4 monitoring/control functions, 1 smbus api, 2 function overview – ADLINK PXES-2590 User Manual
Page 43: Smbus api, Function overview, 4monitoring/control functions

Monitoring/Control Functions
33
PXES-2590
4
Monitoring/Control Functions
The monitoring/control function library can be used to create a
customized program for monitoring and controlling the PXES-
2590. The smbus interface on the system controller provides
access to system monitoring functions, including:
X
Read backplane/chassis data such as power/temperature/
fan speed
X
Set thresholds for power/temperature/fan
X
Read firmware version
X
Set fan speeds
The following abbreviations are used in this chapter:
4.1 SMBus API
The PXES-2590 SMBus slave address of the system monitoring
function is 0xC6h.
4.2 Function Overview
The following table shows all commands to access monitored data
MA Master
Address
MCU
Microcontroller on backplane.
SA
Slave Address (= 0x32)
SC
System controller located in slot 1
SMB
System Management Bus
Command
Function
Access
0x02
Read Alarm Status
R
0x04
Read 5V Voltage
R
0x06
Read 3.3V Voltage
R
0x08
Read +12V Voltage
R
0x0A
Read -12V Voltage
R
0x0C
Read 5Vsb Voltage
R
0x10
Read Temperature 1
R
0x12
Read Temperature 2
R
0x14
Read Temperature 3
R