使用photoeyes的blocked procedure和cleared procedure,例如:# c. N5 }4 k! f' `& @7 O* a
begin Conveyor.Photoeyes1 blocked procedure " p& X7 {: Q' X, y* L if the load color = red then begin0 _8 E4 W% f; a( H: d! ~, |
travel to ......../ T$ K5 S1 ?5 U
end 0 k, i2 [( ~3 @. Z- L. [8 |* Oend , Y6 _8 @+ B0 y1 o