使用photoeyes的blocked procedure和cleared procedure,例如:8 O0 l" Z; U6 y u6 R5 Z
begin Conveyor.Photoeyes1 blocked procedure 0 p" o$ a: G; t3 I0 @ if the load color = red then begin6 x, j( u/ v( {
travel to ........ ) D" r& {3 k6 r3 K end 8 p# r0 {2 N. y, J' V9 kend ' a2 T! v9 h: i6 \% E e