Siemens SITRANS FST030 - Page 192

Specific gravity settings
Table A-43 Specific gravity settings (only hydrocarbon applications)
Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units register)
Value range /
Setting options
Access
level
11540 Float / 4 Upper alarm
limit
Exceeding this limit
causes an alarm.
Max. floating
point value
[SGU]
- Read /
write
11542 Float / 4 Upper warning
limit
Exceeding this limit
causes a warning.
Max. floating
point value
[SGU]
- Read /
write
11544 Float / 4 Lower warning
limit
Falling below this limit
causes a warning.
Min. floating
point value
[SGU]
- Read /
write
11546 Float / 4 Lower alarm
limit
Falling below this limit
causes an alarm.
Min. floating
point value
[SGU]
- Read /
write
11548 Float / 4 Hysteresis Hysteresis that affects
the alarm and warning
limits.
0.0
[SGU]
- Read /
write
Standard specific gravity settings
Table A-44 Standard specific gravity settings (only hydrocarbon applications)
Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units register)
Value range /
Setting options
Access
level
11550 Float / 4 Upper alarm
limit
Exceeding this limit
causes an alarm.
Max. floating
point value
[SGU]
- Read /
write
11552 Float / 4 Upper warning
limit
Exceeding this limit
causes a warning.
Max. floating
point value
[SGU]
- Read /
write
11554 Float / 4 Lower warning
limit
Falling below this limit
causes a warning.
Min. floating
point value
[SGU]
- Read /
write
11556 Float / 4 Lower alarm
limit
Falling below this limit
causes an alarm.
Min. floating
point value
[SGU]
- Read /
write
11558 Float / 4 Hysteresis Hysteresis that affects
the alarm and warning
limits.
0.0
[SGU]
- Read /
write
Modbus communication
A.9 Modbus holding registers tables
SITRANS FST030 (Modbus)
192 Operating Instructions, 08/2018, A5E37367739-AD