Logic operation function, And function, Or function – IDEC FS1A Controller User Manual

Page 137

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Logic operation function

AND function

As shown in Fig. 5-16 and 5-17, this function reflects the results of a logic (AND) function
processing for multiple inputs (I

n

) in the function output (O

n

).




Fig. 5-16 AND function circuit

I

1

I

2

I

n

O

n

ON

OFF

ON

OFF

ON

OFF

ON

OFF

Fig. 5-17 Operation timing of the AND function

OR function

As shown in Fig. 5-18 and 5-19, this function reflects the results of a logic (OR) function
processing for multiple inputs (I

n

) in the function output (O

n

).




Fig. 5-18 OR function circuit

I

1

I

2

I

n

O

n

ON

OFF

ON

OFF

ON

OFF

ON

OFF

Fig. 5-19 Operation timing of the OR function

I

1

I

2

I

n

O

I

1

I

2

I

n

O

...

...

...

...

&

>=1

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