NI-DAQmx .NET Framework 4.0 API Reference

DaqSystem.CreateWatchdogTimerTask Method

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Updated2023-02-21
2 minute(s) read

Creates a task to configure and control the watchdog timer of a static DIO device. The timer activates when you start the task.

Namespace: NationalInstruments.DAQmx
Assembly: NationalInstruments.DAQmx (in NationalInstruments.DAQmx.dll) Version: 20.7.40.49302

Syntax

public Task CreateWatchdogTimerTask(
	string taskName,
	string device,
	double timeout,
	string[] physicalChannels,
	WatchdogDOExpirationState[] expirationStates
)

Public Function CreateWatchdogTimerTask ( 
	taskName As String,
	device As String,
	timeout As Double,
	physicalChannels As String(),
	expirationStates As WatchdogDOExpirationState()
) As Task

Parameters

taskName: Type: SystemString
The name of the task to create. If you specify Empty or , the NI-DAQmx driver assigns a unique name to the new task.
device: Type: SystemString
The name of the device for which to create a watchdog timer task.
timeout: Type: SystemDouble
The amount of time in seconds until the watchdog timer expires. A value of -1 means the internal timer never expires. Set timeout to -1 if you use an Expiration Trigger to expire the watchdog task.
physicalChannels: Type: SystemString
The physical channel names for which to define watchdog expiration states. Each value in this vector specifies a physical channel string that is assigned the expiration state at the corresponding position in the expirationStates parameter. You cannot modify the expiration state of dedicated digital input physical channels.
expirationStates: Type: NationalInstruments.DAQmxWatchdogDOExpirationState
The state to which to set the digital physical channel when the watchdog timer expires.

Return Value

Type: Task
The Task that this method creates.

Exceptions

Exception	Condition
DaqException	The NI-DAQmx driver returned an error.

Remarks

Use the properties and methods on Task and Watchdog to configure and control the watchdog timer task.

NI-DAQmx .NET Framework 4.0 API Reference

Table of Contents

DaqSystem.CreateWatchdogTimerTask Method

Syntax

Parameters

Return Value

Exceptions

Remarks

See Also

Reference

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