KROHNE IFC 090 Supplementary Installation & Operation Instructions page 19

Supplementary Documentation
IFC090, IFC090 i with FF
IFC090 FF 01/2005
Parameter
LO_LIM
LO_LO_ALM
LO_LO_LIM
LO_LO_PRI
LO_PRI
LOW_CUT
KROHNE Messtechnik GmbH & Co. KG · Ludwig-Krohne-Str. 5 D-47058 Duisburg
Tel.: 0203-301 309 Fax: 0203-301389 · E-mail: krohne@krohne.de
IFC090-FF Block Description
Access Description
The limit value in engineering units as of the LO_ALM is active (with subject
R/W
to LO_PRI).
see also: LO_PRI, LO_LAM
With subject to the setting of LO_LO_PRI, LO_LO_ALM shows details about
R
the high alarm as acknowledge state and time stamp. See LO_LO_PRI for
details.
see also: LO_LO_PRI, LO_LO_LIM
The limit value in engineering units as of the LO_LO_ALM is active (with
R/W
subject to LO_LO_PRI).
see also: LO_LO_PRI, LO_LO_LAM
Priority of the low alarm that specifies the behavior if OUT reaches
R/W
LO_LO_LIM. The following values are valid:
0 exceeding of low limit isn't been evaluated
1 exceeding of low limit is been evaluated, but
acknowledgement isn't necessary
2-7 exceeding of low limit is been evaluted and reported
according to the given priority (2 = low priority, 7 = high
priority).
Status of OUT changes to
Good(NC):UnackAdvisoryAlarm:LowLimited.
8-17 exceeding of low limit is been evaluated and reported
according to the given priority (2 = low priority, 7 = high
priority).
Status of OUT changes to Good(NC):
UnackCriticalAlarm:LowLimited.
Priority of the low low alarm that specifies the behavior if OUT reaches
R/W
LO_LIM. The following values are valid:
0 exceeding of low low limit isn't been evaluated
1 exceeding of low low limit is been evaluated, but
acknowledgement isn't necessary
2-7 exceeding of low low limit is been evaluted and reported
according to the given priority (2 = low priority, 7 = high
priority).
Status of OUT changes to
Good(NC):UnackAdvisoryAlarm:LowLimited.
8-18 exceeding of low low limit is been evaluated and reported
according to the given priority (2 = low priority, 7 = high
priority).
Limit used if option 'Low cutoff' is set (see IO_OPTS for details). A value of
R/W
zero percent of scale is used in block processing if the transducer value falls
below the LOW_CUT limit. This feature may be used to eliminate noise near
zero for a flow sensor.
Status of OUT changes to
Good(NC):UnackCriticalAlarm:LowLimited.
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