_VAR 功能块的实现： FUNCTION_BLOCK

_VAR FB(); FUNCTION_BLOCK

_VAR FUNCTION_BLOCK FB

.in_out; FUNCTION_BLOCK FB VAR

InvisibleIn . FUNCTION_BLOCK FB [...] '} FUNCTION_BLOCK FB_A VAR [...] function block from

Var; FUNCTION_BLOCK FB [...] type> <function block > 数据类型 DUT 功能

type | function block > <initial

持 FUNCTION_BLOCK struct 包含 [...] 了实现 FUNCTION_BLOCK 。 FUNCTION STRUCT 包含

_VAR FUNCTION_BLOCK FB METHOD

'} FUNCTION_BLOCK FB1 VAR