Siemens SITRANS F Series, Руководство по эксплуатации, Страница: 186 / 362

Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
184
Operating Instructions, 08/2017, A5E37367739-AC
LiquIdent settings
Table A- 34 Liquident settings (only hydrocarbon applications)
Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units regis-
ter)
Value range /
Setting options
Access
level
1727 Float / 4 LiquIdent tem-
perature slope
factor
Specifies a tempera-
ture slope factor used
in connection with the
standard condition
temperature for calcu-
lating liquident.
-4.10
[m/K*s]
-8.0 - 0.0 Read /
write
1729 Float / 4 LiquIdent pres-
sure slope
factor
Specifies a pressure
slope factor used in
connection with the
standard condition
temperature for calcu-
lating liquident.
0.00000435 0.0 - 0.00003 Read /
write
7040 Float / 4 Upper alarm
limit
Exceeding this limit
causes an alarm.
Max. floating
point value
[m/s]
(8014)
- Read /
write
7042 Float / 4 Upper warning
limit
Exceeding this limit
causes a warning.
Max. floating
point value
[m/s]
(8014)
- Read /
write
7044 Float / 4 Lower warning
limit
Falling below this limit
causes a warning.
Min. floating
point value
[m/s]
(8014)
- Read /
write
7046 Float / 4 Lower alarm
limit
Falling below this limit
causes an alarm.
Min, floating
point value
[m/s]
(8014)
- Read /
write
7048 Float / 4 Hysteresis Hysteresis that affects
the alarm and warning
limits.
0.0
[m/s]
(8014)
- Read /
write