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Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
179
Modbus
register
Data type /
Size in bytes
Parameter
Description
Default value
[units]
(units regis-
ter)
Value range /
Setting options
Access
level
1136
Float / 4
Calibration
value 17
Calibration correction
factor that is associat-
ed to Calibration point
17.
1.0
0.5 - 2.0
Read /
write
(Expert)
1138
Float / 4
Calibration
point 18
Calibration point 18 for
undirectional flow or
calibration point 18 for
bidirectional positive
flow. If 0.0 the calibra-
tion point is not used.
0.0
[m
3
/s]
(7500)
0.0 - 100000.0
Read /
write
(Expert)
1140
Float / 4
Calibration
value 18
Calibration correction
factor that is associat-
ed to Calibration point
18.
1.0
0.5 - 2.0
Read /
write
(Expert)
1142
Float / 4
Calibration
point 19
Calibration point 19 for
undirectional flow or
calibration point 19 for
bidirectional positive
flow. If 0.0 the calibra-
tion point is not used.
0.0
[m
3
/s]
(7500)
0.0 - 100000.0
Read /
write
(Expert)
1144
Float / 4
Calibration
value 19
Calibration correction
factor that is associat-
ed to Calibration point
19.
1.0
0.5 - 2.0
Read /
write
(Expert)
1146
Float / 4
Calibration
point 20
Calibration point 20 for
undirectional flow or
calibration point 20 for
bidirectional positive
flow. If 0.0 the calibra-
tion point is not used.
0.0
[m
3
/s]
(7500)
0.0 - 100000.0
Read /
write
(Expert)
1148
Float / 4
Calibration
value 20
Calibration correction
factor that is associat-
ed to Calibration point
20.
1.0
0.5 - 2.0
Read /
write
(Expert)