使用photoeyes的blocked procedure和cleared procedure,例如: % Y& p: S% f1 |' ?4 Lbegin Conveyor.Photoeyes1 blocked procedure8 Y% g. {5 i7 A# N: k* ~% N0 q, e
if the load color = red then begin 0 B3 o- X# C4 f4 b5 r7 L travel to ........ ( _3 Z8 |- q, p t I2 A; Q- ]8 | end + P# k, R9 c" J1 w- O s9 m! bend ! f( [! L4 \' o