22-07-2013, 04:52 PM
Capacity Planning in Repetitive Manufacturing
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Purpose
Repetitive manufacturing uses capacity leveling to carry out capacity planning for production
lines. You use the planning table in repetitive manufacturing to carry out capacity planning and
capacity leveling.
The planning table is laid out in periods and gives you an overview of dates and quantities for
materials and production lines.
The planning table allows the planner to dispatch production quantities. He can check the
production quantities at a glance as well as the current capacity load for the production line and
the availability situation for the products. Flexible strategies for automatic dispatching enable you
to create a production plan that optimizes use of capacities. Since planning frequently relates to
shifts, the planning table for repetitive manufacturing was enhanced for Release 4.0 by adding
several functions in shift planning.
Scheduling levels
There are three scheduling levels in capacity planning: Detailed planning, rate-based planning
and rough-cut planning. For capacity planning in repetitive manufacturing, it is rate-based
planning and detailed planning that are most important. In the planning table for repetitive
manufacturing, only capacity requirements can be displayed that are based on rate-based
scheduling or detailed scheduling.
Layout of capacity data on the planning table
How capacity data is presented on the planning table and the strategy that is used in the capacity
planning table for dispatching operations is controlled using capacity profiles. You can find these
in Customizing for capacity planning under capacity leveling. There you can maintain the so-
called overall profiles that are in turn made up of individual profiles. Generally there is one profile
for the planning table (SAPREMG001) and one profile for parallel processing on both planning
tables.
If you want to define your own profiles, you have the option of specifying a profile with the
parameter-ID KP1 in the user master. This profile is then used instead of the standard profile for
the planning table. If you save a profile using the parameter ID KP2, this profile is used for
parallel processing.
When creating your own profile for parallel processing, you should note that for the assigned
control profile, both a periodic and a continuous layout are possible. You define this layout by
setting the indicator layout type 3 in the control profile.
Scheduling in the Planning Table
Use
If you use the planning table in conjunction with capacity planning, the system carries out a lead
time scheduling for the planned orders.
In scheduling, the system calculates the production start and finish dates of the orders. The finish
date determines the period to which the production quantities are assigned in the planning table.
The system also calculates the dates of the planning operation (that is, the operation with the
work center used for scheduling - usually the production line) which are displayed separately.
If you access the planning table and capacity planning is active, the system carries out
scheduling automatically.