KROHNE MFC 400 FOUNDATION FIELDBUS - Manual (Page 39)

OPERATION
4
39
MFC 400
www.krohne.com 11/2013 - 4003221901 - AD MFC 400 FF R01 en
EU_0
EU at 0%
R/W The engineering unit value which represents the lower end of
range of the associated block parameter.
0.0
UNITS_INDEX
Units Index
R/W Device Description units code index for the engineering unit
descriptor for the associated block value.
Uninitialized
Setting:
All units are possible.
DECIMAL
Decimal
R/W The number of digits to the right of the decimal point which
should be used by an interface device in displaying the
specified parameter.
0
PV PV PV PV
Process Value
Either the primary analogue value for use in executing the
function or a process value associated with it.
-
Status R Digital transducers, unlike their analogue versions, can detect
faults that make the measurement bad or prevent the
actuator from responding. This additional, valuable
information will be passed along with each transmission of a
data value in the form of a status attribute.
0
Value R A numerical quantity entered by a user or calculated by the
algorithm.
0.0
PV_FTIME PV_FTIME PV_FTIME PV_FTIME
PV F Time
(Process Value
Filter Time)
R/W Time constant of a single exponential filter for the PV, in
seconds.
0
Setting:
0.0…60.0
SIMULATE SIMULATE SIMULATE SIMULATE
Simulate
Mix Allows the transducer analogue input or output to the block to
be manually supplied when "Simulate" is enabled. When
simulation is disabled, the simulate value and status track the
actual value and status.
-
Simulate Status R/W Used for the transducer status when simulation is enabled. 0
Simulate Value R/W Used for the transducer value when simulation is enabled. 0.0
Setting:
-3.39 E38 … +3.39 E38, - INF, + INF
Transducer Status R Status of value supplied by transducer. 0
Transducer Value R Current value supplied by transducer. 0.0
Simulate
En/Disable
R/W The parameter "SW_Simulated" in RB Block must be enabled. Disabled
Setting:
Uninitialized / Disabled / Active
STATUS_OPTS STATUS_OPTS STATUS_OPTS STATUS_OPTS
Status Option
R/W Options which the user may select in the block processing of
status.
Uninitialized
Setting:
Propagate Fault Forward / Uncertain if limited / BAD if
limited / Uncertain if Man.
UPDATE_EVT UPDATE_EVT UPDATE_EVT UPDATE_EVT
Update Event
This alert is generated by any change to the static data. -
Unacknowledged RW A discrete enumeration which is set to "Unacknowledged"
when an alarm occurs, and set to "Acknowledged" by a write
from a human interface device or other entity which can
acknowledge that the alarm/event has been noticed.
Uninitialized
Setting:
Uninitialized / Acknowledged / Unacknowledged
Update State R A discrete enumeration which gives an indication of whether
the alert has been reported.
Uninitialized
Setting:
Uninitialized / Reported / Not Reported
Parameter Parameter Parameter Parameter
DD name Access Description and settings Initial Value