The setup time of an operation that is to be processed at a work
center can depend on which operation was processed previously at
the work center. The setup time thus depends on the setup state of
the work center.
Until now you could adjust the setup times of operations by
manually changing the setup standard values on the planning
In Release 4.0A various new planning functions are available (on
the capacity planning table) that automatically take the setup
state of the work center into account:
Adjust of setup times of dispatched operations
This functions adjusts the setup time
of every operation in a commitment depending on the predecessor at
the work center. To select the function choose:
Functions -> Adjust setup time ->
For this function you must activate
Insert operation and Plan.
direction forwards in the strategy profile.
Dispatch to optimize setup time
This function dispatches operations
in an already existing commitment in such a way that the total
setup time is reduced as little as possible. You adjust the setup
times of the dispatched operations by carrying out the automatic
setup time adjustment after dispatching.
If you want to use this function for
dispatching you should activate the indicator in
Dispatch to optimize setup time in the
strategy profile. This automatically activates Insert
Setup time optimization
This function first generates a
sequence for the operations to be dispatched that minimizes the
setup time. The initial setup state is also taken into account.
Then the operations are dispatched in this sequence with adjusted
setup times, either directly after an already existing commitment
or on today's date if no operations have been dispatched to the
work center. If you activate Date entry on
dispatching in the strategy profile then you can
specify a dispatching date.
If you want to use this functions you
must activate the function Setup time
optimization in the strategy profile. This
automatically activates the functions Planning
direction forwardsand Insert
operation. Dispatching to optimize
setup and Dispatch at earliest point in
time are automatically deactivated.
All these planning functions are cross-work center
To calculate the setup time of an operation these functions do
not use the setup standard value from the operation but a suitable
standard value from the
matrix that you maintain in Customizing for capacity
planning. In the setup matrix the setup standard value is derived
from the setup state of the work center as follows:
A setup state of the work center is defined by the
setup group category and the
setup group key in the operation. The sequence of two
operations that are processed at the work center one after the
other corresponds to the transition between two setup states of the
work center. You assign the setup standard value for the successor
operation to this setup transition in the setup matrix.
You must also specify in the setup matrix whether transitions
are permitted or not. This is automatically taken into account when
optimizing setup time or when dispatching operations to optimize
setup time. If you automatically adust the setup time for the
commitment then transitions that are not permitted are