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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Printronix SL5000e manual Rfid PPI1 Commands, Format RT x, start, length, hex, retries, motion, reserved