Datalogic QuickScan L, Руководство пользователя

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Rules
8 QuickScan ® L
Rules Hierarchy (in Barcodes)
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 match (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 gen-
eral rule is the last one programmed.
For example, if the THIRD rule states:
When scanning a barcode of any length, send all data, then send the ENTER key.
And the SECOND rule states:
When scanning a Code 128 barcode of length 12, send the first four characters,
then send the ENTER key, then send all remaining data.
If a Code 128 barcode 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 applies to them. For the scanner, this applies to prefix/suffix programming in the pa-
rameter Scan Data Transmission Format.
These rules reside in the same “rule list” as ADF Rules, so the order of their creation is
also important.
Default Rules
Every unit has a default rule to send all scan data. Units with custom software may have
one or more default rules burned in. The rules hierarchy checks user programmable rules
first, then the default rules. Default rules can be disabled by entering the following gen-
eral rule in the user programmable buffer:
When receiving scan data, send all data.
Since this rule always applies, ADF will never go into the default rules.
Special Considerations for Multipoint Networks
ADF rules scanned by an individual scanner are NOT broadcast to other scanners in the
piconet, as are other parameters.