使用photoeyes的blocked procedure和cleared procedure,例如:9 ~/ F1 `! J* X$ L# q% i# D
begin Conveyor.Photoeyes1 blocked procedure" Q" D* D3 @$ T4 e4 z. O! E6 v. }4 S
if the load color = red then begin( {6 Q2 d% ~& E6 p0 M
travel to ........6 a, Q E1 h) u. c0 o+ |# `
end0 W' ~& d: g$ T
end4 Y/ D9 i& o; O: K% }5 z- }