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

| INT | LDATE | LDATE [...] | USINT | WORD 时间

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

| 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

_DWORD WORD_TO_DWORD INT [...] WORD_TO_INT LDATE [...] DWORD_TO_WORD INT_TO_WORD

_DWORD Integer STRING_TO_INT WSTRING_TO_INT STRING_TO_INT('123abc') WSTRING_TO_INT

_DWORD(TRUE) 1 Integer BOOL_TO_INT BOOL_TO_INT(TRUE) 1 [...] ) 1 Integer BOOL_TO_WORD

_DWORD Integer DATE_TO_INT DT_TO_INT TOD_TO_INT Integer [...] _USINT Integer DATE_TO_WORD DT_TO_WORD