Table of Contents
Advertisement
6. PRECAUTIONS WHEN DESIGNING A SCREEN
MELSEC-A
(5)
Character size and magnification when displaying numeric data
When displaying numeric data in the numeric display or block data
display, if setting is done using one (*) of the combinations listed below,
the display processing time can be reduced.
Display size (number of dots): X axis x Y axis
~
xl
x2
x4
x8
Character Sizes
16 point
8
x
16
*
16
x
32
*
32
x 64""
64 x 126
8 point
8x8
16 x 16
32
x
32
64 x 64
(6)
Displaying a blank character string in reverse to show a rectangle
When the figure to be displayed is a rectangle, if the size is n x a 16-point
character, a blank character string can be used. The display time is
shorter than for a figure display.
Example of a rectangle made by displaying a character string in
reverse.
•
_I
32 dots
64 dots
(x2 Magnification)
If the size of a figure to be displayed is different from that given above,
use a level display (0 or 100%) to designate the size.
6.9.3
Make the minimum number of monitor points on a screen
If a lot of monitoring number of points are registered in a monitor screen, the
monitoring time is slowed.
Constitute the screen in which there are few monitoring number of points per
screen by splitting the monitor screen.
•
For example, the figures below show the screen design that monitors the
whole system during normal operation state and the monitoring screen that
zooms a problem location when an error occurs.
Line Monitor
6-44
Mel
Operation Monitor
Advertisement
Table of Contents
