Table Of Contents

Assert Software Trigger (G Dataflow)

Version:
    Last Modified: March 3, 2017

    Sends a software trigger.

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    session in

    The resource to be used.

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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

    The resource to which a VISA session is opened.

    This output also includes the class for the session, which matches that of session in.

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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.

    Software Triggers for 488.2 Instruments (GPIB, VXI, TCP/IP, USB)

    This function sends an IEEE-488.2 software trigger to the addressed device, with the following bus-specific details:

    Bus Details
    GPIB VISA addresses the device to listen and sends the GPIB Group Execute Trigger (GET) message.
    VXI VISA sends the Word Serial Trigger command.
    USB VISA sends the trigger message ID on the bulk-out pipe.

    Software Triggers for Non-488.2 Instruments (Serial Instr, TCP/IP Socket, USB Raw)

    If the IO Protocol property is set to Serial-TCPIP-USB/488 Strings (4), Assert Software Trigger sends the string *TRG\n to the device. Otherwise, this operation is not valid.

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: Not supported


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