Intermec Transaction Manager 9560, Руководство пользователя

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9560 Transaction Manager User’s Manual
8-4
Entering Data Entry Commands
You enter data commands in three ways:
• Typing commands or control codes from a 1700 keyboard or terminal. To
enter a command as data, precede the command with the DLE character,
Ctrl P
.
• Downloading data from the host computer. The host system may send
commands one at a time or combine up to 254 characters in a command
string. Use the host communications protocol currently in effect to send
commands.
• Scanning bar code labels in this manual or labels you make yourself. You
can combine several Data Entry commands into a single label of up to 48
characters.
The reader transmits the data according to the current configuration parameter
settings. For more information on configuring the reader, see Chapter 6,
“Configuring the 9560.”
Regardless of how you enter the Data Entry commands, several general rules
apply:
• The reader executes concatenated commands in the order that they appear
in the string. If the reader finds an invalid command in the string, it sounds
three low beeps and ignores all subsequent commands.
• A string may contain preambles, postambles, commands, and data. The
order is: Preamble A, Preamble B, commands, data, Postamble.
• When the reader is running IRL, the Data Entry commands operate
differently . For example, the Enter command returns from an IRL input
statement rather than transmitting data to the host. For more information,
refer to the IRL Programming Reference Manual.
• Some Data Entry commands have equivalent Configuration commands;
entering a Data Entry command overrides the Configuration command for
the current operation, but does not change the configuration setting.
For example, if the reader is configured for Computer Response Required
mode (CRRM enabled) and the reader receives an Exit Computer Response
Required command, then the reader exits Computer Response Required
mode. Prompting Configuration still displays Computer Response
Required, even if the power is turned off or a Reset label is scanned.