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W
F
EIGHING
UNCTIONS AND
Name
Maximum loading time
Trailing weight
Reserve_21_12
Log selection
Reserve_21_17
Table 5-12
Allocation of DR 21
5.14.1 DR 21 – Loading quantity
The total quantity for loading operation can be set using this parameter.
The belt is stopped when the total quantity is achieved in totalizing memory
1 and the totalizing is ended. For loading the predefined quantity again,
totalizing memory 1 must be deleted.
5.14.2 DR 21 – Maximum loading time
The maximum loading time is started as well when loading is started. If the
total quantity is not achieved before this time has elapsed, SIWAREX FTC
sends out a technology message.
5.14.3 DR 21 – Trailing weight
The trailing weight is the material quantity that must be weighed in addition
after the set value has been reached..
5.14.4 DR 21 – Log Selection
After the total quantity has been reached, a log can be created
automatically. One of four log text messages can be defined with this
parameter.
5.15 DR 30 Process Status 1 (NAWI, Force measurement, Belt scale)
The process values and the expanded process values can be used to monitor the
current states and data in the non-automatic weighing instrument. Observing the
selected data is very helpful in test operation for optimizing parameters. The status
can also be monitored if the SIWAREX FTC is controlled by the SIMATIC CPU.
The NAWI- and Conti-status flags are simultaneously updated in DR 32 as well -
process status loss-in-weight scale.
Name
NAWI status flags
SIWAREX FTC
P
ARAMETERS
Type
Address
Default
TIME
DBD004
REAL
DBD008
REAL
DBD012
BYTE
DBB016
BYTE
DBB017
18
Type
Address
Range of Values / Meaning
DINT
DBD000
Status bits (see below)
5-73
Range of Values / Meaning
If 0, the continuous operation
0
0: deactivated
>100: time f. Monitoring the maximum loading
time.
0
Quantity that still must be dosed after reaching
the set value
0
Reserved
0
0:
No automatic logging
performed
1:
autom. logging with text 1
2:
autom. logging with text 2
3:
autom. logging with text 3
4:
autom. logging with text 4
0
Reserved
Reference
5.14.2
5.14.3
5.14.4
Reference
5.15.1
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