GTCO Summagrid IV - Users Guide Part 3 - Manual (Page 21)

Summagrid IV 21
Character Definition
T
M
P
X
,
Y
C
Tablet status character
Mode status character
R = Run U = Line P = Point
T = Track I = Increment
Pen (cursor) status
A digit of the X coordinate, where each digit is an ASCII character, 0
through 9
Delimiter character. The default is an ASCII comma.
A digit of the Y coordinate, where each digit is an ASCII comma.
Cursor flag character, identifying the transducer buttons being
pressed. The possible combinations are listed in the table below. U =
no flags depressed.