
Modbus communication
A.9 Modbus holding registers tables
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
189
Modbus
register
Data type /
Size in bytes
Parameter
Description
Default value
[units]
(units regis-
ter)
Value range /
Setting options
Access
level
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 regis-
ter)
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
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 regis-
ter)
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
Содержание SITRANS F Series
Страница 2: ......
Страница 360: ...Index SITRANS F Ultrasonic flowmeters FST030 Modbus 358 Operating Instructions 08 2017 A5E37367739 AC ...
Страница 361: ......