Register Designation Type Display / purpose
2200 “Input level warning" level
monitoring
BOO‐
LEAN
Parameter is used with 2-stage level monitoring.
Without inversion, warning detection is performed via
HIGH level at level warning input
0 - DO NOT INVERT INPUT LEVEL
1 - INVERT INPUT LEVEL
2201 "Input level fault" level moni‐
toring
BOO‐
LEAN
Parameter is used with 2-stage level monitoring.
Without inversion, error detection is performed via a
HIGH level at the level error input
0 - DO NOT INVERT INPUT LEVEL
1 - INVERT INPUT LEVEL
2202 "Switchover" level monitoring BOO‐
LEAN
This setting can be used to switch between 2-stage
and continuous level monitoring
0 - ACTIVATE 2-STAGE LEVEL MONITORING
1 - ACTIVATE CONTINUOUS LEVEL MONITORING
2203 "Warning threshold cont.
mode" level monitoring
UINT8 With continuous level monitoring:
Specification of a threshold value (in [%] of the max‐
imum level); if this threshold value is not reached, a
warning is generated by the level monitoring
0 … 100%
2204 "Error threshold cont. mode"
level monitoring
UINT8 With continuous level monitoring:
Specification of a threshold value (in [%] of the max‐
imum liquid level); if this threshold value is not
reached, an error is generated by the level moni‐
toring
0 … 100%
2205 "Unit liquid level" level moni‐
toring
BOO‐
LEAN
This setting enables the continuous level measure‐
ment unit to be selected
0 - LEVEL DATA IN % (RELATIVE TO THE MAX‐
IMUM)
1 - LEVEL IN LITRES (ABSOLUTE FIGURE)
2206 "Total volume storage tank"
level monitoring
UINT16 Specifies the capacity of the storage tank containing
the feed chemical
1 … 65535 l
2.10.10 "Debug data" register
These register inputs are all only for function code "0x03" (Read
only).
Supplementary operating instructions for Modbus RTU
44
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