CL HIL Watchdog

Owning Palette: HIL/CD&Sim/Watchdog

Requirements: Quanser Rapid Control Prototyping Toolkit, LabVIEW 2020 or newer, Control Design and Simulation Module

Description

Activates and reloads the watchdog timer of a HIL board.

Required Inputs All required inputs must be wired. They always appear as terminals on the VI palette. They also appear in bold text in the context help window for the VI.

board in is a reference to a HIL Board instance that represents the open HIL board. This input must be wired to a valid HIL Board signal, as generated by a HIL Initialize VI.

Recommended Inputs or Dialog Box Options Recommended inputs need not to be wired. They may be selected to appear as terminals or dialog parameters, but show up as terminals by default. They appear in simple text in the context help window for the VI.

The timeout interval in seconds of the watchdog timer.

Outputs

	board out is a copy of the HIL Board instance passed to the board in input.
	expired indicates whether the watchdog timer has expired and the board is now in the watchdog state.

Details

Activates the watchdog timer of a HIL board. If the watchdog timer expires then the outputs of the HIL board will be reset to the values programmed in the HIL Initialize VI. This VI reloads the watchdog timer each time it is invoked. Watchdog timers are typically used to reset outputs when timing constraints are not met.

Once the watchdog expires, the board enters a "watchdog state" in which the outputs cannot be written. Use the CL HIL Watchdog Clear VI to clear this state so that the outputs may be written once again.

Feedthrough Behaviour

All input/output pairs of this function have direct feedthrough behaviour.

Examples

RCP CL HIL Watchdog Example

Targets

Target	Supported	Comments
RCP Windows (64-bit) Target	Yes	Fully supported.

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