Siemens SITRANS FST030 - Page 209

Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units register)
Value range /
Setting options
Access
level
8915 Float / 4 Upper range
value volume
flow
Upper volume flow val‐
ue that is mapped to
the upper nominal
range boundary selec‐
ted by Frequency value
high (8935). Applicable
if Process value (8904)
= 1.
0.4 % • max.
volume flow
[m
3
/s]
(7500)
- Read /
write
8917 Float / 4 Lower range
value volume
flow
Lower volume flow val‐
ue that is mapped to
the lower nominal
range boundary selec‐
ted by Frequency value
low (8937). Applicable
if Process value (8904)
= 1.
0.0
[m
3
/s]
(7500)
- Read /
write
8911 Float / 4 Upper range
value mass flow
Upper mass flow value
that is mapped to the
upper nominal range
boundary selected by
Frequency value high
(8935). Applicable if
Process value (8904) =
0.
0.2 • max.
mass flow-
[kg/s]
(7400)
- Read /
write
8913 Float / 4 Lower range
value mass flow
Lower mass flow value
that is mapped to the
lower nominal range
boundary selected by
Frequency value low
(8937). Applicable if
Process value (8904) =
0.
0.0
[kg/s]
(7400)
- Read /
write
8919 Float / 4 Upper range
value density
Upper process density
value that is mapped to
the upper nominal
range boundary selec‐
ted by Frequency value
high (8935). Applicable
if Process value (8904)
= 2.
1600
[kg/m
3
]
(7600)
- Read /
write
8921 Float / 4 Lower range
value density
Lower process density
value that is mapped to
the lower nominal
range boundary selec‐
ted by Frequency value
low (8937). Applicable
if Process value (8904)
= 2.
600
[kg/m
3
]
(7600)
- Read /
write
Modbus communication
A.9 Modbus holding registers tables
SITRANS FST030 (Modbus)
Operating Instructions, 08/2018, A5E37367739-AD 209