Turnaround/Shutdown Process implementation using PS/PM modules

We are a larger Size Fertilizer Industry, currently in the process of SAP Implementation. We carry out Annual Turnarounds each year for annual maintenance / overhauling of our equipment / machines.
The total numbers of maintenance jobs are around 1500. Each Job has an average 25 Operations. The Total duration of Turnaround is 15 Days max. Due to extensive number of jobs being handled in a very short time span, we require Planning with respect Job Execution and also related to material planning / Manpower / other internal & external services resource Planning. Moreover the Budget planning / control of the Turnaround is also part of our business.
The Planning of Turnaround starts 10 months before commencement of Turnaround. Starting from finalization of maintenance Jobs, material reservations, Budget Planning, Maintenance jobs scheduling in such a way to fit in all jobs within 15 days time span and develop a logical / technical viable links (relationship) between various operations within one job as well as between different jobs. Based on this relationship critical path is identified and activity Bar Chart is generated. The entire planned Project is then freeze as our target / base line and Planned S-Curve is generated. Before commencement of Turnaround, the material availability is ensured through monitoring of material procurement from Purchase requisition to Goods receipt.
Thereafter during Turnaround, the actual progress of maintenance jobs is monitored against the target plan on 12 hourly basis. Based on this monitoring we identify the activities lagging behind the Plan so that effective actions may be taken to expedite job progress. The daily progress is updated in terms of earned progress percentage. Moreover for management overview, Planned Vs actual S-Curve is generated.
IN SAP Scenario we are planning to configure our above process through PM / PS integration. Maintenance Work orders will be created for all jobs with reference to equipment Tag number to maintain history. Moreover, material and other resources will be attached to relevant orders / operations. Relationship between orders and their operations will be maintained. We intend to attach these orders Operations to PS Moreover we require bottom up scheduling using PS Planning board as mentioned below :
Operations       Order     Activity       Network Header       WBS element        Project
We find ourselves handicapped to incorporate progress in terms of percentages, although we have managed to get percentage by putting duration of work completed on order operations level. However, getting percentage progress through duration input will not serve the purpose. Please refer following example:
u2022     An operation is planned for 100 hours.
u2022     During execution, 50% job completed in 20hours.
u2022     Remaining duration should appear as 50hours not as 80hours.
u2022     On contrary in SAP (as far as we know), if I put 50 hours in operation to get 50% progress , this will reflect wrong information as 50% job has been completed in 20 hours.
Can anybody suggest a solution in either PM,PS or combination of both modules.

you will need to use PM/PS as follows
Create a Shut down project
Create network activities for scheduling your shut down project
Create PM orders - which could be corrective action, planned, unplanned or preventive
Assign the order headers to network activity
Now you can use the PS scheduling functionality (bottom up planning as you require) - you will also see the PM orders on the planning board
For confirmation of activites you should use the forecast hours and this will correct the POC
The POC can be rolled up using Progress Analysis for your S Curves

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