Siemens SITRANS F Series Operating Instructions Manual page 170

Modbus communication
A.9 Modbus holding registers tables
Path 1 settings
Table A-21 Path 1 settings
Modbus Data type /
register Size in bytes
1450 Float / 4
1458 Unsigned / 2
1465 Float / 4
1459 Float / 4
Path 2 settings
Table A-22 Path 2 settings
Modbus Data type /
register Size in bytes
1500 Float / 4
1508 Unsigned / 2
170
Parameter Description
Sensor frequen‐ Desired sensor frequency for
cy path 1.
Path geometry The number of crossings the sig‐
nal makes through the pipe (Re‐
flect or direct geometry for path
1).
E.g.:
Z path = 1
V path = 2
W path = 4
Clamp-on spac‐ Spacing (LTN) between clamp-
ing on sensors for path 1.
Path weight Fixed weighting factor associ‐
ated with path 1.
For clamp-on systems the instal‐
led 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 frequen‐ Desired sensor frequency for
cy path 2.
Path geometry The number of crossings the sig‐
nal makes through the pipe (Re‐
flect or direct geometry for path
2).
E.g.:
Z path = 1
V path = 2
W path = 4
Default value Value range /
[units] Setting options
(units register)
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 register)
1100000 80000.0 -
[Hz] 4000000.0
1 1 - 10
SITRANS FST030 (Modbus)
Operating Instructions, 08/2018, A5E37367739-AD
Access
level
Read /
write
Read /
write
Read /
write
Read /
write
(Expert)
Access
level
Read /
write
Read /
write