使用photoeyes的blocked procedure和cleared procedure,例如:4 g" U8 s5 ?! O' Z
begin Conveyor.Photoeyes1 blocked procedure - [6 o0 l o& U0 v% N1 L# a if the load color = red then begin8 u/ T9 E1 |% Z) G. l* i' E
travel to ........6 Z" x4 ]# R, j# N j7 D* W& [' m( R
end. g# o+ l( z6 ^! p: P
end . d" v. h- c' @( {4 C6 C4 \