ADLINK PXES-2590 - Manual (Page 61)

Monitoring/Control Functions 51
PXES-2590
*Write +12V Alarm Threshold (command 0xB6)
Writes the +12V Alarm Threshold.
Use the SMB write word to write this word data
Data format is as follows:
*Write -12V Alarm Threshold (command 0xB8)
Writes the -12V Alarm Threshold.
Use the SMB write word to write this word data
SMB Dir Offset Value Description
Write word > 0 SA Slave address
> 1 0xB6 Command code
> 2 0-255 Low byte data
> 3 0-255 High byte data
Bit Description
7..0 +12V Under Voltage Alarm Threshold. Unsigned 8-
bit data, the LSB is 0.1%. If the +12V voltage is lower
than this threshold, the MCU triggers a voltage
alarm. The threshold range is between 0 and 250
15..8 +12V Over Voltage Alarm Threshold. Unsigned 8-bit
data, the LSB is 0.1%. If the +12V voltage is higher
than this threshold, the MCU triggers a voltage
alarm. The threshold range is between 0 and 250
SMB Dir Offset Value Description
Write word > 0 SA Slave address
> 1 0xB8 Command code
> 2 0-255 Low byte data
> 3 0-255 High byte data