使用photoeyes的blocked procedure和cleared procedure,例如: / O. o8 D1 o7 n& |: A) t1 Sbegin Conveyor.Photoeyes1 blocked procedure4 C$ r* E1 h g- _2 l6 O- W7 J
if the load color = red then begin , a" {# [- x1 e( Y1 e5 U travel to ........2 U4 W1 X) F$ l0 M7 f0 e9 A/ G
end# D' _4 w8 q, q6 _& o' ~4 A
end 8 K$ `7 h1 W2 R