使用photoeyes的blocked procedure和cleared procedure,例如:3 b: x4 b- }9 h) r8 P
begin Conveyor.Photoeyes1 blocked procedure( x' q; b( p8 n8 w8 |1 c
if the load color = red then begin / V5 s$ f' W; Y6 _7 r7 m travel to ........ 3 e' z- C& _' Q; |- L, K end & F; e- f* L/ k2 cend( i1 B8 t$ [/ ]( x1 ]