Rockwell Automation 1752-L24BBBE SmartGuard 600 Controllers User Manual - Manual (Page 210)

210 Rockwell Automation Publication 1752-UM001E-EN-P - June 2014
Appendix C Logic Functions Command Reference
Exclusive NOR Instruction The output is an exclusive NOR of the input conditions.
Exclusive NOR Instruction Diagram
Exclusive NOR Instruction Truth Tables
In the truth table, 0 is off and 1 is on.
Table C.1 Truth Table for Exclusive OR Evaluation
Input 1 Input 2 Output 1
0 0 0
0 1 1
1 0 1
1 1 0
Table C.2 Truth Table for Exclusive NOR Evaluation
Input 1 Input 2 Output 1
0 0 1
0 1 0
1 0 0
1 1 1
Output 1 Input 1
Input 2