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Chapter 3 RFID PGL Commands
58
length
The decimal number that specifies the
length of the data to be read.
format
Replace the optional
format
parameter
with any non-zero number to convert the
data to hexadecimal format.
EPC Programming Example
This programming example shows reading and writing dynamic
EPC data to a tag.
~CREATE;HEX;431
//Create a form named HEX.
RFWRITE;HEX;RF3;16;AT1;
//Write Tag with data from dynamic RFID element 3.
//Length of data is 16, format is HEX.
ALPHA
//The following ALPHA element is defined below.
//It will be used to print the contents of the tag.
RFREAD@;AF1;16;10;10;0;0
//Read Tag Indicator character is “@”. Incorporate read
//data into Dynamic ALPHA field number 1. Length of
//ALPHA field is 16 characters. Place ALPHA field at
//dot position (10,10) on the form.
STOP
//Terminate the ALPHA element definition.
END
~EXECUTE;HEX
//Execute the form with dynamic data.
~RF3;“68656C6C6F746167”
//Dynamic data (in HEX) for Tag Write is
//“68656C6C6F746167”.
~AF1;*@1,16,1;*
//Print the data in AF1.
~NORMAL