Chapter 3 RFID PGL Commands
Read Tag
Read Tag is not a command, but an element of the ALPHA and BARCODE commands. See “Alphanumerics” and “Bar Codes” in the IGP/PGL Programmer’s Reference Manual for more information.
Purpose Embed RFID data into an ALPHA or BARCODE data field.
Format <RDI>position,length[,format];
<RDI> | The RFID Data Indicator character, as |
| defined by the RFREAD parameter in the |
| ALPHA or BARCODE commands. See |
| the ALPHA and/or BARCODE command |
| description for details. |
position | The decimal number that specifies the |
| starting position of the data inside the |
| transponder. |
length | The decimal number that specifies the |
| length of the data to be read. |
format | Replace the optional format parameter |
| with any |
| data to hexadecimal format. |
Example
Write tag contents, then read and insert the tag contents into an ALPHA field.
~CREATE;READTAG
//Create the READTAG form.
RFWRITE;AT1;*HELLOTAG*
//Program the string “HELLOTAG” into the tag
ALPHA
//The following ALPHA element is defined below: RFREAD@;AF1;27;3;5;0;0
//RFID Data Indicator character is “@”.
//Dynamic field number of this ALPHA element is 1.
STOP
//Terminate the ALPHA element definition.
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