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 |
| 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 |
| 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. |
40