Type	Rust Type	Size	Range	IEC 61131-3 Equivalent
bool	bool	1 byte	true / false	BOOL
u8	u8	1 byte	0 to 255	USINT / BYTE
i8	i8	1 byte	-128 to 127	SINT
u16	u16	2 bytes	0 to 65,535	UINT / WORD
i16	i16	2 bytes	-32,768 to 32,767	INT
u32	u32	4 bytes	0 to 4,294,967,295	UDINT / DWORD
i32	i32	4 bytes	-2,147,483,648 to 2,147,483,647	DINT
u64	u64	8 bytes	0 to 2^64 - 1	ULINT / LWORD
i64	i64	8 bytes	-2^63 to 2^63 - 1	LINT
f32	f32	4 bytes	IEEE 754 single precision	REAL
f64	f64	8 bytes	IEEE 754 double precision	LREAL