User’s Manual xLogic SuperRelay
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3.2.7 XOR
The XOR (exclusive OR) output is 1 if the signal status of the inputs is different.
A block input that is not used (x) is assigned: x = 0.
Logic table of the XOR function:
Input 1 Input 2 Output
0 0 0
0 1 1
1 0 1
1 1 0
3.2.8 NOT
The output is 1 if the input is 0. The NOT block inverts the input status.
Advantage of the NOT, for example: xLogic no longer requires break contacts. You
simply use a make contact and convert it into a break contact with the help of the NOT
function.
Logic table of the NOT function:
Input 1 Output
0 1
1 0
3.3 Basics on special functions
Because of their different input designation, you can see right away that there is a
difference between the special functions and basic functions. SFs contain timer functions,