使用photoeyes的blocked procedure和cleared procedure,例如: 8 w9 n, X/ Z6 i a; mbegin Conveyor.Photoeyes1 blocked procedure * m/ o' ], c! V. x if the load color = red then begin % R; }! C8 \% |* l travel to ........ ' \& O# _! S9 O% ^ end 9 x/ {/ _' r/ }end % T, r2 N9 V4 t" I: |, p