Siemens SITRANS F series Operating Instructions Manual page 197

Totalizer 3 settings
Table A- 47 Totalizer 3 settings
Modbus Data type /
register Size in bytes
8505 Unsigned / 2
8502 Unsigned / 2
8523 Float / 4
8525 Float / 4
8527 Float / 4
8529 Float / 4
8531 Float / 4
8506 Float / 4
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
Parameter Description
Process value Select process value
for totalization.
Fail-safe behav- Behavior of the totaliz-
ior er during the oc-
curence of bad input
value.
Volume upper Exceeding this limit
alarm limit causes an alarm when
volume flow is selected
as input.
Volume upper Exceeding this limit
warning limit causes a warning
when volume flow is
selected as input.
Volume lower Falling below this limit
warning limit causes a warning
when volume flow is
selected as input.
Volume lower Falling below this limit
alarm limit causes an alarm when
volume flow is selected
as input.
Volume alarm Hysteresis that affects
hysteresis the alarm and warning
limits when volume
flow is selected as
input.
Mass upper Exceeding this limit
alarm limit causes an alarm when
mass flow is selected
as input.
A.9 Modbus holding registers tables
Default value Value range /
[units] Setting options
(units regis-
ter)
0
0: Cut-off filtered
•
mass flow
1: Cut-off filtered
•
volume flow
27: Cut-off filtered
•
standard volume flow
(only hydrocarbon
and gas applications)
0
0: RUN; totalization is
•
continued using the
bad input value.
1: HOLD; totalization
•
is stopped.
2: MEMORY; totali-
•
zation is continued
based on the last in-
coming good value.
Max. floating
point value
[m ]
3
(8521)
Max. floating
point value
[m ]
3
(8521)
Min. floating
point value
[m ]
3
(8521)
Min. floating
point value
[m ]
3
(8521)
0.0 -
[m ]
3
(8521)
Max. floating
point value
[kg]
(8520)
Modbus communication
Access
level
Read /
write
Read /
write
Read /
write
Read /
write
Read /
write
Read /
write
Read /
write
Read /
write
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