Datamax-O'Neil Class Series II Programmer’s Manual - Manual (Page 133)

Extended System-Level Command Functions
Class Series 2 Programmer’s Manual 119
STX KtW Write Data to RFID Tag
(Direct Mode – HF [13.56 MHz] ISO15693 Tag 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:
KtWUn
1
…n
16
Bn
c
n
c
n
c
aaabcdee…e
Where:
Un
1
…n
16
- (Optional) Where n
1
…n
16
is the Unique Identifier
(UID) in hexadecimal format, sixteen characters in
length.
Bn
c
n
c
n
c
- (Optional) Where n
c
n
c
n
c
is the data byte count, to
allow non-printable characters (i.e., characters with
hex values less than 0x20) to be encoded.
aaa - Starting block number (000  maximum block
number). Transponder dependent.
b
- The number of retry attempts, 0-9.
c
- Lock block after writing:
0 = No Protection
1 = Write Protect
d
- Reserved. Should be 0.
ee…e
- Data to be encoded on RFID tag.
Sample 1: KtWB004000900<0x00><0x01><0x02><0x03>[CR]
Sample 1, above, programs the hex values 0x00, 0x01, 0x02,
0x03 in block zero.
Sample 2: KtWUE00700ABCDEF1234B004000510TEST[CR]
Sample 2, above, programs the data “TEST” to the tag with UID
“E00700ABCDEF1234” at block zero then write-protects block zero
(attempting to write five additional times if necessary). When
write protecting (locking) with UID, the separate lock command
will also use the addressed mode and the supplied UID.

When using addressed commands and the tag with the specified UID cannot be found, a
standard RFID read/write fault will be issued.