PLC data type constants. More...

Macros
#define	TYP_USE_UNSPECIFIED 0x00

#define	TYP_USE_BIT 0x01
	bit arrays are formatted from lowest bit in byte without gaps

#define	TYP_USE_INT8 0x02

#define	TYP_USE_UINT8 0x03

#define	TYP_USE_INT16 0x04

#define	TYP_USE_UINT16 0x05

#define	TYP_USE_INT32 0x06

#define	TYP_USE_UINT32 0x07

#define	TYP_USE_INT64 0x08

#define	TYP_USE_UINT64 0x09

#define	TYP_USE_STRING 0x0A
	32 bit length + data (allows embedded 0 chars); the length is not included in PLC_REQ::Count, memlen required is PLC_REQ::Count + 4

#define	TYP_USE_FLOAT32 0x0B

#define	TYP_USE_FLOAT64 0x0C

#define	TYP_USE_FLOAT128 0x0D

#define	TYP_USE_TIMESTAMP 0x0E
	W_UINT64 seconds (unix time) + W_UINT32 nanoseconds.

#define	TYP_USE_STRUCTURE 0x0F

#define	TYP_USE_RPC 0x10
	general function call

#define	TYP_USE_FILE 0x11
	file object

#define	TYP_USE_DIRECTORY 0x12
	directory object

#define	TYP_USE_ENUMERATION 0x13
	always Int32 as base type

#define	TYP_USE_MULTILANG_STRING 0x14
	Multilanguage string: 16 bit number of translations + n * (32 bit locale length + locale + 32 bit data length + data)

#define	TYP_USE_TRIGGER_BIT 0xFFFF

#define	IsNumberType(f) ((((f) >= TYP_USE_INT8) && ((f) <= TYP_USE_UINT64)) \|\| (((f) >= TYP_USE_FLOAT32) && ((f) <= TYP_USE_FLOAT128)))

#define	TYP_FLAGS_ENDIAN_MASK 0x000F

#define	TYP_FLAGS_ENDIAN_UNSPECIFIED 0x0000
	unknown endian value or cpu format

#define	TYP_FLAGS_ENDIAN_1234 0x0001
	big endian format, is default

#define	TYP_FLAGS_ENDIAN_4321 0x0002
	little endian format

#define	TYP_FLAGS_ENDIAN_3412 0x0003
	wordswap big endian format

#define	TYP_FLAGS_ENDIAN_2143 0x0004
	wordswap little endian format

#define	TYP_FLAGS_ALWAYS_NEW 0x0010
	always send this value, even if it is equal to the previous one (e.g sync read on inactive item)

#define	TYP_FLAGS_CREATE_ACTIVATED 0x0020
	immediately activate on create item

#define	TYP_FLAGS_ARRAY 0x0040

#define	TYP_FLAGS_BLOCKED 0x0080
	partial data, more data for same item follow; use only for sync read/write

#define	TYP_FLAGS_BITARRAY_LEN_MASK 0x0700
	exact length of bit array (= number of used bits in last data byte); 0 = all 8 bits used

#define	TYP_FLAGS_BITARRAY_LEN_SHIFT 8
	shift amount for TYP_FLAGS_BITARRAY_LEN_MASK

#define	TYP_FLAGS_ERROR_IF_IMPOSSIBLE 0x0800
	Brings an error if the conversion may be impossible (e.g. -20 to unsigned)

#define	TYP_FLAGS_ERROR_IF_WRONG_TYPE 0x1000
	Brings an error if any conversion is needed (e.g. 8-bit to 16-bit, even if the value would fit in)

#define	TYP_FLAGS_ENDIAN_LOCAL_CPU TYP_FLAGS_ENDIAN_4321

Detailed Description

PLC data type constants.

Macros

Detailed Description