Allen-Bradley 2755-DD1A, Product Data

Page: 20 / 40

Bulletin 2755
Single/Dual-Head Enhanced Bar Code Decoders
Product Data
20
Example 3: Sorting by Symbology
By setting up specific rules to check for symbology, different code types may
be sent to the host in a predetermined order.
Parameter Rule #1 Value Rule #2 Value
Source A|B A|B
Symbology Code 128 I 2 of 5
Symbol Number All All
Find String Containing .* .*
Replace Entire String With & &
Minimum Field Length 0 0
Alignment Right Right
Fill Character None None
Host Message Field
Number
1 2
In this case, 2 symbols per package will be read. The symbols are sent to the
host with the Code 128 symbol first, or its No-read Replacement Message.
This technique may be useful in applications where these two symbologies
are used together.
Example 4: Sorting by Symbol Number
Parameter Rule #1 Value Rule #2 Value
Source A|B A|B
Symbology Any Any
Symbol Number 2 1
Find String Containing .* .*
Replace Entire String With & &
Minimum Field Length 0 0
Alignment Right Right
Fill Character None None
Host Message Field
Number
1 2
The above rules allow the host to receive the symbol data in reverse order
from the order it was decoded. The first symbol decoded (symbol number 1)
will be sent as field number 2, while symbol number 2 will be sent first.