Siemens SITRANS F series Operating Instructions Manual page 198

Modbus communication
A.9 Modbus holding registers tables
Modbus Data type /
register Size in bytes
8508 Float / 4
8510 Float / 4
8512 Float / 4
8514 Float / 4
8533 Float / 4
8535 Float / 4
8537 Float / 4
8539 Float / 4
8541 Float / 4
196
Parameter Description
Mass upper Exceeding this limit
warning limit causes a warning
when mass flow is
selected as input.
Mass lower Falling below this limit
warning limit causes a warning
when mass flow is
selected as input.
Mass lower Falling below this limit
alarm limit causes an alarm when
mass flow is selected
as input.
Mass alarm Hysteresis that affects
hysteresis the alarm and warning
limits when mass flow
is selected as input.
Standard vol- Exceeding this limit
ume upper causes an alarm when
alarm limit volume flow is selected
as input.
Standard vol- Exceeding this limit
ume upper causes a warning
warning limit when volume flow is
selected as input.
Standard vol- Falling below this limit
ume lower causes a warning
warning limit when volume flow is
selected as input.
Standard vol- Falling below this limit
ume lower causes an alarm when
alarm limit volume flow is selected
as input.
Standard vol- Hysteresis that affects
ume alarm the alarm and warning
hysteresis limits when volume
flow is selected as
input.
Default value Value range /
[units] Setting options
(units regis-
ter)
Max. floating
point value
[kg]
(8520)
Min. floating
point value
[kg]
(8520)
Min. floating
point value
[kg]
(8520)
0.0 -
[kg]
(8520)
Max. floating
point value
[Sl]
(8522)
Max. floating
point value
[Sl]
(8522)
Min. floating
point value
[Sl]
(8522)
Min. floating
point value
[Sl]
(8522)
0.0 -
[Sl]
(8522)
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
Access
level
Read /
write
Read /
write
Read /
write
Read /
write
Read /
write
Read /
write
Read /
write
Read /
write
Read /
write