Zebra XiIIIPlus Manuel d'utilisateur Page 87

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RFID Guidelines
ZPL II Commands for RFID
23063L-001 Rev. 2 6/21/2004 RXiIIIPlus User Guide 63
ZPL II Commands for RFID
Printing and encoding (writing) of “smart” labels is handled through the use of Zebra
Programming Language (ZPL). Each transponder has memory that can be read from through
ZPL commands, and most transponders have memory that can be written to. The printer
divides the ZPL commands that it receives into two categories: RFID and non-RFID (such as
the printing commands for bar codes or human-readable text). The RFID commands are
executed first.
ZPL commands also provide for exception handling, such as setting the number of read/write
retries before declaring a transponder defective. For example, if an RFID transponder fails to
program correctly or cannot be detected, the printer ejects it and prints the word “VOID
across the label. This process continues for the number of RFID tags specified by the
^RS
command using the same data and format.
The following pages provide the ZPL II commands that can be used for RFID applications.
Important • If a parameter is designated as not applicable, any value entered for the parameter
will be ignored, but the place holder for the field is required.
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