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Modbus
register
Data type /
Size in bytes
Parameter
Description
Default value
[units]
(units register)
Value range /
Setting options
Access
level
8527
Float / 4
Volume lower
warning limit
Falling below this limit
causes a warning when
volume flow is selected
as input.
Min. floating
point value
[m
3
]
(8521)
Read /
write
8529
Float / 4
Volume lower
alarm limit
Falling below this limit
causes an alarm when
volume flow is selected
as input.
Min. floating
point value
[m
3
]
(8521)
Read /
write
8531
Float / 4
Volume alarm
hysteresis
Hysteresis that affects
the alarm and warning
limits when volume
flow is selected as in‐
put.
0.0
[m
3
]
(8521)
-
Read /
write
8506
Float / 4
Mass upper
alarm limit
Exceeding this limit
causes an alarm when
mass flow is selected
as input.
Max. floating
point value
[kg]
(8520)
Read /
write
8508
Float / 4
Mass upper
warning limit
Exceeding this limit
causes a warning when
mass flow is selected
as input.
Max. floating
point value
[kg]
(8520)
Read /
write
8510
Float / 4
Mass lower
warning limit
Falling below this limit
causes a warning when
mass flow is selected
as input.
Min. floating
point value
[kg]
(8520)
Read /
write
8512
Float / 4
Mass lower
alarm limit
Falling below this limit
causes an alarm when
mass flow is selected
as input.
Min. floating
point value
[kg]
(8520)
Read /
write
8514
Float / 4
Mass alarm hys‐
teresis
Hysteresis that affects
the alarm and warning
limits when mass flow
is selected as input.
0.0
[kg]
(8520)
-
Read /
write
8533
Float / 4
Standard vol‐
ume upper
alarm limit
Exceeding this limit
causes an alarm when
volume flow is selected
as input.
Max. floating
point value
[Sl]
(8522)
Read /
write
8535
Float / 4
Standard vol‐
ume upper
warning limit
Exceeding this limit
causes a warning when
volume flow is selected
as input.
Max. floating
point value
[Sl]
(8522)
Read /
write
8537
Float / 4
Standard vol‐
ume lower
warning limit
Falling below this limit
causes a warning when
volume flow is selected
as input.
Min. floating
point value
[Sl]
(8522)
Read /
write
MODBUS commands
4.10 Modbus holding registers tables
FCT030 Modbus (From firmware 4.0)
Function Manual, 06/2018, A5E39931813-AB
79