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PPDS Optimizer - Can it constrain more than one capacity on an operation

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Hello,

I have a question on the capabilities of the PPDS optimizer to constrain multiple resources on an operation. I am going to provide a scenario and two examples.  The difference between the two examples is the Scheduling Basis that you set on the Scheduling Tab of CR02.

Assume you have a workcenter set up in the following manner:

  • In ECC the workcenter has both a machine and labor pool capacity
  • Both of the capcities are marked as relevant to finite scheduling
  • The machine capacitty is avaiilable 24 hours a day, 7 days a week
  • Assume the labor pool is available only one 8 our shift a day and only on Monday and Tuesday

   

Example 1:

  • The scheduling basis is set to labor pool
  • Two order that requires 24 hours of capacity needs to be planned for same day thru the work center
  • After the MRP heuristic(infinite plan), the two orders are both planned with 8 hours on Mon, Tues and the following Monday. It is respecting the 8 hours of capacity available for the labor pool for each order, but the orders are overlapping because it is an infinite plan.  It is respecting the 8 hours becasue the scheduling basis is the labor pool. 
  • Run the Optimizer, The two orders will no longer overlap. One of them will Run after the first Order that is planned Mon, Tue,Mon.

 

Example 2

  • The scheduling basis is set to machine
  • Two order that requires 24 hours of capacity needs to be planned for same day thru the work center
  • After the MRP heuristic(infinite plan), the two orders are both planned with 24   hours on Mon. It is respecting the 24 hours of capacity available for the machine. The orders are overlapping, becasue is an infinite plan.  It is respecting the 24 hours on the machine becasue the schedling basis is machine. 
  • Run the Optimizer, The two orders will no longer overlap, thet will be planned with one on Monday and the other on Tuesday.

 

Questions:

  • Does what I describe make sense based on  the difference being the Scheduling Basis?
  • Is there anyway to make the capacity constrainst of the two capacities be repsected at the same time? Or do you have to pick one with the scheduling Basis?

Thanks


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