
Logic Functions
FC OUTPUT FC OUTPUT
0A4A OR NOT B
1 A OR B 5 A AND NOT B
2 A AND B 6 J-K LATCH
3 A XOR B 7 D LATCH
Invert output if FC = FC + 128
Expanded Logic Functions
INPUTS OUTPUT INPUTS INVERTED OUTPUT
FC A B A FC A B A
0 0 1 0 128 0 1 1
0 1 1 1 128 1 1 0
0 0 0 0 128 0 0 1
0 1 0 1 128 1 0 0
FC A B A OR B FC A B A OR B
1 0 1 1 129 0 1 0
1 1 1 1 129 1 1 0
1 0 0 0 129 0 0 1
1 1 0 1 129 1 0 0
FC A B A AND B FC A B A AND B
2 0 1 0 130 0 1 1
2 1 1 1 130 1 1 0
2 0 0 0 130 0 0 1
2 1 0 0 130 1 0 1
FC A B A XOR B FC A B A XOR B
3 0 1 1 131 0 1 0
3 1 1 0 131 1 1 1
3 0 0 0 131 0 0 1
3 1 0 1 131 1 0 0
FC A B A OR NOT B FC A B A OR NOT B
4 0 1 0 132 0 1 1
4 1 1 1 132 1 1 0
4 0 0 1 132 0 0 0
4 1 0 1 132 1 0 0
FC A B A AND NOT B FC A B A AND NOT B
5 0 1 0 133 0 1 1
5 1 1 0 133 1 1 1
5 0 0 0 133 0 0 1
5 1 0 1 133 1 0 0
FC A B J–K LATCH FC A B J–K LATCH
6 0 1 0 134 0 1 1
6 1 1 opposite last value 134 1 1 opposite last value
6 0 0 unchanged 134 0 0 unchanged
6 1 0 1 134 1 0 0
FC A B D LATCH FC A B D LATCH
7 0 1 0 135 0 1 1
7 1 1 1 135 1 1 0
7 0 0 unchanged 135 0 0 unchanged
7 1 0 unchanged 135 1 0 unchanged
Unchanged
means the value from the last execution is used.
Opposite last value
means the opposite of the value from the last
execution is used.
FCS 53MC5000 Flexible Control Strategies
2-34
LOGC-DE
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