Table Of Contents

Enqueue (G Dataflow)

Version:
    Last Modified: April 27, 2020

    Adds a Message to a queue.

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    message enqueuer in

    Reference needed to send a Message to an Actor.

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    message

    Message to send.

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    message priority

    Placement of the Message in the Message queue. This placement determines when the Actor will process the Message.

    Name Description
    Low Specifies that the Actor processes the Message after Messages of all other priorities. The Actor processes multiple low-priority Messages in the order it receives them.
    Normal Specifies that the Actor processes the Message after critical- and high-priority but before low-priority ones. The Actor processes multiple normal-priority Messages in the order it receives them.
    High Specifies that the Actor processes the Message first. The Actor processes multiple high-priority Messages in the order it receives them. Only emergency stop and last ack Messages supersede high priority Messages.

    Default: Normal

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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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    message enqueuer out

    A duplicate of message enqueuer 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.

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: Not supported

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


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