使用photoeyes的blocked procedure和cleared procedure,例如:% _, b' ]% C2 [- Q
begin Conveyor.Photoeyes1 blocked procedure % M4 s+ l6 ^$ a7 u1 A( M: S, q if the load color = red then begin9 ?0 l1 N; v& R/ A0 m) a) y5 Y
travel to ........6 ^0 p6 l8 O9 e7 }4 t, k( S
end ' i5 Z% G2 S8 bend 4 j3 o: z6 X, A( b, }