Logical XOR
If the bits in the strings examined by XOR are different, a 1 is
placed in the corresponding position in the output bit string.
For each pair of bits examined, if only one bit is 1, XOR
places a 1 in the corresponding location in string Q.
If both bits are 0, XOR places a 0 in the corresponding
location in string Q.
Tips:
â–ª If string IN2 and output string Q begin at the same
reference, a 1 placed in string IN1 will cause the
corresponding bit in string IN2 to alternate between 0
and 1, changing state with each scan as long as input is
received.
â–ª You can program longer cycles by pulsing the input to
the function at twice the desired rate of flashing. The
input pulse should be one scan long (one-shot type coil
or self-resetting timer).
â–ª You can use XOR to quickly compare two bit strings, or
to blink a group of bits at the rate of one ON state per
two scans.
â–ª XOR is useful for transparency masks.
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