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Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
157
Modbus
register
Data type /
Size in bytes
Parameter
Description
Default value
[units]
(units regis-
ter)
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
velocity
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 di-
ameter
Calculated inner diam-
eter of pipe.
-
[m]
(8556)
-
Read
only
1715
Float / 4
Calibration
reference tem-
perature
Setup parameter for
specifying the process
medium temperature at
which the flow calibra-
tion of the meter is
performed. The value
is used for compensa-
tion of pipe expansion
due to temperature.
20.0
[°C ]
(7700)
-50.0 - +250.0
Read /
write
1717
Float / 4
Pipe thermal
expansion
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