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Basic Hardware and Function
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8. Special I/O Functions
Sample program
Main program
(H3045)
I/O interrupt program #3
Interrupt program A
I/O interrupt program #4
Interrupt program B
In this example, 12357 (H3045) is set in SW16. As a result, the interrupt input function (2
points, rising for both) is selected.
When X002 is changed from OFF to ON, the interrupt program A is executed. When
X003 is changed from OFF to ON, the interrupt program B is executed.
NOTE
Even if the Direct I/O instruction is used in the interrupt program, the
corresponding input state (X002 or X003) cannot be confirmed. Because the
interrupt is generated before internal updating of the input states.
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