Datamax-O'Neil Class Series Programmer’s Manual - Manual (Page 54)

Extended System-Level Command Functions
Class Series Programmer’s Manual 40
STX KaW Write Data to RFID Tag
(Direct Mode – Generic Read/Write Interface)
This command instructs the RFID device to write data to the tag. It is expected that the tag
transponder will be within the read / write distance of the RFID programming device; otherwise, a
warning will occur and a warning message (Read / Write Fail) will be displayed.
Syntax: <STX>KaWAaaabbbcdee…e<CR>
Where: Aaaa - Optional – for data in the ASCII format, followed by the byte
count (000-999).
bbb
- HF – Starting block number (000  maximum block number).*
UHF – Should be 000.
c
- Command 1. Reserved for Future (should be 0)
d - Command 2. Reserved for Future (should be 0)
ee…e
- Data to be encoded on RFID tag (HF – the last used block will be
null-padded, if necessary).
 Note: UHF ASCII formats must be 8 or 12 characters; and, UHF
Hexadecimal formats must be 16 or 24 character pairs.
Sample: <STX>KaW0000054455354[CR]
The sample writes the data “TEST” at block zero.
* Dependent on transponder manufacturer.
STX Kb Backfeed Time Delay
(Non-Display Models only)
The backfeed time delay command controls the time a printed label is allowed to remain “presented”
before being retracted to the start of print position.
Syntax: <STX>Kbnnn<CR>
Where: nnn - Seconds/10