imaqIOWatchdogConfigure
Format
rval = imaqIOWatchdogConfigure(IMAQIO_SESSION id, unsigned long timeout, IMAQIOExpirationAction expirationAction);
Purpose
Configures a watchdog timer on the NI-IMAQ I/O device.
Parameters
| Name | Type | Direction |
| id | IMAQIO_SESSION | input |
| timeout | unsigned long | input |
| expirationAction | IMAQIOExpirationAction | input |
Parameter Discussion
id is the ID of the session to configure the watchdog on.
timeout is the time, in milliseconds, that can occur without a reset before the watchdog occurs.
expirationAction is the action to take when the watchdog occurs:
| IMAQIO_EXPIRATION_ACTION_INDICATOR_ONLY | Sets the watchdog status attribute. |
| IMAQIO_EXPIRATION_ACTION_ASSERT_TTL_OUT_0 | Drives the TTL Out 0 line high when the watchdog occurs. |
| IMAQIO_EXPIRATION_ACTION_SHUTDOWN | Shuts down the NI-IMAQ I/O device when the watchdog occurs. Refer to imaqIOEnableShutdown for information about enabling shutdown on the NI-IMAQ I/O device. |
Return Value
This function returns 0 on success. On failure, this function returns an error code. For information about the error code, call imaqIOGetErrorText.