EXTENDS FB VAR END

ITF EXTENDS

_BLOCK FB EXTENDS FB2 VAR

B EXTENDS fbA VAR_INPUT i [...] B EXTENDS fbA VAR_INPUT i

2 EXTENDS XY METHOD METH

2 EXTENDS XY METHOD METH

_BLOCK FB_1 EXTENDS FB

_BLOCK POU_Ex EXTENDS POU [...] _BLOCK POU_Ex 和 EXTENDS

name> EXTENDS <basis [...] _PENTAGON EXTENDS S

进行面向对象编程并使用继承时（ EXTENDS 关键字）的POU，您可