Specifications

319
RFID Commands
^WT
9/15/06 ZPL II Programming Guide 45541L-004 Rev. A
^WT
Write (Encode) Tag
Description Use this command to encode the current RFID tag. Check the amount of data
memory available for the tag that you will be using. If you send more data than the memory
can hold, the printer truncates the data.
Format ^WTb,r,m,w,f,v
This table identifies the parameters for this format.
Note • The ^WT command is provided only for backward-compatibility with label formats
that were developed for older Zebra RFID printers. See Table 13 on page 287 for the list of
printers and firmware with which you should not use this command.
Parameters Details
b = block number
Specifies the block number to encode. This parameter is tag-dependent.
• For most tags, use block 0.
• For EPC Class 0 Plus, block 0 is EPC data, and block 1 is user data.
• For the R4Mplus, this parameter does not apply to printers with firmware
version SP902X. With other versions of firmware in this printer, you can
encode 12 bytes (96 bits) to block 0, but you can encode only the first byte
of block 1.
Accepted values: 0 to n, where n is the maximum number of blocks for the tag.
Default value: 0
r = number of retries
Changes the number of times that the printer attempts to encode a particular
block of a single RFID tag. (Same function as the
^RR command.)
Accepted values: 0 to 10
Default value: 0
m =motion
Enables or disables RFID motion. (Same function as the
^RM command.)
Accepted values:
0 = Feed label after writing
1 = No feed after writing (other ZPL may cause a feed)
Default value:
0
w
=write protect
Accepted values:
0 = Not write protected
1 = Write protected
Default value: 0
f = data format
Accepted values:
0 = ASCII
1 = Hexadecimal
Default value: 0