Answer Posted / sauri

PB
|------II-----(osr)------<b3:0/0>---|
| |
| b3:0/0 M2 |
|-----II------I/I--------<M2>-------|
| b3:0/0 M2 |
|-----I/I-----II----|

b3:0/0=binary bit;
PB=push button;
osr=one shot rising;
II=NO push button;
I/I=NC push button;
M2=motor for start and stop;

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