Rules Hierarchy (In Bar Codes) - Symbol Cyclone M2000 Series Product Reference Manual

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Cyclone M2000 Series Product Reference Guide
To switch between the two sets of rules, a "switching rule" must be
programmed. This rule specifies what type of bar code must be scanned to
switch between the rule sets. For example, in the case of the "sale" rule above,
the rule programmer wants the cashier to scan the bar code "M" before a sale.
To do this, a rule can be entered as follows:
When scanning a bar code of length 1 that begins with "M", select rule set
number 1.
Another rule could be programmed to switch back.
When scanning a bar code of length 1 that begins with "N", turn off rule set
number 1.
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 Disable All Rule Sets bar code after
programming a rule belonging to an alternate rule set.
In addition to enabling and disabling rule sets within the rules, you can disable
them by scanning the appropriate bar codes in Disable Rule Set on page 4-13.

Rules Hierarchy (in Bar Codes)

The order of programming individual rules is important. The most general rule
should be programmed first.
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
4-6