Specifications

Field HEX
The ^FH (Field HEX) instruction allows you to enter the hexadecimal
value for any character directly into the ^FD statement. The ^FH
instruction must precede each ^FD instruction in which it will be
used.
Within the ^FD statement, the HEX indicator must precede each
Hexadecimal value. The default HEX indicator is the underscore “_”.
The ‘a’ parameter can be added when a different HEX indicator is
needed.
This instruction can be used with any of the instructions that have
field data (i.e. ^FD, ^FV (Field Variable), and ^SN (Serialized
Data)).
Valid HEX characters are:
0123456789ABCDEFabcdef
The format for the ^FH instruction is:
^FHa
where
^FH
=
Field HEX Instruction
a = HEX Indicator
{I.V.P. = _ (underscore)}
Other Acceptable values: Any character except current
Format and Control prefix.
Example:
^FO100,100^AD^FH^FDTilde _7e used for HEX^FS
^FO100,100^AD^FH\^FDTilde \7E used for HEX^FS
Either of the above two lines will produce the following results.
218 ZPL II COMMAND REFERENCE
^F H