Siemens SITRANS F series Operating Instructions Manual page 166

Modbus communication
A.9 Modbus holding registers tables
Modbus Data type /
register Size in bytes
1411 Float / 4
1441 Unsigned / 2
Sensor spacing
Table A- 20 Sensor spacing settings
Modbus Data type /
register Size in bytes
1426 Unsigned / 2
1420 Unsigned / 2
164
Parameter Description
Cable length Length of the used
sensor cables (One
way). Used for calcu-
lating and compensat-
ing the time delay in
the cables.
Perform fre- Command to perform a
quency search frequency sweep on a
path.
Parameter Description
Recommended Recommended spac-
space method ing method between
clamp-on sensors for
path X. Calculated on
request.
Clamp-on rec- The path the current
ommended recommended spacing
spacing path X values were calculated
for. 0 means not calcu-
lated since power up.
Default value Value range /
[units] Setting options
(units regis-
ter)
0.0 0.0 - 20.0
[m]
(8556)
0
0: Frequency sweep
•
done / not running
1: Perform frequency
•
sweep on path 1
2: Perform frequency
•
sweep on path 2
3: Perform frequency
•
sweep on path 3
4: Perform frequency
•
sweep on path 4
5: Perform frequency
•
sweep on path 5
Default value Value range /
[units] Setting options
(units regis-
ter)
-
0: None (default)
•
1: Track 1012TN
•
2: Track 1012TNH
•
3: Track 992
•
4: Spacer bar
•
1012BN
5: Manual
•
6: Spacing Error
•
0 0 - 255
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
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