In Produmex Manufacturing there are three methods to modify the capacity that can be allocated:
Please note: Shift capacity change is not supported when using multidimensional allocation.
In Produmex Manufacturing shifts marked as ‘Overtime’ are never used by the allocation logic and can be added for administrative reasons only. In order to apply overtimes, create a new Shift Day type.
In the example we have a ‘Normal Working Days’ shift day with two administrative overtime shifts: a ‘Morning Overtime’ shift and a ‘Night Overtime’ shift. In order to create a new shift day type, we duplicated the Shift Day by selecting the ‘Duplicate’ option from the right-click menu of the Shift Day type.
We named this new shift day type as ‘Normal Working Days with overtime’ and also changed the code of the shift day type. Then we simply unticked the ‘Overtime box’ for the night overtime shift and added the new shift day.
Then alter the Shift Year Plan.
After clicking on the ‘Update’ button on the Shift Plan Year or the Work Center form, the Reallocator Report will open up. On this form every allocation affected by the shift day change is listed. Filter the list based on the status of the allocations with the ‘Ok’, ‘Warning’ and ‘Error’ checkboxes on the header. Only allocations with the checked status will be displayed.
In order to proceed, acknowledge the message by ticking the ‘Confirm’ checkbox under the grid. The ‘Proceed’ button will became active. Click on this button to apply the shift plan change.
To display the difference, we assigned the ‘Normal Working Days’ shift day type to the work day on the left side and the ‘Normal Working Days with overtime’ shift day to the work day on the right side.
The system will not automatically recalculate the scheduling when expanding the capacity. Affected production orders can be rescheduled with the following methods:
With default settings the shift capacity can only be decreased, if there are no allocations with the status ‘Error’ on the Reallocator Report.
If there are allocations with ‘Error’ status, the acknowledgement message is not displayed and the ‘Proceed’ button is not active.
To allow rescheduling triggered by capacity decrease, enable the ’Allow rescheduling Production Orders when shift day capacity is shrunk’ option on the MRP tab of Produmex Manufacturing settings.
In the case of a capacity shrinkage, production orders with affected allocations will be rescheduled automatically.
It is also possible to modify the capacity by changing the productive ratio of a shift day type.
|Productive Ratio||Total operation time||Total allocation duration|
|1||60 minutes||60 minutes|
|0.5||60 minutes||120 minutes|
|2||60 minutes||30 minutes|
The time scale of a work center defines its efficiency for performing a feature.
|Job Time Scale||Setup time||Job time||Teardown time||Total allocation duration|
|1||-||60 minutes||-||60 minutes|
|0.5||-||60 minutes||-||120 minutes|
|2||-||60 minutes||-||30 minutes|
The productive ratio of a shift day type and the time scale of the work center both affect the capacity allocated for an operation. Please refer to the example how the combination of these two settings affect the allocated capacity.
Total operation duration: 60 minutes
Shift day type: Normal shift
The table below shows how the Time Scale and the Shift Productivity affect the duration allocated for the operation.
|Time Scale||Shift productivity||Total allocation duration|
Resource unavailability or planned maintenance can be registered on the Work Center Unavailability Management form. No allocations will be scheduled for the work center on periods that are registered as ‘Unavailable’.
It is possible to add work center unavailability for a period that has allocations. In such cases those allocations have to be rescheduled.
To reschedule the production orders containing the affected allocations, click on the ‘Report Conflicts’ button. The Allocation Conflicts’ form will open. On this form every affected allocation is listed. Click on the ‘Reallocate Conflicting Production Orders’ button to reallocate the production orders containing the affected allocations.