Rockwell Automation 2755 AdaptaScan Software - Manual (Page 154)

11–2
Publication 2755-838
A match table contains bar code data and/or metacharacters entered
by an operator. The Reader compares the match table entries with
the decoded bar code data. When matches are found, the Reader
determines whether or not a package has been read or activates
discrete output(s). A Reader match table may contain up to 128
match entries.
Match Function 1 = 456789
Match Function 2 = 123456
Match Function 3 = 245678
Match Table Definitions Package Definitions
Package 1 = Match Function 1
Package 2 = Match Function 2 and 3
For Example, assume the following match table entries and package definitions.
Reader 1
Reader 2
Reader 2 Symbols sent to
Reader 1 match table.
Reader 1 scans a package label with a label content of
999888 which does not correspond with any match table entry.
Reader 2 scans a label on the same package with a content of
123456 and 245678 which corresponds with the match table
definition for package 2.
Reader 2 turns on a discrete output of Reader 1 as a result of
the match. The discrete output of Reader 1 sets a diverter to
route the package to its proper location.
Reader 1
Reader 2
Reader 1
Reader 2
➁
➂
➀
Reader 1 scans a package label with a label content of
456789 which matches the package 1 definition.
Reader 1 turns on a discrete output as a result of the match to
route the package to it’s proper location.
Diverter
Diverter
What is a Match Table?