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Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
218
Operating Instructions, 08/2017, A5E37367739-AC
Modbus
register
Data type /
Size in bytes
Parameter
Description
Default value
[units]
(units regis-
ter)
Value range /
Setting options
Access
level
9102
Unsigned / 2 Process value
Select process value
for the current output.
0
•
0: Mass flow
•
1: Volume flow
•
2: Density
•
3: Medium tempera-
ture
•
18: Sound velocity
•
19: Flow velocity
•
20: Pressure
•
21: Viscosity
•
22: RTD temperature
1
•
23: RTD temperature
2
•
24: Medium concen-
tration
•
25: Measured current
(Channel 5)
•
26: Measured current
(Channel 6)
•
27: Standard volume
flow rate (only hydro-
carbon and gas ap-
plications)
•
28: Standardizing
factor (only hydro-
carbon and gas ap-
plications)
•
29: Base viscosity
(only hydrocarbon
applications)
•
30: Base density
(only hydrocarbon
applications)
•
31: LiquIdent (only
hydrocarbon applica-
tions)
•
32: API gravity (only
hydrocarbon applica-
tions)
•
33: Base API gravity
(only hydrocarbon
applications)
•
34: Specific gravity
(only hydrocarbon
applications)
•
35: Base specific
gravity (only hydro-
carbon applications)
•
36: Rate of change
Read /
write