Siemens SITRANS FST030 - Page 278

Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[unit]
(unit register)
Value range /
Setting options
Access
level
8081 Unsigned / 2 Trend log time
window
Scaling of the time axis.
Effective when Trend
scale mode (8080) is
set to 1.
1
● 0: 1 min
● 1: 5 min
● 2: 15 min
● 3: 30 min
● 4: 1 h
● 5: 2 h
● 6: 3 h
Read /
write
8082 Float / 4 Trend scale low‐
er limit
Scaling of the y-axis.
Lower limit. Effective
when Trend scale
mode (8080) is set to 1.
0.0 - Read /
write
8084 Float / 4 Trend scale up‐
per limit
Scaling of the y-axis.
Upper limit. Effective
when Trend scale
mode (8080) is set to 1.
0.0 - Read /
write
Modbus communication
A.9 Modbus holding registers tables
SITRANS FST030 (Modbus)
278 Operating Instructions, 08/2018, A5E37367739-AD