Datalogic QuickScan i User Manual download pdf (Page 12)

Rules

8 QuickScan

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.

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Datalogic QuickScan i User Manual Page 12