Alarm Buffer - Siemens SIMATIC S7-1200 Manual

5 Operating the Application Examples
5.5

Alarm buffer

This display lists the following alarm messages including time stamp and status in
text form as alarm buffer:

System alarms (marked by a prefixed "$")

Motor status of the individual fans (input register D011 – marked by a
prefixed "!" – red background)

Warnings of the individual fans
(input register D012 – orange background)
Both the incoming event (status "I") and the outgoing event (status "IO") are
recorded.
Figure 5-9
Note For more information about the input registers D011 (motor status) and D012
(warning), see chapter
papst series 84 / 112 / 150 / 200" V5.00 (see chapter 6.3).
Controlling several fans (ebm-papst) via Modbus RTU
Entry ID: 109476801, V2.0,
and the MODBUS parameter specification for "ebm-
5.2.1
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