GTCO CR 1212 - Users Guide - Manual (Page 6)

CR 1212 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 CR 1212’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 B.
The tablet accepts commands from the host at any rate, except as follows:
 After turning on the tablet, wait approximately 300 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.
 Definable Resolution (Set X, Y Scale): After issuing the Definable Resolution
command, wait for at least 0.5 milliseconds before issuing another command to the
tablet.
Section D: Alternative Configurations
CR 1212 comes in three operational configurations: Bit Pad One, Bit Pad Two and CR. The
standard configuration is Bit Pad One. The other configurations are special orders.