Datamax E-Class Mark II Programmer's Manual page 310

UHF Interface
This interface allows the Host Application to perform specific operations pertaining to
UHF-type tags. Since these commands override the printer's database by interfacing
directly to the tag module, knowledge of UHF protocols and their operation is required.
See the <STX>KuR and <STX>KuW commands for details.
Label Formatting Mode
Label Formatting Mode utilizes the current printer configuration to process all reading,
writing, and exception processing for each tag printed. (For exception processing and fault
handling; see the <STX>KcFH command.) The specification for RFID programming is
contained in the data fields of the DPL label format, which instructs the printer to write and
read data. Two Label Formatting Modes for RFID are available. While each supports auto
increment and decrement commands for numeric (+/-), alphanumeric (>/<), or
hexadecimal ((/)) data, they differ when a byte count specifier is added. Both RFID Label
Formatting commands are detailed below.

Up to six RFID operations per label are allowed.
Wx / W1x: RFID
Syntax for RFID (spaces added for readability):
a bbb c d eee ffff gggg jj...j
Where:
298
Appendix S – RFID Overview
Class Series 2 Programmer's Manual