Printronix SL5000e manual Rfid PPI1 Commands

Chapter 2 RFID PPI1 Commands

Read Tag

Purpose This command allows data from the RFID tag (embedded in the smart label) to merge into any previously defined dynamic data field. It is equivalent to the Field Number command (^FN) except that the data come from the RFID tag.

Format ^RT x, start, length, hex, retries, motion, reserved

^RT Read Tag command.

xSpecified Field Number (value assigned to the field). The default is 0. The acceptable value range is 0 to 9999.

start	Location where data will be read from the
	RFID tag. The PPI1 only supports Alien
	Technology Class 1a tags, which have
	only one 8–byte block. Therefore, start
	will be set to 0, regardless of the
	specified value.
length	The number of blocks to be read from the
	RFID tag. The PPI1 only supports Alien
	Technology Class 1a tags, which have
	only one 8–byte block. Therefore, length
	will be set to 1, regardless of the
	specified value.
hex	This flag indicates whether the data, after
	being read from the RFID tag, should be
	translated into hexadecimal format. The
	default is 0, meaning the data will not be
	translated. The other acceptable value is
	1, meaning the data will be translated
	into hexadecimal format.
retries	The number of automatic attempts to
	read data from the tag if previous reads
	failed. The PPI1 absorbs the number and
	uses the value on the control panel’s
	LCD.

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