Outline Of Functions; Nt20 Screen - Omron NT20 User Manual

Outline of Functions

4-2

Outline of Functions

4-2-1

NT20 Screen

Composition of the Screen
Screen Management
Special Screen Number
136
This section gives the outline of the screen which is the basis of all NT20 func-
tions.
For specific operation procedure such as screen switching, refer to 5-1-4
Switching the Screen Display (page 172).
The NT20 screen is composed of horizontal 256 dots x vertical 128 dots.
Each dot is set by the combination of the X (horizontal) and Y (vertical) coordi-
nates. The origin of coordinates (0, 0) is set at the top left corner of the
screen.
0
X coordinate (horizontal)
0
Y coordinate
(vertical)
127
The screens displayed on the NT20 are managed by the screen numbers.
When using the NT20, up to 495 screens can be created and screen numbers
in the ranges 1 to 250 and 256 to 500 can be used (numbers 251 to 255 are
reserved for system use).
The display screens can be switched or the start-up screen can be set by des-
ignating the screen number from the Host.
Screen number "0" is reserved for the system as the no-display screen. Select
this to display nothing on the NT20 screen.
Coordinates
(x, y)
Section 4-2
255
255, 127