Advanced Data Formatting 14 - 5
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 cr eated when the standard dat a editing functions are used. Scan option s are
entered as ADF rules, and the hierarchy mentioned previou sly also applies to them. For the scanner , th is applies to
prefix/suffix programming in the parameter Scan Data Transmission Format.
These rules reside in the same “rule list” as ADF Rules, so th e or de r of the ir cre ation is also impor tant.
Default Rules
Every unit has a default rule to send all scan data. Units with custom soft war e may have one or more de fault rule s
burned in. The rules hierarchy checks user programmable rules fir st, then the default rules. Default rules can be
disabled by entering the following general rule in the user programmable buffer:
When receiving scan data, send all data.
Since this rule always applies, ADF never goes into the default rules.
Special Considerations for Multipoint Networks
ADF rules scanned by an ind ividu a l sc anne r ar e NOT broadcas t to ot he r sca n ne rs in the pic on et , as ar e oth e r
parameters; however, ADF rules that 123Scan generates ARE broadcast to all sca nners in the piconet. 123Scan
rules transmitted from the base are stored at the BEGINNING of the ADF rule buf fer, regardless of the presence of
existing rules, while rules scanned by the scanner are appended to the existing buffer. For this reason, transmit
rules to be shared by all scanners from 1 23Scan FIRST. Then, scan rules to customize an in dividual scanner af ter
123Scan rules are transferred.