Siemens SITRANS F series Operating Instructions Manual page 233

Modbus Data type /
register Size in bytes
10142 Float / 4
10168 Float / 4
10170 Float / 4
9208 Float / 4
9591 Unsigned / 2
9281 Unsigned / 2
9239 Unsigned / 2
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
Parameter Description
Lower range Lower process viscosi-
value viscosity ty value that is mapped
to the lower nominal
range boundary se-
lected by Frequency
value low (9237). Ap-
plicable if Process
value (9204) = 21 or
29.
Upper range Upper rate of change
value ROC value that is mapped to
the upper nominal
range boundary se-
lected by Frequency
value high (9235).
Applicable if Process
value (9204) = 36.
Lower range Lower rate of change
value ROC value that is mapped to
the lower nominal
range boundary se-
lected by Frequency
value low (9237). Ap-
plicable if Process
value (9204) = 36.
Damping value Time constant of
damping filter for fre-
quency output signal.
Fail-safe activa- Fail-safe activation
tion condition condition.
Fail-safe min. Minimum time the
time output stays in fail-safe
behavior.
Fail-safe behav- Frequency output reac-
ior tion in case of a fault.
A.9 Modbus holding registers tables
Default value Value range /
[units] Setting options
(units regis-
ter)
0.0 -
[m²/s]
(7524)
1.0 -
[m/s²]
(8564)
0.0 -
[m/s²]
(8564)
0.0 0.0 - 100.0
[s]
1
0: Bad status of se-
•
lected process value
1: Active Mainte-
•
nance alarm or Fail-
ure (NAMUR)
0 0 - 100
[s]
2
0: Frequency value
•
low
1: Frequency value
•
high
2: Last valid value
•
3: Disabled
•
4: Custom value
•
Modbus communication
Access
level
Read /
write
Read /
write
Read /
write
Read /
write
Read /
write
Read /
write
Read /
write
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