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

OVS_REAL : INT; // Optimal [...] OVS_LREAL : INT; // Optimal [...] _DIV VAR iScalar : INT

: INT; pt : POINTER TO INT; END

: INT; pt: POINTER TO INT; END_VAR pt

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

, SINT , USINT , INT , UINT , DINT , LINT

TO INT; END_VAR I [...] PLC_PRG VAR i : INT

; END_VAR IF INT_TO [...] Cond1:INT := INT#1; iCond2:INT := INT#2; x

_on_call'} pInt : POINTER TO INT := 0 [...] _on_call'} iVal : INT := 0

: INT; pi : POINTER TO INT; END_VAR i