使用photoeyes的blocked procedure和cleared procedure,例如:: _# | R7 J1 L
begin Conveyor.Photoeyes1 blocked procedure ) S& Q; H8 h6 F3 ^, Q; @7 ? if the load color = red then begin 1 T* r& Q* O3 A travel to ........1 E- o# N5 f0 j" C
end $ V% F+ e$ G- n& B4 {0 a ]! A M" Tend # \ d2 s5 F. B& O6 c