Siemens SITRANS F Series Operating Instructions Manual page 253

Modbus Data type /
register Size in bytes
10240 Float / 4
10242 Float / 4
10268 Float / 4
10270 Float / 4
9408 Float / 4
9592 Unsigned / 2
9481 Unsigned / 2
SITRANS FST030 (Modbus)
Operating Instructions, 08/2018, A5E37367739-AD
Parameter Description
Upper range Upper process viscosi‐
value viscosity ty value that is mapped
to the upper nominal
range boundary selec‐
ted by Frequency value
high (9435). Applicable
if Process value (9404)
= 21 or 29.
Lower range Lower process viscosi‐
value viscosity ty value that is mapped
to the lower nominal
range boundary selec‐
ted by Frequency value
low (9437). Applicable
if Process value (9404)
= 21 or 29.
Upper range Upper rate of change
value ROC value that is mapped to
the upper nominal
range boundary selec‐
ted by Frequency value
high (9435). Applicable
if Process value (9404)
= 36.
Lower range Lower rate of change
value ROC value that is mapped to
the lower nominal
range boundary selec‐
ted by Frequency value
low (9437). Applicable
if Process value (9404)
= 36.
Damping filter Time constant of damp‐
ing filter for frequency
output signal.
Fail-safe activa‐ Fail-safe activation con‐
tion condition dition.
Fail-safe min. Minimum time the out‐
time put stays in fail-safe be‐
havior.
A.9 Modbus holding registers tables
Default value Value range /
[units] Setting options
(units register)
1.0 -
[m²/s]
(7524)
0.0 -
[m²/s]
(7524)
1.0 -
[m/s²]
(8564)
0.0 -
[m/s²]
(8564)
0.0 0.0 - 100.0
[s]
1
● 0: Bad status of
selected process
value
● 1: Active
Maintenance alarm
or Failure (NAMUR)
0 0 - 100
[s]
Modbus communication
Access
level
Read /
write
Read /
write
Read /
write
Read /
write
Read /
write
Read /
write
Read /
write
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