Siemens SITRANS F Series, Руководство по эксплуатации, Страница: 155 / 362

Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
153
Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units regis-
ter)
Value range /
Setting options
Access
level
8468 Float / 4 Custom volume
flow units factor
Conversion
factor for
user specif-
ic volume
flow values
related to
m
3
/s.
1.0 - Read /
write
7518 String / 8 Custom stand-
ard volume flow
units string
User spe-
cific string
for stand-
ard volume
flow values.
-------- - Read /
write
7516 Float / 4 Custom stand-
ard volume flow
units factor
Conversion
factor for
user specif-
ic standard
volume
flow values
related to
Sm
3
/s.
1.0 - Read /
write
8458 String / 8 Custom mass
flow units string
User spe-
cific string
for mass
flow values.
-------- - Read /
write
8456 Float / 4 Custom mass
flow units factor
Conversion
factor for
user specif-
ic mass
flow values
related to
kg/s.
1.0 - Read /
write
8464 String / 8 Custom density
units string
User spe-
cific string
for density
values.
-------- - Read /
write
8462 Float / 4 Custom density
units factor
Conversion
factor for
user specif-
ic density
values
related to
kg/m
3
.
1.0 - Read /
write
8494 String / 8 Custom velocity
units string
User spe-
cific string
for velocity
values.
-------- - Read /
write