RE: DRP 101

Multi-level DRP works in a single batch DRP run when the same item is
travelling from one facility to the other, to the other. In your case, you
have items built in one facility, then moved to another, where it is being
used as a component to build a new item, hence the items are not the same.
You need to run MRP then DRP both at the toop level facility, then MRP in
the facility supplying the components to the facility above, then DRP in
that facility to create demand on the lower level facility, then MRP on that
lower level facility, and so on.

Hope this helps
Daniel Warthold P.eng CPIM


-----Original Message-----
From: daparnin@xxxxxxxxxxxxxxxxxx [mailto:daparnin@xxxxxxxxxxxxxxxxxx]
Sent: Thursday, February 03, 2005 09:50
To: bpcs-l@xxxxxxxxxxxx
Subject: [BPCS-L] DRP 101






Greetings,

We are on BPCS 4.0.2 and have a situation that I think DRP might be the
tool that we need to utilize.  So far I haven't been able to set things up
correctly in our test database to get the results that I'm expecting.
About ten years ago I used to know how MRP/MPS worked but I haven't used it
since then and have forgotten a bit of what I knew.

We have three facilities.  In addition to their own customer orders
facility 1 currently manufactures component parts for facilities 2 and 3.
We now have some new finished good parts at facility 2 that will use a
component built by facility 3.  This component has a component part in it
built by facility 1.  What we want is facility 2's requirements to generate
requirements that trickle down for facilities 3 and 1.

In DRP100 for facility 1 we currently have entries for *ALL from facility 1
to both 2 and 3.  What do I need to do to set things up for these new
parts?  Do individual entries need to be set up for parts going "backwards"
from 2 to 3 to 1?  How does DRP500 fit in with MRP500 and MRP600?  I have
tried running DRP500 but I'm a bit confused as to the correct order to list
the facilities so that the planning is done correctly.  Any help would be
greatly appreciated.

Thanks.

Dave Parnin
Nishikawa Standard Company
Topeka, IN  46571
daparnin@xxxxxxxxxxxxxxxxxx

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