Siemens SITRANS FST030 - Page 190

Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units register)
Value range /
Setting options
Access
level
7668 Float / 4 Lower alarm
limit
Falling below this limit
causes an alarm.
Min. floating
point value
[Pa]
(8015)
- Read /
write
7670 Float / 4 Hysteresis Hysteresis that affects
the alarm and warning
limits.
0.0
[Pa]
(8015)
- Read /
write
Medium temperature settings
Table A-40 Medium temperature settings
Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units register)
Value range /
Setting options
Access
level
7701 Float / 4 Upper alarm
limit
Exceeding this limit
causes an alarm.
max. medium
temperature
[°C]
(7700)
min. medium temperature -
max. medium temperature
Read /
write
7703 Float / 4 Upper warning
limit
Exceeding this limit
causes a warning.
max. medium
temperature
[°C]
(7700)
min. medium temperature -
max. medium temperature
Read /
write
7705 Float / 4 Lower warning
limit
Falling below this
limit causes a warn‐
ing.
min. medium
temperature
[°C]
(7700)
min. medium temperature -
max. medium temperature
Read /
write
7707 Float / 4 Lower alarm
limit
Falling below this
limit causes an
alarm.
min. medium
temperature
[°C]
(7700)
min. medium temperature -
max. medium temperature
Read /
write
7712 Float / 4 Hysteresis Hysteresis that af‐
fects the alarm and
warning limits.
0.0
[K]
0.0 - 200.0 Read /
write
Modbus communication
A.9 Modbus holding registers tables
SITRANS FST030 (Modbus)
190 Operating Instructions, 08/2018, A5E37367739-AD