Rules Hierarchy (In Bar Codes) - Symbol LS 4008i Product Reference Manual

LS 4008i Product Reference Guide
The switching back to normal rules can also be done in the "sale" rule. For example, the
rule may look like this:
When scanning a bar code of length 15, send the next 2 characters, send the
class key, send the next 8 characters, send the stock key, turn off rule set 1.
It is recommended that you scan the
programming a rule belonging to an alternate rule set.
In addition to enabling and disabling rule sets within the rules, you can enable or disable
them by scanning the appropriate bar codes on 13-11.

Rules Hierarchy (in Bar Codes)

The order of programming individual rules is important.The most general rule should be
programmed last.
All programmed rules are stored in a buffer. As they are programmed, they are stored at
the "top" of a rules list. If three rules have been created, the list would be configured as
follows:
Third Rule
Second Rule
First Rule
When data is scanned, the rules list is checked from top to bottom to determine if the criteria
matches (and therefore, if the actions should occur). Input is modified into the data format
specified by the first matching set of criteria it finds. Be sure that your most general rule is
the last one programmed.
For example, if the THIRD rule states:
When scanning a bar code of any length, send all data, then send the ENTER key.
And the SECOND rule states:
When scanning a Code 128 bar code of length 12, send the first four characters,
then send the ENTER key, then send all remaining data.
If a Code 128 bar code of length 12 were scanned, the THIRD rule would be in effect. The
SECOND rule would appear to not function.
Note also that ADF rules are actually created when you use the standard data editing
functions. Scan options are entered as ADF rules, and the hierarchy mentioned above also
13-6
Disable All Rule Sets bar code on page 13-11 after