Threshold Based Sensors - Advantech FWA-3051 User Manual

5.5.2 Threshold Based Sensors

Sensor event thresholds are classified as Non-critical (NC), Critical (CR), or Non-recoverable (NR). This
classification is possible in both directions (lower and upper).
The threshold-based sensor event data format is according to the IPMI specification. All defined sensors in
this sub-section will use below described event data bytes 1 – 3:
Table 5.5-2 Threshold based sensor event data format.
Event Data 1
[7:6] = 01b (Trigger reading in
byte 2),
[5:4] = 01b (Trigger threshold
in byte 3),
[3:0] = Offset (threshold
event)
All thresholds specified subsequent will generate events (assertion and de-assertion event direction).
Unused thresholds have the event generation disabled (event mask bits in SDR data not set).
Table 5.5-3 Threshold based sensor supported events.
Sensor Types
Temperature,
Voltage,
Current,
Fan Speed,
Power
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Event Data 2
Reading that triggered the
event generation
Type Codes Generic Offset
01h, 00h
02h,
01h
03h,
02h
0Bh
03h
04h
05h
06h
07h
08h
09h
Event Data 3
Threshold value that was
crossed
Event
Lower Non-critical - going low
Lower Non-critical - going high
Lower Critical - going low
Lower Critical - going high
Lower Non-recoverable - going low
Lower Non-recoverable - going high
Upper Non-critical - going low
Upper Non-critical - going high
Upper Critical - going low
Upper Critical - going high
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