Dummy : INT; xDummy : BOOL [...] 2 : BOOL VAR_INPUT iInput2:INT; END

InB : INT; {attribute [...] InvisibleIn : BOOL; xInit: BOOL [...] _OUTPUT iOutB : INT; END

可以由指针变量或 REFERENCE TO 多变的。 句法 [...] _pt: POINTER TO FB_B; var_ref: REFERENCE TO FB_C; END

_OUTPUT iCnt : INT; END [...] _DoIt : BOOL iCnt := -1 [...] _DoAlso : BOOL METH

Count'}; ivar:INT; bvar:BOOL [...] _1 : STRUCT a:INT; b:BOOL [...] '} FUNCTION fun1 : INT VAR

PROGRAM PLC_PRG VAR pInt : POINTER TO INT; dw [...] #1; pInt := dw

: INT; pt : POINTER TO INT; END

: INT; pt: POINTER TO INT; END_VAR pt

_PRG VAR i : INT; pt : POINTER TO INT; END

Var2 : BOOL; iVar1 : INT; i [...] InA : INT; {attribute [...] InvisibleIn : BOOL; xInit: BOOL