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Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
255
Modbus
register
Data type /
Size in bytes
Parameter
Description
Default value
[units]
(units regis-
ter)
Value range /
Setting options
Access
level
10232
Float / 4
Upper range
value dimen-
sionless
Upper dimensionless
value that is mapped to
the upper nominal
range boundary se-
lected by Frequency
value high (9435).
Applicable if Process
value (9404) = 28, 32,
33, 34, or 36.
1.0
-
Read /
write
10234
Float / 4
Lower range
value dimen-
sionless
Lower dimensionless
value that is mapped to
the lower nominal
range boundary se-
lected by Frequency
value low (9437). Ap-
plicable if Process
value (9404) = 28, 32,
33, 34, or 36.
0.0
-
Read /
write
10236
Float / 4
Upper range
value current
Upper current value
that is mapped to the
upper nominal range
boundary selected by
Frequency value high
(9435). Applicable if
Process value (9404) =
25 or 26.
20.0
[mA]
-
Read /
write
10238
Float / 4
Lower range
value current
Lower current value
that is mapped to the
lower nominal range
boundary selected by
Frequency value low
(9437). Applicable if
Process value (9404) =
25 or 26.
4.0
[mA]
-
Read /
write
10240
Float / 4
Upper range
value viscosity
Upper process viscosi-
ty value that is mapped
to the upper nominal
range boundary se-
lected by Frequency
value high (9435).
Applicable if Process
value (9404) = 21 or
29.
1.0
[m²/s]
(7524)
-
Read /
write