Siemens SITRANS F series Operating Instructions Manual page 255

Modbus Data type /
register Size in bytes
9419 Float / 4
9421 Float / 4
9423 Float / 4
9425 Float / 4
9427 Float / 4
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
Parameter Description
Upper range Upper process density
value density value that is mapped to
the upper nominal
range boundary se-
lected by Frequency
value high (9435).
Applicable if Process
value (9404) = 2.
Lower range Lower process density
value density value that is mapped to
the lower nominal
range boundary se-
lected by Frequency
value low (9437). Ap-
plicable if Process
value (9404) = 2.
Upper range Upper medium tem-
value tempera- perature value that is
ture mapped to the upper
nominal range bounda-
ry selected by Fre-
quency value high
(9435). Applicable if
Process value (9404) =
3.
Lower range Lower medium tem-
value tempera- perature value that is
ture mapped to the lower
nominal range bounda-
ry selected by Fre-
quency value low
(9437). Applicable if
Process value (9404) =
3.
Upper range Upper standard volume
value standard flow value that is
volume flow mapped to the upper
nominal range bounda-
ry selected by Fre-
quency value high
(9435). Applicable if
Process value (9404) =
27.
A.9 Modbus holding registers tables
Default value Value range /
[units] Setting options
(units regis-
ter)
Max. density -
[kg/m ]
3
(7600)
0.08 -
[kg/m ]
3
(7600)
Max. medium -
temperature
[°C]
(7700)
Min. medium -
temperature
[°C]
(7700)
0.4 % • max. -
standard
volume flow
[Sm /h]
3
(7964)
Modbus communication
Access
level
Read /
write
Read /
write
Read /
write
Read /
write
Read /
write
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