Siemens SIWAREX FTC - DR 21 - Loading Quantity; DR 21 - Maximum Loading Time; DR 21 - Trailing Weight; DR 21 - Log Selection

WEIGHING FUNCTIONS AND PARAMETERS
Name Type Address Default Range of Values / Meaning Reference
If 0, the continuous operation
Maximum loading time TIME DBD004 0 0: deactivated
>100: time f. Monitoring the maximum loading
time.
5.14.2
Trailing weight REAL DBD008 0 Quantity that still must be dosed after reaching
the set value
5.14.3
Reserve_21_12 REAL DBD012 0 Reserved
Log selection BYTE DBB016 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
5.14.4
Reserve_21_17 BYTE DBB017 0 Reserved
18
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 Type Address Range of Values / Meaning Reference
NAWI status flags DINT DBD000 Status bits (see below)
5.15.1
SIWAREX FTC
5-73