EXTENDS POU VAR END

EXTENDS FB VAR END

（ IMPLEMENTS ) 泛化 ( EXTENDS

ITF EXTENDS

_BLOCK FB EXTENDS FB2 VAR

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

： generalization EXTENDS 本节内容如下 :

2 EXTENDS XY METHOD METH

2 EXTENDS XY METHOD METH

GroundTask EXTENDS CBML [...] GroundTask EXTENDS __SYSTEM [...] ActionProvider EXTENDS __SYSTEM