Siemens SITRANS F Series Operating Instructions Manual page 172

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
User calibration
Table A-25 User calibration
Modbus Data type /
register Size in bytes
1000 Float / 4
1006 Float / 4
172
Parameter Description
Sensor frequen‐ Desired sensor frequency for
cy path 4.
Path geometry The number of crossings the sig‐
nal makes through the pipe (Re‐
flect or direct geometry for path
4).
E.g.:
Z path = 1
V path = 2
W path = 4
Clamp-on spac‐ Spacing (LTN) between clamp-
ing on sensors for path 4.
Path weight Fixed weighting factor associ‐
ated with path 4.
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
Slope correc‐ Define positive and
tion factor negative flow direction.
Default positive flow di‐
rection is indicated by
the arrow on the sen‐
sor.
Path 1 offset User calibrated zero off‐
set for path 1.
Calibrated delta time =
delta time + Path 1 fac‐
tory offset + Path 1 off‐
set.
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)
1.0 0.5 - 2.0
0.0 -1.25E-6 - +1.25E-6
[s]
Operating Instructions, 08/2018, A5E37367739-AD
Access
level
Read /
write
Read /
write
Read /
write
Read /
write
(Expert)
Access
level
Read /
write
Read /
write
SITRANS FST030 (Modbus)