User manual

Copyright © 1999-2002 US Automation Inc., All Rights Reserved.
11
Mode Menu
The mode determines what kind of error proofing the EP1 will perform,
and therefore what kind of barcode labels will be required.
From the Options listed in figure 7, select one of the following modes:
1. Part Number – checks to make sure part numbers match, requires 2 barcode labels one pick ticket and
one parts bin label.
2. Job Sequence Number – checks for a valid Job Sequence Number, requires 1 barcode label with JSN
only.
3. JSN/ Part Number – checks for a valid part number and valid Job Sequence Number, requires 2
barcode labels one pick ticket and one parts bin label.
1.) Part Number mode: This mode is the easiest to set up and use. This mode checks part numbers only. To
use the Part Number Mode the user will scan the pick ticket and then scan a parts bin barcode and the EP1
will perform a check to make sure the part numbers match. The pick ticket can be scanned before the parts
bin barcode, or the parts bin can be scanned before the pick ticket, the order doesn’t matter. The EP1 is
looking for pairs of barcodes.
Barcodes for the Part Number Mode can be configured in any of a number of ways. If you find you are running
short on space on your pick tickets then you might want to consider reducing your part number barcode down to
a subset of the original part number. For example by using only the last 4 digits of the part number you can
reduce your barcode length by half. Figure 8 shows an example of a Pick Ticket barcode label where this has
been done. Figure 9, item 1 is an example of a 2-dimensional Parts Bin Barcode label in the GM standard
1724A format (also known as PD417 format). Notice in figure 9, item 2 that the lower four-digits of the part
number matches the number in figure 8; this is an example of a subset. The EP1 makes the assumption that you
will remove the upper digits of a part number if you have to reduce the size of the barcode. To reduce the size
of a barcode you must remove the upper digits first and leave the lower digits for checking. This is called a
subset of the original part number. The EP1 performs a subset check automatically for you if you supply it with
barcodes, which are a subset of the original full part number. For example, look at fig 8 & 9, your Parts bin
barcode is 10310099 and your Pick Ticket barcode is 0099. Simply strip 1031 off your parts bin barcode and
the end result is 0099. Your Pick Ticket and Parts Bin barcode numbers now match. So you can reduce a part
number from an 8-digit format to a 4-digit format as long as you always remove the upper 4 digits and leave the
lower 4 digits for parts matching. As a user you are responsible to make sure that you have left enough digits in
place to accurately discriminate between different parts.