使用photoeyes的blocked procedure和cleared procedure,例如:; [( q1 G* e+ r2 }
begin Conveyor.Photoeyes1 blocked procedure% G6 g, |/ ~6 E- g; Z( W
if the load color = red then begin 3 a" ]4 i, v& k' d travel to ........ % k. n/ G5 D% X, |- W3 f1 p8 i, \ end! j6 r9 A$ V6 Q' c" ]" e
end & Z; C6 P: N( r K8 r