Emerson 752I Manuel D’Utilisation

 IPMI Message Protocol

752i User’s Manual

The Zircon PM implements a Device SDR Repository that contains Sensor Data Records for 
the Zircon PM, the FRU device, and each sensor. A system management controller may use 
the Get Device SDR command to read the repository and dynamically discover the capabili-
ties of the board. Please refer to the IPMI specification (listed in 

) for more informa-

tion on using Sensor Data Records and the Device SDR Repository.

Under certain circumstances, some sensors connected to the Zircon PM can generate Event 
Messages for the system management controller, as described below in 

Table 11-16:

To enable these messages, the system management controller must send a Set Event 
Receiver command to the Zircon PM, along with the address of the Event Receiver. 

 shows the format of an Event Message.

Table 11-17:

ProcProgress

0x0F

0x6F

0x70

Yes

ProcWatchdog

0x23

0x6F

0x50

Yes

OutflowTemp

0x01

0x01

0x60

Yes

InflowTemp

0x01

0x01

0x61

Yes

+5.0V

0x02

0x01

0x46

Yes

+3.3V

0x02

0x01

0x45

Yes

+2.5V

0x02

0x01

0x44

No

+1.8V

0x02

0x01

0x43

No

PPC750GL

0x02

0x01

0x42

No

PMC+3.3V

0x02

0x01

0x41

No

0

RsSA

Responder’s Slave Address (Address of Event Receiver)

1

NetFn/RsLUN

Net Function Code (0x04) in upper 6 bits; Responder’s LUN in lower 
2 bits

2

Chk1

Checksum #1

3

RqSA

Requester’s Slave Address (Address of our board on IPMB)

4

RqSeq/RqLUN

Request Sequence number in upper 6 bits; Requester’s LUN in low 
2 bits

5

Cmd

Command (Always 0x02 for event message)

6

EvMRev

Event Message Revision (0x04 for IPMI 1.5)