Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units register)
Value range /
Setting options
Access
level
9239 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
9240 Float / 4 Fail-safe value Output value in case of
a fault and when Fail-
safe behavior (9239) is
configured to 4.
0.0
[Hz]
0.0 - 12500.0 Read /
write
7156 Float / 4 Forced value Forced value when
forcing is active.
1.0
[Hz]
0.0 - 12500.0 Read /
write
Channel 3 pulse output settings
Table A-57 Channel 3 pulse output settings
Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units register)
Value range /
Setting options
Access
level
9280 Unsigned / 2 Redundancy
mode
Redundancy mode. 0
● 0: Off. Channel 3 runs
independently.
● 1: 90°. Channel 3
follows pulses on
channel 2 with a 90°
shift.
● 2: 180°. Channel 3
follows pulses on
channel 2 with a 180°
shift.
Read /
write
9260 Unsigned / 2 Process value Select process value
for the pulse output.
0
● 0: Mass flow
● 1: Volume flow
● 27: Standard volume
flow rate (only
hydrocarbon and gas
applications)
Read /
write
9262 Unsigned / 2 Flow direction Flow direction filter. 0
● 0: Positive direction
● 1: Negative direction
● 2: Positive and
negative directions
Read /
write
Modbus communication
A.9 Modbus holding registers tables
SITRANS FST030 (Modbus)
Operating Instructions, 08/2018, A5E37367739-AD 231
To Next Page
Loading...
