Rockwell Automation 2755 Enhanced Decoder Series B - Manual (Page 151)

10–16 Configuration: Host Message Replacement Rules
Publication 2755-833
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.