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plc boolean - 6.16<br />

D1<br />

D2<br />

D3<br />

multiplexer<br />

X<br />

A1 A2 X<br />

0<br />

0<br />

1<br />

1<br />

0<br />

1<br />

0<br />

1<br />

X=D1<br />

X=D2<br />

X=D3<br />

X=D4<br />

D4<br />

A1<br />

A2<br />

Figure 6.13<br />

A Multiplexer<br />

Ladder logic form the multiplexer can be seen in Figure 6.14.<br />

A1 A2 D1 X<br />

A1 A2 D2<br />

A1 A2 D3<br />

A1 A2 D4<br />

Figure 6.14<br />

A Multiplexer in Ladder Logic

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