Table Of Contents

DAQmx Create Timing Source (Digital Edge using Counter) (G Dataflow)

Version:
    Last Modified: February 6, 2017

    Creates a timing source that sends ticks to a Timed Loop on rising or falling edges of a digital signal.

    NI-DAQmx uses the counter you specify to detect the edges of the digital signal. Use this node to base a timing source on an external digital signal, or on an internal digital signal, not included in the instance of the DAQmx Create Timing Source node.

    connector_pane_image
    datatype_icon

    source

    source specifies the terminal to which you connect the digital signal you want to use for the timing source. A DAQmx terminal constant lists all terminals available on devices installed in the system. You also can specify a source terminal by wiring a string that contains a terminal name.

    datatype_icon

    counter

    counter specifies the name of the counter to use for the timing source. The DAQmx physical channel constant lists all physical channels, including counters, for devices installed in the system.

    You also can wire a string that contains a name of a counter to this input.

    datatype_icon

    edge

    edge specifies on which edges of the digital signal you want to send ticks to the Timed Loop.

    Name Description
    Falling

    Send ticks on falling edges.

    Rising

    Send ticks on rising edges.

    datatype_icon

    error in

    error in describes error conditions that occur before this node runs. This input provides standard 'error in' functionality.

    datatype_icon

    timing source name

    timing source name is the name to assign to the timing source this node creates.

    datatype_icon

    edge count

    edge count specifies the number of edges of the digital signal that must occur for the timing source to send a tick to the Timed Loop. For example, if you set this value to 3, the timing source sends a tick to the Timed Loop on every third edge of the digital signal.

    datatype_icon

    timing source out

    timing source out is the name of the timing source this node creates. Wire this output to the source input of the Input Node of a Timed Loop.

    If you specified a name for the timing source in the timing source name input, this output contains the same name. If you did not specify a name for the timing source, NI-DAQmx creates a name and sets this output to that name.

    datatype_icon

    error out

    error out contains error information. If error in indicates that an error occurred before this node ran, error out contains the same error information. Otherwise, error out describes the error status that this node produces.

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: LabVIEW NXG does not support FPGA devices


    Recently Viewed Topics