Siemens SITRANS FST030 - Page 176

Multipoint calibration
Table A-27 Multipoint calibration
Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units register)
Value range /
Setting options
Access
level
1050 Unsigned / 1 Calibration func‐
tion
Specifies the input func‐
tion for the multipoint
calibration table.
0
● 0: Volume flow rate
[m3/s]
● 1: Reynolds number
● 2: Sound velocity
[m/s]
Read /
write
(Expert)
1051 Unsigned / 1 Protect calibra‐
tion table
Specifies protection of
the multipoint calibra‐
tion table.
0
● 0 :No protection of the
calibration table. End
users can use
Calibration table
command (1064) to
change the multipoint
calibration table.
● 1: Calibration table is
protected. Calibration
table command
(1064) will not grant
access to modify the
multipoint calibration
table.
Read /
write
(Expert)
1052 Unsigned / 1 Enable multi‐
point calibration
Enable or disable the
Multipoint calibration.
0
● 0: Disabled
● 1: Enabled
Read /
write
1053 Unsigned / 1 Asymmetric cal‐
ibration table
Usage of the calibra‐
tion table.
0
● 0: Unidirectional. All
20 calibration points
are used for positive
flow calibration and
are then mirrored for
negative flow.
● 1: Bidirectional. The
first 10 calibration
points are used for
positive flow
calibration and the 10
last calibration points
are used for negative
flow calibration.
Read /
write
(Expert)
1066 Float / 4 Calibration point Calibration point that is
to be transferred to the
multipoint calibration ta‐
ble.
0.0
[m
3
/s]
(7500)
0.0 - 100000.0 Read /
write
Modbus communication
A.9 Modbus holding registers tables
SITRANS FST030 (Modbus)
176 Operating Instructions, 08/2018, A5E37367739-AD