Efficiency application
This parameter is used in cost calculations in conjunction with the WSTEFFINH - Work center efficiency history parameter (GPA chapter, MIS group).
For optimized production some of the operations in a routing are more efficient than others, whilst others require more efficient machines than others. You can specify the relative efficiency of both your operations and your machines. For the work order cost calculations, the efficiency percentage of your operations and machines is always applied to the run time, that is, the time it takes to perform the operations required to manufacture a product. You use this parameter to define whether the efficiency percentage is also to be applied to the setup time, that is, the time that it takes for the machinery to be set up ready for use.
Parameter WSTEFFINH - Work center efficiency history (GPA chapter, MIS group)
Setup + run times - This is the default value for this parameter.
If the WSTEFFINH - Work center efficiency history parameter (GPA chapter, MIS group) is set to No, work order cost calculations include the work center efficiency percentage in the setup time calculations.
Operation time will be calculated as: (work center efficiency percentage * (setup time + run time)) * (operation efficiency percentage * (setup time + run time)).
If WSTEFFINH is set to Yes, the work center efficiency percentage is excluded from the work order cost calculations for setup time.
Operation time will be calculated as: (work center efficiency percentage * run time) * (operation efficiency percentage * run time).
Run time
The efficiency percentage of your operations and your machines is always applied to the run time calculations.
For setup time calculations, work order cost calculations do not include the operation efficiency percentage or the work center efficiency percentage. The value of the WSTEFFINH - Work center efficiency history parameter is ignored.
For run time calculations, work order cost calculations only include the operation efficiency percentage and the work center efficiency percentage if the WSTEFFINH parameter is set to No.
Example
Operation efficiency percentage = 80%
Work center efficiency percentage = 90%
Work center setup time = 100 minutes
Work center run time = 100 minutes
| Parameter: WSTEFFINH - Work center efficiency history | ||||
| No | Yes | |||
| Parameter: OPEEFFAPP - Efficiency application | Setup + run times | Setup time | 138.89 = 100/0.8/0.9 | 125 = 100/0.8 |
| Run time | 138.89 | 125 | ||
| Run times | Setup time | 100 | 100 | |
| Run time | 138.89 | 125 | ||
Level of localization/Global variable
This parameter is defined at the level Site.It belongs to Chapter GPA (Manufacturing) and the Group MIS (Miscellaneous),The following parameters are also associated with this chapter and group :
- ALLHOR (Allocation horizon)
- GREGENPLN (Planning regeneration)
- LOTMGT (Lot management)
- PLMMAXFIL (Max no. of elements to process)
- SFTTANDA (Time)
- STRCLEMOD (Sub contract close method)
- WSTEFFINH (Work center efficiency history)
The global variable GOPEEFFAPP is associated with it.
Functions concerned
The following functions are associated with this parameter :
Costing > Cost calculations > Budgeted cost calculation
Costing > Cost calculations > Revised cost calculation
Costing > Cost calculations > Simulated cost calculation
Costing > Cost calculations > Standard cost calculation
Manufacturing > Batch processes > Scheduling/descheduling > Descheduling
Manufacturing > Batch processes > Scheduling/descheduling > Scheduling
Stock > Reorders > MRP processing
Manufacturing > Planning > MRP processing
Manufacturing > Planning > Mass replanning
Manufacturing > Planning > Work order