Logic in determining package sequence in maintenance planning

Question

Hi,
I have created a performance based strategy, with the package containing 2 cycles and 2 levels of hierarchy.
cycle 1        500H
cycle 2      1000H
So, the package sequence is showing
500H     1000H      1500H     2000H    2500H etc
1           2              1            2           1         etc
When I tested with measuring documents, I noticed that the package due always following the sequence of the cycle 1,2,1,2,1,2, regardless of the the measurement reading. The example I tested with the measuring document is as follows:-
                                              SAP assigned package due in IP10
1st measdoc = 600H                1
2nd measdoc = 1500H              2
3rd measdoc = 2500H              1
4th measdoc = 2520H              2
I thought, based on the packages defined in the strategy, I should be getting the package due as 1,1, 2,1, which is based on the difference between last reading and current reading.
Can someone shed some light on how SAP determine the Package due ?
Thanks !
Lip Huey

Answer 1

Hi Lip,
My start counter for the plan is 0
I schedule the plan in IP10
Now IN IP10 if i see the scheduling list it will show me the following list
Next planned counter reading, total counter reading, and completed counter reading.
So  when you schedule the plan system will calculate what will be the next planned reading for which maintenance will be due that is the column next planned counter reading. in  this case it will be 500
Now i enter a measuring doc for 600.
If i schedule again if you see the above columns it will show next planned reading as 500 but total counter reading as 600.
If you save this system will generate order and if you TECO the order and  schedule again ain IP10 and see the columns
It will show as completed counter reading as 600, next planned counter reading as 1100 and total counter reading as 600.
Next planned counter reading is calculated  as completed counter reading + 500 which is the next package 2 (If you have maintained shift factor late completion as 100%) If the shift factor is not maintained then sys will add 500 to previous planned reading to give next planned reading as 1000.
Please check all parameters in the tab page scheduling parameters in your plan
And for strategies check column hierarchy this will have an effect on what operations from task list are copied to order.
Regards
Pankaj