Temperature Monitor
The I/O controllers of Picolo U4 H.264 PCI-104 embed a temperature monitor. An I/O controller performs a board temperature measurement every 1.28 seconds, and reports the result in the Temperature element.
The application should check for regularly temperature and:
- produces a warning message when the temperature exceeds the recommended limit.
- prepares for a system shutdown when the temperature is approaching the absolute limit.
Overheating Protection
When the temperature monitor detects a temperature sensor malfunction, or measures a temperature exceeding the absolute limit, Picolo U4 H.264 PCI-104 is automatically placed into the reduced power mode.
In the reduced power mode:
- The board power consumption is significantly reduced, which will limit or stop the board temperature rise.
- All acquisitions are stopped and usually cause the application to fail.
The reduced power mode remains until the PC is restarted. The normal operation is resumed after board initialization, providing that the temperature sensor operates normally and the measured board temperature has sufficiently decreased, namely:
- below the recommended limit in case of a PC reset,
- below the absolute limit in case of a Power-On reset.