User guide

Creating and Updating BOMs
PCN Process User Guide (301945-A)
Getting Started (An Overview): 1-7
Creating and Updating BOMs
A project’s first BOM needs to be created only once. After that, you’re basically
just updating the BOM from rev to rev, so that its number changes from minor
revision 00, e.g., 300123-A.00 to minor revision 01, e.g., 300123-A.01, and so on.
Creating an Initial BOM
To create a project’s first BOM:
1.
Determine the high-level components and the reporting structure, i.e.,
which component reports to which. See
Generating Part Numbers for an
Initial BOM
on page 3-6,
Structuring a BOM
on page 5-4, and
BOM
Structures
on page E-9.
2.
Determine the appropriate BOM generating program. Use
bn_bomprocess for Material Group 920 BOMs; mechbom for non-920
BOMs, and xcelbom if you’re a recent acquisition bringing a new project
into Bay Networks. See
BOM Generating Programs
on page 5-2.
If you are extracting parts from schematics, you must run
bn_bomprocess
from the directory containing the schematics, but otherwise you can run it
elsewhere because you can specify a config file that names other files and
input/output directories.
Run
mechbom
(when you cannot extract parts from a schematic) from your
working directory, after running
build_lst
to output
assembly
.lst
to that
directory.
Run
xcelbom
from the working directory where you have the Excel-based,
tab-delimited text file
PartNumber
.txt
.
3.
If you’re using bn_bomprocess:
a.
Create and edit a configuration file. See
Configuration Files
on page
5-2.
b.
Create or provide any needed input files to the process, such as
include, depop, or change files; device files; documents; or
mechanical data and drawings. See
Using EDA Data Servers
on page
1-6 and
The Input Files
on page 5-12.
c.
Specify output files by editing the configuration file as needed. See
The Output Files
on page 5-20.