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4.
PRECAUTIONS WHEN DESIGNING A SCREEN
MELSEC-A
Therefore, when the part shown below is to be registered, split it into
several parts to minimize used memory capacity.
Example:
8
dots
32 dots
8 dots
i-
The memory capacity used for a part is determined in the following
expression. In this example,
464
bytes can be saved by splitting it
into two.
(Memory capacity of a part)
- -
(Number of dots on the X axis of the part)
4
x (Number of dots on the Y axis of the part)
(In the case of the example shown above)
Before splitting
After splitting
- -
Part 1)
Part
2)
(b) Delete unnecessary parts which are not to be used for monitoring.
As for the parts created by the GED, all parts are registered as
canvas data regardless of use for monitoring display and are written
to a ROM.
Memory capacity can be saved by deleting the parts that are not used
for monitoring display.
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