Number: POINTER TO INT; i [...] 数据类型：POINTER TO [...] name>: POINTER TO

TO INT; pri [...] 明中， REFERENCE TO INT REF [...] TO INT := value

Address1: POINTER TO INT; iVar1 : INT := 5; lw [...] | LWORD | POINTER TO

| BYTE | DATE | DATE [...] | INT | LDATE | LDATE

| ULINT | BYTE | WORD [...] 没有显式声明基本数据类型，则 INT 自动 [...] type is INT, default

Counter : ARRAY[0..9] OF INT [...] Counter : ARRAY[0..9] OF INT [...] INT; END_VAR 第 1 维

_DT BYTE_TO_DWORD BYTE_TO_INT [...] _BOOL INT_TO_BYTE INT_TO [...] Return := INT_TO_BYTE(127

_BOOL DATE_TO_BYTE DATE_TO [...] _DWORD DATE_TO_INT DATE_TO [...] _BIT DT_TO_BOOL DT_TO_BYTE

_BIT BOOL_TO_BYTE BOOL_TO [...] _DT BOOL_TO_DWORD BOOL_TO_INT [...] ); bReturn_6 := BOOL_TO_BYTE

_BIT TO_BYTE TO_BOOL TO [...] _DWORD TO_INT TO_LDATE TO [...] Number_1 := TO_INT(4