Specifications

specified in the ^BD instruction, the height of symbol value
will be divided by the required rows/columns, rounded,
limited to a minimum value of one, and used as the dimen-
sions of individual symbol elements.
Field Data (^FD) for Data Matrix
Quality “000”-“140”
The “\&” and “||” can be used to insert carriage return/line feed
and back slash as with PDF417. Other characters in the control
character range can only be inserted by using ^FH. Field data is
limited to 596 characters for quality “0” to “140.” Excess field
data will cause no symbol to be printed; if ^CVY is on,
INVALID-L will be printed. The field data must correspond to a
user-specified format ID or no symbol will be printed; if ^CVY
is on, INVALID-C will be printed.
The maximum field sizes for quality “0” to “140” symbols are
shown in the following table:
172 ZPL II COMMAND REFERENCE