He first attempted to draw the GRAFCET for a "mixer" and a "priority cart" without looking at the answers.
✅ In the PDF: Complete transition conditions & associated actions table. exercices corrig%C3%A9s grafcet pdf
Show not just the diagram, but also the step equations for a PLC: Step 2 = (Step 1 AND Open_button) OR (Step 2 AND NOT Top_limit) . He first attempted to draw the GRAFCET for