Owner`s manual

Low-Level Terminal Command Script Reference
The basic format of a message that is transmitted from Host to Terminal is fairly simple:
Byte position Function Possible values
1 Unused 0 (zero)
2 Command(s) (See Below)
Last Termination of
message
EOT (ASCII 4)
The first byte, RF Terminal ID, is unused and included for backwards compatibility, should you want to
port existing RF Terminal applications to the new 7802 system. Leave this set to “0” (zero).
The reason that Terminal ID is not used has to do with the way the server works. You can never send
anything to a Terminal unless the Terminal requests it, and the Server guarantees a direct one-to-one query-
response integrity.
The Command(s) section of the message always starts with the second byte and can consist of one or more
commands - including data to be displayed, batch program file upload, or voice messages to be broadcast.
The last byte is always ASCII 4 (EOT) to terminate the message.
Here is a listing of valid commands and examples:
Command
characters
Command function
@Bn Make Terminal beep n (1-9) times
@C0 Clears the entire screen (4, 6 or 15 lines) on Terminal.
@C1 Clears line 1 on Terminal
@C2 Clears line 2 on Terminal
@C3 Clears line 3 on Terminal
@C4 Clears line 4 on Terminal
@C5 Clears line 5 on Terminal
@C7-@CF Clears lines 7 through 15 on display.
@CX Clears screen (same as @C0) and sets SMALL font, 15 lines
with 26 characters per line
@CY Clears screen (same as @C0) and sets MEDIUM font, 10 lines
with 20 characters per line
@CZ Clears screen (same as @C0) and sets LARGE font, 7 lines
with 13 characters per line
@Dn Displays date and time on line n in US (mm/dd/yy, hh:mm:ss) or
Euro (dd/mm/yy, hh:mm:ss) format on Terminal
@Vnn Play voice message #nn (01-99) on Terminal
@Sdataxxxx Output dataxxxxxxx to serial port on Terminal -max 231 chars
@Pdataxxxx Send Batch Program
@A Acknowledge Batch Data
NOTE: The 15-line terminal defaults to small font on Sign-In.
Color Display Programming
New commands have been added to take advantage of the larger color display on the LT7001. You now have
the ability to define the color and font size on a line by line basis.
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