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4.
PRECAUTIONS WHEN DESIGNING A SCREEN
MELSEC-A
4.9.2
Limitation of displaying part drawings
(1)
Do not display a part drawing over the data displayed on the monitor
screen by monitoring condition setting. If a display is overlapped, the
part drawing becomes indefinite.
Overlapped.
@
. . . . . . . . . . . .
. . . .
Range
Data displayed when monitoring
Not overlapped.
conditions are satisfied
(2) Do not specify the coordinates i n which a whole part cannot be dis-
played. If the coordinates in which a whole part cannot be displayed are
specified, the part is not displayed.
Reference point
coordinates
Monitor screen
p+-
Displayed.
. . . . . . .
(3) Set the X coordinate of the reference point where a part is displayed to
avalue obtained by multiplying
4
with an integer. When setX coordinates
are not multiplication by integer of
4,
it is compensated to the last coordinates
of multiplication by integer of 4. (Value on the lefi)
,
: -
Not displayed.
. . . . . . . .
Compensation coordinates (1 00 and 20)
Specified coordinates
(1
03 and 20)
(4)
Set the size in the direction of the X axis of a part at the dot of
multiplication of an integer by 4. When the size of the X axis of parts is
not the dot of multiplication by integer of
4,
the range that parts are
displayed is compensated to the dot of multiplication by integer of
4.
Therefore, when "without background" is set, a compensated shadow (black) is
displayed on the right side of a displayed part. The Operating Manual explains
a method of drawing parts so that the above display trouble does not occur.
13 dots
1 -
4
1 -
The width is spread 3 dots
Compensation
Shadow at the time of setting
"without background"
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