Siemens SITRANS F series Operating Instructions Manual page 170

Modbus communication
A.9 Modbus holding registers tables
Path 4 settings
Table A- 24 Path 4 settings
Modbus Data type /
register Size in bytes
1600 Float / 4
1608 Unsigned / 2
1615 Float / 4
1609 Float / 4
Path 5 settings
Table A- 25 Path 5 settings
Modbus Data type /
register Size in bytes
1650 Float / 4
1658 Unsigned / 2
168
Parameter Description
Sensor fre- Desired sensor frequency for
quency path 4.
Path geometry The number of crossings the
signal makes through the pipe
(Reflect or direct geometry for
path 4).
E.g.:
Z path = 1
V path = 2
W path = 4
Spacing offset Spacing offset (LTN) between
clamp-on sensors for path 4.
Path weight Fixed weighting factor associ-
ated with path 4.
For clamp-on systems the in-
stalled paths weightings should
be identical but not zero.
For inline systems the sum of
the installed paths weightings
should be 1.0.
Parameter Description
Sensor fre- Desired sensor frequency for
quency path 5.
Path geometry The number of crossings the
signal makes through the pipe
(Reflect or direct geometry for
path 5).
E.g.:
Z path = 1
V path = 2
W path = 4
Default value Value range /
[units] Setting options
(units regis-
ter)
1100000 80000.0 -
[Hz] 4000000.0
1 1 - 10
0.0 -100.0 - 100.0
[m]
(8556)
1.0 0.01 - 2.0
Default value Value range /
[units] Setting options
(units regis-
ter)
1100000 80000.0 -
[Hz] 4000000.0
1 1 - 10
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
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