Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 2081

A
(73) Adjust the execution cycle to 0.1s. Clear the output values in S.IN, S.PHPL, S.PID, and S.OUT1 to 0.
Clear the loop tag to 0. Set the default value of the loop tag.
APPX
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Appendix 6 Process Control Program Examples