Home Support NI Product Manuals IVI Compliance Package 17.5 Manual

Table Of Contents

IviPwrMeter Initiate (G Dataflow)

Download Manual | Offline Viewer Required
Version:
    Last Modified: October 24, 2017

    Initiates a measurement on all enabled channels.

    When this node executes, the power meter leaves the Idle state and takes a measurement on all enabled channels. Use IviPwrMeter Fetch or IviPwrMeter Fetch Channel [CH] to obtain the result of the measurements.

    spd-note-note
    Note  

    This node does not check the instrument status. Typically, you call this node only in a sequence of calls to other low-level driver nodes. The sequence performs one operation. You use the low-level nodes to optimize one or more aspects of interaction with the instrument. If you want to check the instrument status, call IviPwrMeter Error-Query at the conclusion of the sequence.

    spd-note-note
    Note  

    This node performs interchangeability checking when the IviPwrMeter>>Inherent IVI Settings>>User Options>>Interchange Check property is set to TRUE. You may use the NI I/O Trace utility to view interchangeability warnings. Alternatively, you may use IviPwrMeter Get Next Interchange Warning to retrieve interchangeability warnings. For information on interchangeability checking, refer to the online help manual.

    connector_pane_image
    datatype_icon

    instrument handle

    Instrument handle that you obtain from IviPwrMeter Initialize or IviPwrMeter Initialize With Options. The handle identifies a particular instrument session.

    Default: None

    datatype_icon

    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

    datatype_icon

    instrument handle out

    Instrument handle that you obtain from IviPwrMeter Initialize or IviPwrMeter Initialize With Options. The handle identifies a particular instrument session.

    Default: None

    datatype_icon

    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

    Recently Viewed Topics