5 Operation
Levelflex M FMP 40 with Foundation Fieldbus
50
EHauser
Output response parameters
Alarm parameters
Alarm priorities
Alarm status
Parameter
Description
LOW_CUT
Not relevant to level measurement!
Determines a threshold for square root linearization below which the output
value is set to zero.
PV_FTIME
Sets the time constant for the output value.
Parameter
Description
ACK_OPTION
Sets the way in which alarms and warnings are to be acknowledged.
ALARM_HYS
Sets the hysteresis (in output engineering units) for all configured alarms.
A hysteresis of e.g. 2% on a HI_HI_LIMIT of 95% would cause the alarm to
activate when the level reaches 95% and to deactivate when the level drops
below 93%.
A hysteresis of e.g. 2% on a LO_LO_LIMIT of 5% would cause the alarm to
activate when the level drops below 5% and to deactivate when the level rises to
7%.
HI_HI_PRI
The priority (1 – 15) of the HI_HI alarm
HI_HI_LIM
Sets the HI_HI alarm limit in output engineering units
HI_PRI
The priority (1 – 15) of the HI alarm
HI_LIM
Sets the HI warning limit in output engineering units
LO_PRI
The priority (1 – 15) of the LO alarm
LO_LIM
Sets the LO warning limit in output engineering units
LO_LO_PRI
The priority (1 – 15) of the LO_LO alarm
LO_LO_LIM
Sets the LO_LO alarm limit in output engineering units
Priority
Description
0
Alarm is suppressed
1
Recognised by the system but not reported
2
Reported to the operator, but does not require his attention
3 - 7
Advisroy alarms of increasing priority
8 - 15
Critical alarms of increasing priority
Parameter
Description
HI_HI_ALM
The status of the HI_HI alarm
HI_ALM
The status of the HI alarm
LO_ALM
The status of the LO alarm
LO_LO_ALM
The status of the LO_LO alarm
