Siemens Simatic S7 Series Manual page 38

OR Operation. In.this.example,.an.OR operation.is.used.in.network...In.the.
following.example,.if.either.input.I0.2.(input.3).or.(O.in.the.
statement.list).input.I0.3.(input.4),.or.both.are.true,.then.output.
Q0..(output.2).is.true..
The.following.truth.table.represents.the.state.of.the.output.for.
each.combination.of.input.states.
I0.2 I0.3 Q0 .1
0 0 0
0 1 1
1 0 1
1 1 1
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