Panasonic SC-HG1 Series Reference Manual page 171

(e) P+SUNX-SC-HG1_ExecuteTeaching_R (execute teaching)
When M0 is turned ON, this FB executes ±0.1mm 1-point teaching on the first controller connected to the SC-HG1-C with its
station number set to 1.
In the following example, M3 is turned ON when M103 is turned ON; you can, however, execute teaching at any time by
adding an contact for external input or ladder operation behind the M103 contact.
Be sure to provide the M103 (Teaching Wait Flag) to turn ON M3
(Input signal) because otherwise an FB error may occur.
Add a contact for external input or ladder operation, as needed, to turn
ON M3 (Input signal) at your desired time.
SC-HG1 Series FB Library Reference Manual for Mitsubishi MELSEC iQ-R series Sequencer
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WUME-SCHG1IQRFB-1