Panasonic FP-E Programming Manual page 1066

Precautions Concerning Programs
Example 2: Using the CT instruction between JP and LBL instructions
Time chart 1
Counting
operation
Time chart 2
Counting
operation
4 - 14
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R0
X0
X1
R0
X0
Final timing at
which the
previous JP
instruction was
not executed
R0
X0
Final timing at
which the
The count is incremented, because the
previous JP
count input changed from off to on after the
instruction
final timing at which the previous JP
was not
instruction was not executed.
executed
JP 1
CT 200
LBL 1
The count is not incremented, because
the final timing at which the previous JP
instruction was not executed has not
been changed, and the execution
condition X0 for the counter input has
not changed.