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Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
134
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
3046
Float / 4
Kinematic vis-
cosity
Liquid viscosity
-
[m
2
/s]
(7524)
-
Read
only
3042
Float / 4
Medium tem-
perature
Measured medium
temperature
-
[°C]
(7700)
-
Read
only
Table A- 9
Additional process values for hydrocarbon applications
Modbus
register
Data type /
Size in bytes
Parameter
Description
Default value
[units]
(units regis-
ter)
Value range /
Setting options
Access
level
7533
Float / 4
Standard vol-
ume flow
Measured standard
volume flow rate
-
[Sm³/h]
(7964)
-
Read
only
3070
Float / 4
Standardizing
factor
Measured standardiz-
ing factor
-
-
Read
only
3054
Float / 4
Standard ki-
inematic viscos-
ity
Measured standard
kinematic viscosity
-
[m
2
/s]
(7524)
-
Read
only
3056
Float / 4
Standard densi-
ty
Measured standard
density
-
[kg/m
3
]
(7600)
-
Read
only
3058
Float / 4
Liquident
Measured liquident
-
[m/s]
-
Read
only
3060
Float / 4
API gravity
Measured API gravity -
[°API]
-
Read
only
3062
Float / 4
Base API gravi-
ty
Measured base API
gravity
-
[°API]
-
Read
only
3066
Float / 4
Base specific
gravity
Measured base specif-
ic gravity
-
[SGU]
-
Read
only
3068
Float / 4
ROC
Rate of change
-
[m/s
2
]
(8564)
-
Read
only
3150
Unsigned / 2 Liquid identifier Liquid identifier
-
-
Read
only