User`s guide
Glossary CARROLL TOUCH
 GL-2 Touch System Diagnostics (CTDIAG) User’s Guide
Continuous Mode A touch reporting type under the SFP that reports touch 
coordinates at intervals from the time a stylus enters the screen 
until it exits, even if the stylus is unmoving. Add Exit Point can be 
added as a modifier.
controller The interface between the touch system and the computer. The 
controller may be software-based or hardware-based, or may use 
the computer’s serial (RS-232) port. See hardware-based 
controller, serial (RS-232) controller, and software-based 
controller.
coordinate origin corner The 0, 0 origin of the video coordinate system. This is usually in 
the upper left corner of the display.
coordinate reporting One of two methods that determines the form used to send data 
from the touch system to the host. The touch system reports x, y 
coordinate values that identify the touch location. The x and y 
values are reported as logical coordinates. See also scan 
reporting.
coordinates The two-dimensional mathematical representation of a point. For 
example, 29, 38 represents a value of 29 on the x-axis and a value 
of 38 on the y-axis. 
CTDIAG.CFG file The CTDIAG configuration file used during autodetection.
Enter Point Mode A touch reporting type under the SFP that reports only the 
coordinates at which a stylus enters the touch screen. Add Exit 
Point reporting can be added as a modifier. 
Exit Point Mode A touch reporting type under the SFP that reports only the 
coordinates at which the stylus exits the touch screen. Add Exit 
Point reporting can be added as a modifier; if you do this, 
however, the touch system reports the coordinates at which the 
stylus exits the screen twice, first as a normal Coordinate Report 
and then as an Add Exit Point Coordinate Report.
Formatted Mode A mode used in the receive window of the Debug screen. Each 
command and associated report appear on a separate line for easier 
viewing. 
frame size A general term for either logical or physical frame size. See 
logical frame size, physical frame size.
guided acoustic wave 
touch technology
A technology used in touch screens, based upon transmitting 
acoustic waves through a glass overlay placed over the display 
surface. 










