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Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
174
Operating Instructions, 08/2017, A5E37367739-AC
Modbus
register
Data type /
Size in bytes
Parameter
Description
Default value
[units]
(units regis-
ter)
Value range /
Setting options
Access
level
1064
Unsigned / 2 Calibration
table command
The register "Multipoint
calibration status" is
updated after each
command has been
handled.
Command 21 will al-
ways be accepted.
Remaining commands
will only be accepted if
register "Calibration
table protection" is 0.
-
•
1..20: Transfer cali-
bration data specified
in registers "Calibra-
tion point" and "Cali-
bration value" to
according entry of the
multipoint calibration
table.
•
21: Perform sanity
check of the calibra-
tion table (calibration
point values must be
in nominal ascending
order).
•
22: Reset calibration
table to default val-
ues (all "Calibration
point X" values set to
0.0 and all "Calibra-
tion value X" values
set to 1.0).
•
23: Set register
"Asymmetric calibra-
tion table" to 0 to in-
dicate that the
calibration table is
used as a uni-
directional table.
•
24: Set register
"Asymmetric calibra-
tion table" to 1 to in-
dicate that the
calibration table is
used as a bi-
directional table.
Read /
write
Содержание SITRANS F Series
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