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Fire Software-Triggered Timing Source (G Dataflow)

Last Modified: March 15, 2017

Fires a software-triggered timing source.

The internal tick counter of the Timed Loop advances by number of ticks when Fire Software-Triggered Timing Source executes. If the internal tick counter jumps past one or more Timed Loop periods, the Timed Loop regards those periods as missed periods. If you want to trigger multiple Timed Loop iterations with a single call to Fire Software-Triggered Timing Source, configure the mode of the Timed Loop to process data that becomes available during missed periods.

Programming Patterns

Use Create Timing Source to create a software-triggered timing source.

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trigger ID in

The numeric identifier of the software-triggered timing source. The valid range of trigger ID in values is 0-127. Because this input is an integer rather than a string, it is safe to use this node in time-critical code.

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number of ticks

Number of ticks to increment the internal tick counter of the timing source.

Default: 1

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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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trigger ID out

trigger ID in unchanged.

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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: This product does not support FPGA devices


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