SES Element Thresholds
Some SES elements, such as voltage sensors, current sensors, and temperature sensors, have a thresholding function. This allows an enclosure to detect and report unacceptable environmental conditions. The SCSI standard allows for two different threshold levels, noncritical (warning) and critical. Also, each threshold has a minimum and maximum value. So for example the threshold values for the 12 volt power-supply could be set as follows:
- Minimum critical - 10.8 volts
- Minimum noncritical - 11.4 volts
- Maximum noncritical - 12.6 volts
- Maximum critical - 13.2 volts
Threshold values are set by a Send Diagnostic command to the Threshold Out diagnostic page (05h). Threshold values can be interrogated by a Receive Diagnostic Results command to the Threshold In diagnostic page (05h) with the PCV bit set to one.
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