使用photoeyes的blocked procedure和cleared procedure,例如: / S0 a& M, c8 Q' U/ Q. ~begin Conveyor.Photoeyes1 blocked procedure! q+ x/ ^5 B# I
if the load color = red then begin# ~4 U# Q4 z+ h1 f! x
travel to ........ * m- a! x4 u& \( L2 N0 o3 b1 ~; y end7 C' i& o$ q3 ]$ _. ?: g
end* T/ \4 P X$ m1 M: g' h5 o, i