Siemens SITRANS FST030 - Page 212

Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units register)
Value range /
Setting options
Access
level
10040 Float / 4 Upper range
value viscosity
Upper process viscosi‐
ty value that is mapped
to the upper nominal
range boundary selec‐
ted by Frequency value
high (8935). Applicable
if Process value (8904)
= 21 or 29.
1.0
[m²/s]
(7524)
- Read /
write
10042 Float / 4 Lower range
value viscosity
Lower process viscosi‐
ty value that is mapped
to the lower nominal
range boundary selec‐
ted by Frequency value
low (8937). Applicable
if Process value (8904)
= 21 or 29.
0.0
[m²/s]
(7524)
- Read /
write
10068 Float / 4 Upper range
value ROC
Upper rate of change
value that is mapped to
the upper nominal
range boundary selec‐
ted by Frequency value
high (8935). Applicable
if Process value (8904)
= 36.
1.0
[m/s²]
(8564)
- Read /
write
10070 Float / 4 Lower range
value ROC
Lower rate of change
value that is mapped to
the lower nominal
range boundary selec‐
ted by Frequency value
low (8937). Applicable
if Process value (8904)
= 36.
0.0
[m/s²]
(8564)
- Read /
write
8908 Float / 4 Damping value Time constant of damp‐
ing filter for frequency
output signal.
0.0
[s]
0.0 - 100.0 Read /
write
8939 Unsigned / 2 Fail-safe behav‐
ior
Frequency output reac‐
tion in case of a fault.
2
● 0: Frequency value
low
● 1: Frequency value
high
● 2: Last valid value
● 3: Disabled
● 4: Custom value
Read /
write
8940 Float / 4 Fail-safe value Output value in case of
a fault and when Fail-
safe behavior (8939) is
configured to 4.
0.0
[Hz]
0.0 - 12500.0 Read /
write
7149 Float / 4 Forced value Forced value when
forcing is active.
1.0
[Hz]
0.0 - 12500.0 Read /
write
Modbus communication
A.9 Modbus holding registers tables
SITRANS FST030 (Modbus)
212 Operating Instructions, 08/2018, A5E37367739-AD