GTCO Surface-Lit AccuTab - Users Guide - Manual (Page 49)

Surface-Lit AccuTab 49
Command Mode Basics
To enter Command Mode:
Send an ASCII CTRL-A (hex 01) character to AccuTab. When AccuTab receives the CTRL-A,
two things happen:
 Digitizing stops and new coordinates are not generated. If Command Mode is
invoked during transmission of a coordinate, that coordinate transmission will be
completed.
 AccuTab sends a “>” (hex 3E) as a prompt to the commanding device. AccuTab is
now ready to accept commands.
A command consists of two upper case ASCII letters or numbers followed by a delimiter.
The delimiter lets the AccuTab know the command is complete. There are two kinds of
delimiters:
 (carriage return, hex 0D): indicates end of current command and more
commands will follow. If the command just sent is valid, it will be carried out. The
AccuTab then sends another > prompt and awaits the next command.
 (escape, hex 1B): indicates end of current command and no more commands
will follow. If the command is valid, it will be carried out. Then AccuTab will exit
Command Mode and return to Digitizing Mode.