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Automating Manufacturing Systems - Process Control and ...

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plc boolean - 6.30<br />

9.<br />

a)<br />

( A+<br />

B) ⋅ ( A+<br />

B)<br />

= ( AB) ( AB) = 0<br />

b)<br />

ABCD + ABCD + ABCD + ABCD = BCD + ABD = BCD ( + AD)<br />

10. C<br />

11.<br />

X = B⋅<br />

( A ⋅ C + C)<br />

12.<br />

Y = ( ABCD + ABCD + ABCD + ABCD) + D<br />

Y = ( ABCD + ABCD + ABCD + ABCD)D<br />

Y = ( 0 + ABCD + 0 + 0)D<br />

Y<br />

=<br />

ABCD<br />

A B C D<br />

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