Siemens SITRANS F series Operating Instructions Manual page 206

Modbus communication
A.9 Modbus holding registers tables
Modbus Data type /
register Size in bytes
10066 Float / 4
8807 Float / 4
8814 Unsigned / 2
8815 Float / 4
7146 Float / 4
8886 Float / 4
8888 Float / 4
204
Parameter Description
Lower range Lower rate of change
value ROC value that is mapped to
the lower nominal
range boundary se-
lected by current mode
(8806). Applicable if
Process value (8802) =
36.
Damping value Time constant of
damping filter for cur-
rent output signal.
Fail-safe behav- Current output reaction
ior in case of a fault.
Fail-safe value Output value in case of
a fault and when Fail-
safe behavior (8814) is
configured to 4.
Forced value Forced value when
forcing is active.
Offset adjust- Command to trim the
ment lower range value of
the loop current.
Simulate a loop current
of 4.0 mA, measure the
current with an ampere
meter and write the
measured value to this
register.
Gain adjust- Command to trim the
ment upper range value of
the loop current.
Simulate a loop current
of 20.0 mA, measure
the current with an
ampere meter and
write the measured
value to this register.
Default value Value range /
[units] Setting options
(units regis-
ter)
0.0 -
[m/s²]
(8564)
0.0 0.0 - 100.0
[s]
0
0: Lower fault current
•
1: Upper fault current
•
2: Last valid value
•
3: Disabled
•
4: Custom value
•
0.0 0.0 - 25.0
[mA]
4.0 3.5 - 25.0
[mA]
[mA] 0.0 - 25.0
[mA] 0.0 - 25.0
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
Access
level
Read /
write
Read /
write
Read /
write
Read /
write
Read /
write
Write
only
Write
only