| Printing Exchangeable ConfigurationsAn item is exchangeable
with another item at a particular point on the assembly line, if at that point
the two items have the same specifications. During the exchange, the physical
products are exchanged. This means that the WIP that was assigned to one
assembly order is now linked to the other assembly order. In LN, the serial numbers
and as-built structures of the assembly orders are exchanged. How to use exchangeable configurations An exchange occurs according to these steps: Define the
exchangeable configurations, using a code, in Line Assembly Control (LAC). The
code is linked to a line segment. Options are linked to the exchangeable
configurations. If you want to exchange two orders, LN first checks whether
the configurations are exchangeable, that is, whether the options combinations
of these orders are the same. When an assembly
order on the specified line segment has the same options as those options
linked to the exchangeable configurations, the order can be exchanged with
another assembly order (also with the same options as those options linked to
the exchangeable configurations) on this segment. Any orders with the same
options that are linked to the exchangeable configurations can be exchanged on
this line segment. Then, if the configurations are exchangeable, LN checks whether the
order content of the orders is the same up to this point LN first checks if the two assembly orders that
you want to switch have the same exchangeable configurations. Two assembly
orders can only be qualified as exchangeable if the options that are linked to
the exchangeable configuration are the same. This does not mean that the
assembly orders that have those options are the same up until the specified
line segment. If the orders do not have the same exchangeable configurations, LN stops the process and
the exchange does not occur. If the orders do have the same exchangeable
configurations, LN checks
the actual assembly order content up to the point of exchange. If the order
content is the same, LN performs the exchange. By first matching these exchangeable configurations, you
can be reasonably sure that the assembly orders are identical before going to
the extra time and effort of comparing the actual order content. If also the order content is the same, the exchange is
performed. LN can also exchange assembly orders in a
buffer or at a line station. To exchange orders in a buffer can prevent
bottlenecks from occurring when an order is scheduled to exit the buffer at a
point when the necessary materials are not available. The configurations of two
assembly orders that are identical at this point in time can be switched, so
the orders emerge at the time when the necessary materials are available. To
exchange assembly orders on a line station involves supplying assembly lines
and main assembly lines.
Example You produce doors on the
supplying line. On this line, you have a
spare door that does not flow into the main assembly line order. On your main
line, you produce a product that uses doors in the end product. However, a door is
damaged, and cannot be used. Now you can substitute
the spare door from your supplying assembly line for the door that has been
damaged in the main assembly line, and delete the spare door from the supplying
line. | |