Siemens Sitrans F Series - Page 191

API gravity settings
Table A-41 API 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
11520 Float / 4 Upper alarm
limit
Exceeding this limit
causes an alarm.
Max. floating
point value
[°API]
- Read /
write
11522 Float / 4 Upper warning
limit
Exceeding this limit
causes a warning.
Max. floating
point value
[°API]
- Read /
write
11524 Float / 4 Lower warning
limit
Falling below this limit
causes a warning.
Min. floating
point value
[°API]
- Read /
write
11526 Float / 4 Lower alarm
limit
Falling below this limit
causes an alarm.
Min. floating
point value
[°API]
- Read /
write
11528 Float / 4 Hysteresis Hysteresis that affects
the alarm and warning
limits.
0.0
[°API]
- Read /
write
Standard API gravity settings
Table A-42 Standard API 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
11530 Float / 4 Upper alarm
limit
Exceeding this limit
causes an alarm.
Max. floating
point value
[°API]
- Read /
write
11532 Float / 4 Upper warning
limit
Exceeding this limit
causes a warning.
Max. floating
point value
[°API]
- Read /
write
11534 Float / 4 Lower warning
limit
Falling below this limit
causes a warning.
Min. floating
point value
[°API]
- Read /
write
11536 Float / 4 Lower alarm
limit
Falling below this limit
causes an alarm.
Min. floating
point value
[°API]
- Read /
write
11538 Float / 4 Hysteresis Hysteresis that affects
the alarm and warning
limits.
0.0
[°API]
- Read /
write
Modbus communication
A.9 Modbus holding registers tables
SITRANS FST030 (Modbus)
Operating Instructions, 08/2018, A5E37367739-AD 191