#10=3 (Sensor Nr)
#11=1 (Sensor Normally opened)

M88 P#10 L#11 (Smooth stop if sensor activated)
G91 G0 Z-30 F500 (Fast probe screen surface)
G04 P0.1
G91 G0 Z2 F500(Rebound 2mm)
M89 P#10 L#11 (Stop if sensor activated)
G91 G0 Z-30 F50 (Slow probe screen surface)
G04 P0.1 (Pause)
M85 (Save the coordinates in the log)
G90