Panasonic FP Series Programming Manual page 533

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Bitwise Boolean instructions

The functions a bit-wise exclusive OR operation on two 32-bit data items at inputs s1 and s2. The

result of the function is returned at output d.

Using this instruction you can check how many bits in the two 32-bit data items are different, for

example. At each position in which the bits at inputs s1 and s2 are different, a 1 is added in the

This instruction also exists as a P instruction (for FP2/2SH, FP3/5, FP10/10SH PLC types), which

is only executed at the rising edge of the EN trigger. Select [Insert P instruction] from the

"Instructions" pane if you require a P instruction. To facilitate reuse, the instruction then appears

under "Recently used" in the pop-up menu. Press <Ctrl>+<Shift>+<v> within the programming

area to open the list of recently used elements.

Availability of F217_DXOR (see page 1323)

The variables s1, s2 and d have to be of the same data type.

32-bit data XOR

32-bit equivalent constant or 32-bit area

32-bit area for storing XOR operation result

for an instant

 the result calculated (output d) is 0.

dec. or hex.