Rockwell Automation 2755 Enhanced Decoder Series B - Manual (Page 154)

10–19 Configuration: Host Message Replacement Rules
Publication 2755-833
Example 8: Stripping Unwanted Characters
Parameter Rule #1 Value
Source A|B
Symbology UPC-A
Symbol Number All
Find String Containing ^( . . . . . . )(. * )
Replace Entire String With \2
Minimum Field Length 0
Alignment Right
Fill Character None
Host Message Field Number 1
This rule allows the number system character (first character) and the
next 5 characters (the manufacturer’s identification code) to be
dropped when the data is sent to the host. This technique can be
useful in obtaining maximum throughput, as it helps minimize
communication and host program sorting time.
Example 9: Substituting Characters Within a String
Parameter Rule #1 Value
Source A|B
Symbology Any
Symbol Number All
Find String Containing ( . * )(123)( . * )
Replace Entire String With \1ABC\3
Minimum Field Length 0
Alignment Right
Fill Character None
Host Message Field Number 1
This example will substitute “ABC” for “123” within the string.
Note that if “123” appears more than once within the incoming data,
“ABC” will be substituted only for the last occurrence. For example,
“01234567” would become “0ABC4567”, and “01231237” would
become “0123ABC7”.