使用photoeyes的blocked procedure和cleared procedure,例如: p- r' q. h+ y
begin Conveyor.Photoeyes1 blocked procedure* o3 @- t; q1 q: V
if the load color = red then begin( o7 o" v0 ?" o; I, @$ a- h
travel to ........6 Y% }. y7 x7 a) }, p0 G, }0 ^
end7 J6 O' q2 G8 E* _; f) g
end' y9 }* |' L9 _