使用photoeyes的blocked procedure和cleared procedure,例如: ( q/ b1 l; T) N4 Mbegin Conveyor.Photoeyes1 blocked procedure: k9 A+ p, Q9 N2 c- G: `. {$ L
if the load color = red then begin. b5 R! u# F& D. {" G7 T- J
travel to ........ % U G! u0 u0 M6 z6 x# q# E end 0 f \$ }. d2 ]- V" ]4 s ?end# T3 B& x' J3 U! u