Printronix SL5000r MP - Manual (Page 49)

VERIFY
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always S type. The DFn format could be
either B, D, or H. Due to the possible
conversion the outgoing datastream
could be longer than the incoming one.
The maximum length for the outgoing
data is 512 bytes. If the format request
will result in a datastream exceeding the
maximum length, an error would be
reported.
ASCIIheader
A mandatory parameter to specify an
ASCII string of characters, which is
followed by the RFID data, to be sent by
the printer to the host.
(D) Delimiter designating the start and end of
a character string. Replace (D) with any
printable character, except the SFCC
and the slash character (/). The string
could be empty, i.e. there are not
headers preceeding the field data.
ASCIITrailer
Optional parameter to append an ASCII
string of characters to the RFID data.
You can insert the LF/CR characters \r\n
into the string.
NOTE: 1. The DFn field must be defined previously in the CREATE
mode before it can be specified in the VERIFY command
otherwise it will be considered as a syntax error and the
VERIFY command will abort.
2. All RFID Read/Write commands are executed first in the
order they appear in CREATE mode, followed by Alpha
and Barcode commands, and finally VERIFY commands.
The VERIFY commands are always executed last although
they may appear before other commands in the CREATE
mode. The reason for this is to make sure the data are sent
back to the host only if other commands are completed and
the form is not aborted.
3. If the data comes from a DFn field, the DFn format is the
original format before any conversion. If the VERIFY