GE Mark VIe System Manual page 63

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
Group Code
Vendor code (one-character)
Contact your GE representative or GE Technical Support for further information on vendors and
V
manufacturing locations.
Year code (one character)
Y
Refer to the table
Month code (one character)
M
Refer to the table
Day-of-month code (one character)
D
Refer to the table
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
S S S
2 1 0
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.
Control System Overview
S S . The following table describes what these group codes represent.
2 1 0
Year Codes for permitted values.
Month Codes for permitted values.
Day-of-Month Codes for permitted values.
Example Serial Number/Barcode
Public Information
Description
Serial Number
GEH-6721_Vol_I_BP System Guide 63