使用photoeyes的blocked procedure和cleared procedure,例如:; l' n/ D3 U( B7 U
begin Conveyor.Photoeyes1 blocked procedure- T* d% z: j/ f [6 k, V# m: C
if the load color = red then begin ; N: V; G4 _3 l4 U9 i( w travel to ........ - F2 K) W3 |( `7 ]. `; i: t end - Y( g$ [# x m$ N, i/ \* Pend( t8 h7 o7 R4 A1 |! a1 x. P2 z