使用photoeyes的blocked procedure和cleared procedure,例如:- G Z4 {: q. T% C8 ~
begin Conveyor.Photoeyes1 blocked procedure Z0 v$ L6 K7 ]6 O; `4 ]& N
if the load color = red then begin+ _: Z; E1 W3 A" @) z
travel to ........ % j1 f8 `% Z- ] end , D2 q7 j4 O/ L7 |' yend% O: c `" a( d& P* B, V