state, be aware of the order of the output range and output value changes because the configuration change takes effect immediately in this state. To avoid ordering issues, NI recommends that you configure the output range and output value in the Uncommitted state and then transition to the Running state. Alternatively, you can enable autoranging for the range you want to change.

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: Not supported

    Hardware Support:

    This node supports the following devices:

    • PXIe-4135
    • PXIe-4136/4137
    • PXIe-4138/4139


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