Siemens SITRANS F Coriolis FCT030 Function Manual page 112

MODBUS commands
4.10 Modbus holding registers tables
Modbus Data type /
register Size in bytes
9386 Float / 4
9388 Float / 4
Channel 4 frequency output settings
Table 4-44 Channel 4 frequency output settings
Modbus Data type /
register Size in bytes
9404 Unsigned / 2
9410 Unsigned / 2
9435 Float / 4
9437 Float / 4
112
Parameter Description
Offset adjust‐ Command to trim the
ment lower range value of
the loop current.
Simulate a loop current
of 4.0 mA, measure the
current with an ampere
meter and write the
measured value to this
register.
Gain adjustment Command to trim the
upper range value of
the loop current.
Simulate a loop current
of 20.0 mA, measure
the current with an am‐
pere meter and write
the measured value to
this register.
Parameter Description
Process value Select process value
for the current output.
Flow direction Flow direction filter ap‐
plicable for Process val‐
ues (9404) set to 0, 1,
19, or 27.
Frequency val‐ Upper frequency value.
ue high Upper nominal output
range boundary.
Frequency val‐ Lower frequency value.
ue low Lower nominal output
range boundary.
Default value Value range /
[units] Setting options
(units register)
- 0 - 25
- 0 - 25
Default value Value range /
[units] Setting options
(units register)
0
● 0: Mass flow
● 1: Volume flow
● 2: Density
● 3: Medium
temperature
0
● 0: Positive direction
● 1: Negative direction
● 2: Positive and
negative directions
● 3: Positive and
negative directions
(symmetric mode)
10000.0 0.0 - 12500.0
[Hz]
0.0 Hz 0.0 - 12500.0
FCT030 Modbus (From firmware 4.0)
Function Manual, 06/2018, A5E39931813-AB
Access
level
Write on‐
ly
Write on‐
ly
Access
level
Read /
write
Read /
write
Read /
write
Read /
write