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Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
201
Modbus
register
Data type /
Size in bytes
Parameter
Description
Default value
[units]
(units regis-
ter)
Value range /
Setting options
Access
level
8812
Float / 4
Lower range
value mass flow
Lower mass flow value
that is mapped to the
lower nominal range
boundary selected by
Current mode (8806).
Applicable if Process
value (8802) = 0.
0.0
[kg/s]
(7400)
-
Read /
write
8870
Float / 4
Upper range
value density
Upper process density
value that is mapped to
the upper nominal
range boundary se-
lected by Current mode
(8806). Applicable if
Process value (8802) =
2.
Max. density
[kg/m
3
]
(7600)
-
Read /
write
8872
Float / 4
Lower range
value density
Lower process density
value that is mapped to
the lower nominal
range boundary se-
lected by Current mode
(8806). Applicable if
Process value (8802) =
2.
0.08
[kg/m
3
]
(7600)
-
Read /
write
8874
Float / 4
Upper range
value tempera-
ture
Upper medium tem-
perature value that is
mapped to the upper
nominal range bounda-
ry selected by Current
mode (8806). Applica-
ble if Process value
(8802) = 3.
Max. medium
temperature
[°C]
(7700)
-
Read /
write
8876
Float / 4
Lower range
value tempera-
ture
Lower medium tem-
perature value that is
mapped to the lower
nominal range bounda-
ry selected by Current
mode (8806). Applica-
ble if Process value
(8802) = 3.
Min. medium
temperature
[°C]
(7700)
-
Read /
write
8878
Float / 4
Upper range
value standard
volume flow
Upper standard volume
flow value that is
mapped to the upper
nominal range bounda-
ry selected by Current
mode (8806). Applica-
ble if Process value
(8802) = 27.
0.4 % •
standard
volume flow
[Sm
3
/h]
(7964)
-
Read /
write