(*泄壓閥與液位控制*)
if XYMo3=1  and  P221_to_HMI>Pxy3  then
   XYDCFQT3_m:=1;
else if XYMo3=1  and  P221_to_HMI<Pxy3 and LV1_to_HMI<LVMIN  then
   XYDCFQT3_m:=1;
end_IF;
END_IF;
if XYMo3=1  and  P221_to_HMI<Pxy3-Pxy  then
   XYDCFQT3_m:=0;
ELSE IF  XYMo3=1  and  P221_to_HMI<Pxy3 and LV1_to_HMI>LVMAX  then
   XYDCFQT3_m:=0;
END_IF;
end_if;

為啥要兩個endif      vb的話不行