Communication
11.23 DR 30 Process state
SIWAREX WT241
Manual, 05/2015, A5E36046748Aa 153
11.23 DR 30 Process state
Current states and process values in the scales can be monitored using process values and
advanced process values from data record DR 31. Monitoring selected data during
commissioning is extremely useful as it helps you to optimize parameters.
Procedure
● Read data record DR 30 cyclically or on a time-triggered basis
● Display/analyze the required tags
It is not always necessary to cyclically read data record DR 30. The most important process
variables are already cyclically transferred via the SIMATIC I/O interface.
For Modbus communication with a Modbus master, data record DR 30 (a tag area is read)
must be polled for you to receive the current data on the status of the scale.
Table 11- 23 Assignment of data record 30
Contains no. of data record
Data record length information
Information about which appli-
cation the data record belongs
to
Information about current data
record version
Set if belt load within offset
range
Zero offset procedure
active
Set if automatic zeroing is
switched on
Set if automatic zero tracking is
switched on
Min. belt load for total-
izing
Set if minimum belt load for
totalizing (DR6) is violated.
Totalizing not carried out if
TRUE.
Max. material flow rate
exceeded
Set if maximum material flow
rate is exceeded
Set if minimum load is violated
Min. belt speed violat-
ed
Set if minimum belt speed is
violated
Max. belt speed ex-
ceeded
Set if maximum belt speed is
exceeded
Set if minimum belt load is
violated
Set if maximum belt load is
exceeded
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