GTCO MM II 1201 - Users Guide - Manual (Page 6)

MM II 6
Reports are in absolute or relative coordinates. Absolute coordinates are coordinates
measured from the tablet’s origin (0, 0). Relative coordinates are measured relative to the
last report location. In the illustration above, point B is issued after point A. Therefore, in
relative coordinates, point B is measured relative to point A.
The tablet defaults to absolute coordinates. However, you can change to relative
coordinates with the Relative Coordinates command, described in Chapter 4.
Section C – Commands: Controlling the Tablet’s Operation
Control the MM II’s operating characteristics, functions and diagnostics with commands
from the host. This book represents the commands in ASCII. For convenience, an ASCII
conversion chart appears in Appendix C.
The tablet accepts commands from the host at any rate, except as follows:
 After turning on the tablet or issue the Reset command, wait approximately ten
milliseconds before sending commands.
 Commands that require a tablet response: If you send a command to the tablet that
requires a response, the tablet does so within two milliseconds. Wait until the host
receives the entire response before issuing another command to the tablet.
Section D: Alternative Configurations
The tablet is already set up to operate with a certain:
 Baud rate: 9600 or Autobaud
 Report format: binary or ASCII BCD
 Parity: odd parity or no parity
The standard setup is 9600 baud, binary report format and odd parity. Your unit may be
different.
Change the setup by altering the hardware or with commands from the host. Appendix B
tells you how to change the hardware. Chapter 4 describes the commands. Read the
passages and select the method most appropriate for the situation. Note that the tablet
defaults to the hardware setup each time you turn on the tablet or send the reset
command.