10.4.4.6 Process cell optimization with online assignment of a unit
Introduction
When optimizing a process cell with online assignment, the unit recipe is assigned to the unit
at the last possible moment. If the unit is not assigned when the batch is running, the "online
assignment" function becomes active.
"Online assignment" provides the following four options (strategies) for optimizing the utilization
of units:
● Preferred unit: If no other assignment is made before creating a batch, the unit specified
as preferred is used for the batch execution.
● The longest out of use: The unit that has not been used for the longest time is selected.
● Operator selection: The allocation of the unit can be performed manually in an operator
dialog.
● Process parameter: The variable selected in the process parameter field decides the unit
to be used.
Procedure in the BATCH Recipe Editor
1. Open the recipe.
2. Select
– With a flat recipe: the recipe step.
– With a hierarchical recipe: select the RUP (column is shown with a light blue
background).
3. Select the "Properties" command in the shortcut menu (select with right mouse button).
4. Select the "Allocations" tab (using the "Edit assignment" button for flat recipes).
5. In the "Strategy" box, enter one of the options described above for online assignment.
6. If you select the process parameter option, select the relevant formula parameter.
You can select the parameter with the "Unit" data type from a list box that will decide which
unit is selected when the batch is made.
7. Confirm the selection with "OK".
BATCH Recipe Editor
10.4 Creating recipes
SIMATIC BATCH V8.2
Operating Manual, 02/2016, A5E35958174-AA 529
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