NI-DAQmx Properties

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DAQmx Watchdog Properties

DAQmx Watchdog Properties

Use the DAQmx Watchdog properties to configure the watchdog timer of a device.

PropertyDescription
Timeout Specifies in seconds the amount of time until the watchdog timer expires. A value of -1 means the internal timer never expires. Set this input to -1 if you use an Expiration Trigger to expire the watchdog task. Details
Expiration Trigger:Trigger Type Specifies the type of trigger to use to expire a watchdog task. Details
Expiration Trigger:Trigger On Network Connection Loss Specifies the watchdog timer behavior when the network connection is lost between the host and the chassis. If set to true, the watchdog timer expires when the chassis detects the loss of network connection. Details
Expiration Trigger:Digital Edge:Source Specifies the name of a terminal where a digital signal exists to use as the source of the Expiration Trigger. Details
Expiration Trigger:Digital Edge:Edge Specifies on which edge of a digital signal to expire the watchdog task. Details
Expiration States:Active Physical Channels Specifies a physical channel or list of physical channels to modify. You cannot modify the expiration state of dedicated digital input physical channels. Details
Expiration States:Digital Output:Expiration State Specifies the state to which to set the digital physical channels when the watchdog task expires. You cannot modify the expiration state of dedicated digital input physical channels. Details
Expiration States:Analog Output:Output Type Specifies the output type of the analog output physical channels when the watchdog task expires. Details
Expiration States:Analog Output:Expiration State Specifies the state to set the analog output physical channels when the watchdog task expires. Details
Expiration States:Counter Output:Expiration State Specifies the state to set the counter output channel terminal when the watchdog task expires. Details
Status:Expired Indicates if the watchdog timer expired. You can read this property only while the task is running. Details
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