Intermec Janus 2050, Руководство пользователя

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39
nugget
A Command Reference
9-7
9
Command Override
Purpose: Causes the character that follows it to be treated as data. This command allows
for the use of control characters in preambles, data strings, and configuration
command strings.
From host: <DLE>
Keypad:
c P
^P is also the ASCII Data Link Exception character (DLE). ^P causes the
character that follows it to be received as data, even if it is a protocol character.
Therefore, to interpret a Command Override command from the host, the
command must be preceded by DLE.
For example, when “^P^P^M” is sent from the host, it is interpreted as
“^P^M”, where ^P is acknowledged allowing the following command (^M) to
be interpreted as data and passed on to the application. When “^P^M” is sent
from the host, it is interpreted as ^M, the display is not affected, and the
Carriage Return command is executed.
IRL command: Z“^P”
Scan: Command Override
*$P*
*<DLE>*
The JANUS 2050 uses
c
-
P
as the Command Override command; however,
the DOS printer redirection command (
c
-
P
) is also supported on the
JANUS 2050. This dual purpose may cause some conflicts.
If you have Reader Services loaded and scan the bar code label <DLE>, the first
scan is interpreted as a JANUS 2050 command. The next <DLE> entered causes
a
c
-
P
to be entered into the expanded key buffer. DOS takes this
c
-
P
and enables printer-redirection.
If no printer is connected, all subsequent entries cause an error and the
following message is displayed:
Write fault error writing device PRN
Abort, Retry?