使用photoeyes的blocked procedure和cleared procedure,例如:0 r# X) X a) G
begin Conveyor.Photoeyes1 blocked procedure A3 ?- _" C; ]* n& F
if the load color = red then begin 1 i8 ?% z! c# [5 _% E; | travel to ........% [5 u0 U. n! r. O; U, ?4 Y
end 9 l; [. `/ X: Q; I. Wend8 O( ^/ b- r0 c/ H