使用photoeyes的blocked procedure和cleared procedure,例如: , U2 v# `9 Q: z5 t8 [) K: xbegin Conveyor.Photoeyes1 blocked procedure / W& v7 g }2 G( y ~3 i9 a if the load color = red then begin 9 h( j" G+ l0 ] travel to ........ 4 e/ p" X! z0 p! b end3 Q4 ~1 X3 s: Q1 E
end * o: H. d" R7 u5 M" v0 X