Understanding Capacity Plan Regeneration
Use the CRP/RCCP Regeneration program to compare prospective resource requirements to the capacity that is available in critical work centers. The capacity plan indicates whether you should revise the schedule to create feasible workloads or improve the use of limited resources.
When you run the CRP/RCCP Regeneration program, the system:
Identifies critical work centers.
Identifies the pacing resource for critical work centers.
Calculates the rated capacity for critical work centers.
Calculates the MPS load for critical work centers.
To calculate rated capacity for critical work centers, the system uses this standard formula:
Number of employees (or machines) × hours per day × efficiency factor × utilization factor
You can manually calculate efficiency by dividing standard hours by actual hours. For example, a crew requires ten hours to complete a job that has standard hours established at eight hours, the crew is working at 80 percent efficiency (8 ÷ 10 = .80).
For reference, the inverse operation (actual hours ÷ standard hours) is called realization.
The program calculates utilization by finding the number of hours in a day that the work center is actually available for working compared to standard. One hundred percent utilization is an unrealistic goal because preventive maintenance, employee breaks, and other factors typically affect utilization.
You calculate the MPS load for critical work centers by using either the routing table for planned work orders (+PLO) or the routing instruction table for firm work orders (+WO) with a routing attached. If the work order is firm (meaning that a header is created) but does not have a routing instruction attached, the system uses the routing table. The formulas for calculating MPS load are:
Planned orders × pacing hours from the routing table
Firm orders × pacing hours from the routing instruction table
The code in the Prime Load field in the Work Center Master File table (F30006) determines the type of pacing at the work center.
Operations are backscheduled using the same logic in JD Edwards EnterpriseOne Shop Floor Management. This operation schedule places load into the proper time frame. You must enter the time basis code and order quantity into the equation for load calculation.
The system uses this formula to calculate the load for an operation:
Work order quantity × number of pacing hours on routing ÷ time basis code
The system generates messages that indicate whether the load is over-capacity or under-capacity.