1.8.3
Serial Number/Barcode Convention
The serial number/barcode consists of seven characters composed from the following 31 permitted characters:
0 1 2 3 4 5 6 7 9 A C D E F G H J K L M N P R S T U V W X Y Z.
It is composed of five coded groups that represent the component’s supply vendor, date of manufacture, and component count
in the following format: VYMDS
2
S
1
S
0
. The following table describes what these group codes represent.
Group Code
Description
V
Vendor code (one-character)
Contact your GE representative or GE Technical Support for further information on vendors and
manufacturing locations.
Y
Year code (one character)
Refer to the table
for permitted values.
M
Month code (one character)
Refer to the table
for permitted values.
D
Day-of-month code (one character)
Refer to the table
for permitted values.
S
2
S
1
S
0
Serial number count code (three characters)
The total count of unique serial numbers generated for a component is reset to zero each day at 12:00 AM,
and then incremented by one for each unique serial number generated thereafter. This code limits the
number of unique serial numbers to 313 (29,791) per day. Contact your GE representative or GE Technical
Support for more information on this code.
Serial Number
Example Serial Number/Barcode
Control System Overview
GEH-6721_Vol_I_BP System Guide 63
Public Information