Siemens Climatix Series - Page 104

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Siemens Standard application AHU CE1P3977en_02
Building Technologies Detail pages: Inputs and outputs 01.02.2010
Parameter Range Function
Alarm config
– enblHighLimit
– enblLowLimit
– enblOffNormal
– enblFault
– self Release
– type Alarm
– evtOffNormal
– evtFault
– evtNormal
– Done
Alarm response: Definition of a trigger for an alarm
event.
– High-limit alarms are enabled.
– Low-limit alarms are enabled.
– Not available for analog inputs.
– Fault alarms (Reliability <> 0) are enabled.
– Automatic reset of fault and off normal alarms.
– Not used.
– Not used.
– Not used.
– Not used.
– Assumes changed parameters. Must be set after a
change.
Msg class OffNormal
– Danger (A)
– High (A)
– Low (B)
– Warning (C)
– No Alarm
Defines message class for OffNormal alarms (high limit;
Low limit):
– Plant goes to stop.
– Plant shuts down.
– The impacted plant portion switches off (e.g. the heat
pump).
– Message only.
– No alarm.
Msg class fault
– Danger (A)
– High (A)
– Low (B)
– Warning (C)
– No Alarm
Defines message class for fault alarms (reliability <> 0,
value = invalid):
– Plant goes to stop.
– Plant shuts down.
– The impacted plant portion switches off (e.g. the heat
pump).
– Message only.
– No alarm.
Value selector
– Hardware
– Comm
– Average
– Minimum
– Maximum.
– PreferedHW
– PrefComm
Select valid input value for the application:
– Value on hardware input.
– Value from communications.
– Average from the values on hardware input and from
communications. Alarm triggers (if enabled), if one of
the two values is invalid.
– Lowest value from the values on hardware input and
from communications. Alarm triggers (if enabled), if
one of the two values is invalid.
– Highest value from the values on hardware input and
from communications. Alarm triggers (if enabled), if
one of the two values is invalid.
– Value on hardware input has priority. The value from
communications assumed if invalid. Alarm triggers (if
enabled), if both values are invalid.
– Value from communications has priority. The value
from hardware input assumed if invalid. Alarm trig-
gers (if enabled), if both values are invalid.
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 104