RFID Guidelines
ZPL II Commands for RFID
23063L-003 Rev. 1 12/6/04 R110Xi/R170Xi User Guide 77
ZPL II Commands for RFID
This section contains the ZPL commands for RFID-specific applications. For non-RFID ZPL
commands, refer to the ZPL II Programming Guide (part number 46530L). A copy is available
on the R110Xi/R170Xi User CD (part number 23062-003) and online at
http://www.zebra.com/manuals.
In addition to reading or encoding RFID tags, these ZPL commands also provide for RFID
exception handling, such as setting the number of read/write retries before declaring a
transponder defective (set with
^RT and ^WT) or setting the number of labels that will be
attempted if an error occurs (set with
^RS).
For example, if an RFID label fails to program correctly or if the transponder cannot be
detected, the printer ejects the label and prints VOID across it. The printer will try to print
another label with the same data and format for the number of RFID labels specified by the
^RS command. If the problem persists, the printer follows the error handling instructions
specified by the
^RS command: the printer may remove the problematic format from the print
queue and proceed with the next format (if one exists in the buffer), or it may place the printer
in Pause or Error mode.
Important • If a parameter in the following tables 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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