Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units register)
Value range /
Setting options
Access
level
1227 Unsigned / 2 Liner material Liner material.
● 0: Not applicable
● 1: Custom
● 2. Cement
● 3: Coal tar
● 4: Enamel
● 5: Glass
● 6 Plastic
● 7: Hi_dens_Poly
● 8: PTFE
● 9: Rubber
Read /
write
1210 Float / 4 Liner sound ve‐
locity
Liner material sound
velocity.
2000.0
[m/s]
(7648)
200.0 - 4000.0 Read /
write
1214 Float / 4 Inner pipe
roughness
Roughness of inner
pipe/liner material.
0.0001
[m]
(8556)
0.0 - 0.01 Read /
write
1216 Float / 4 Inner pipe diam‐
eter
Calculated inner diam‐
eter of pipe.
-
[m]
(8556)
- Read
only
1715 Float / 4 Calibration ref‐
erence temper‐
ature
Setup parameter for
specifying the process
medium temperature at
which the flow calibra‐
tion of the meter is per‐
formed. The value is
used for compensation
of pipe expansion due
to temperature.
20.0
[°C ]
(7700)
-50.0 - +250.0 Read /
write
1717 Float / 4 Pipe thermal ex‐
pansion
Setup parameter for
specifying the thermal
expansion coefficient
of the pipe material.
The value is used for
compensation of pipe
expansion due to tem‐
perature.
0
[1/K]
- Read /
write
Modbus communication
A.9 Modbus holding registers tables
SITRANS FST030 (Modbus)
162 Operating Instructions, 08/2018, A5E37367739-AD