_METHOD FUNCTION_BLOCK FB [...] 1 := TRUE; END_METHOD END_FUNCTION_BLOCK FUNCTION_BLOCK FB

的范围： FUNCTION FUNCTION_BLOCK [...] END_VAR FUNCTION_BLOCK [...] ; END_VAR FUNCTION_BLOCK

它执行下面的指令 __FINALLY . FUNCTION [...] , RTSEXCPT_IO_CONFIG_ERROR [...] , RTSEXCPT_FIELDBUS_ERROR

_VAR POU(); FUNCTION POU

_A1 FUNCTION_BLOCK fb [...] _A; 脸书 fb_A2 FUNCTION_BLOCK [...] ; str_1 := 'Function

(); FUNCTION POU IMPLEMENTS

_VAR FUN(); FUNCTION FUN

_1(); FUNCTION POU_1 VAR

_VAR Test().2; FUNCTION

); FUNCTION Test : INT VAR