ADLINK PXES-2590 - Manual (Page 63)

Monitoring/Control Functions 53
PXES-2590
Use the SMB write word to write this word data:
Data format is as follows::
*Write Temperature Alarm Threshold (command 0xBE)
Writes the Temperature Alarm Threshold.
Use the SMB write word to write this word data:
Data format is as follows:
SMB Dir Offset Value Description
Write word > 0 SA Slave address
> 1 0xBC Command code
> 2 0-255 Low byte data
> 3 0-255 High byte data
Bit Description
15..0 Fan Speed Alarm Threshold. Unsigned 16-bit data,
the LSB is 1rpm. If any of the fan speed is lower
than this threshold, the MCU triggers a fan speed
alarm. The threshold range is between 1 and 10000
SMB Dir Offset Value Description
Write word > 0 SA Slave address
> 1 0xBE Command code
> 2 0-255 Low byte data
> 3 0-255 High byte data
Bit Description
7..0 Temperature Alarm Threshold. Unsigned 8-bit data, the
LSB is 1°C. If MCU detects any of the backplane
temperature (Temperature 0~7) is higher than the
threshold, the MCU triggers a temperature alarm. The
threshold range is between 0 and 110
15..8 Reserved.