modbus_get_byte_from_bits


 

Function

 

Converts bit information to byte information.

 

Format

 

ret = modbus_get_byte_from_bits( src , index , nb_bits )

 

Parameters

 

src [ VB.NET: Byte() ] [ C, C++: uint8_t * ] [ C#: byte[] ] [ Python: ctypes.POINTER(ctypes.c_uint8) ]

Specify the start address of the array that has stored the bit data which is to be converted to bytes.

 

index [ VB.NET: Integer ] [ C, C++: int ] [ C#: int ] [ Python: ctypes.c_int ]

Specify the position to start byte conversion in the src array.

 

nb [ VB.NET: UInteger ] [ C, C++: uint ] [ C#: uint ] [ Python: ctypes.c_uint ]

Specify the number of bits to convert.

 

Return values

 

ret [ VB.NET: Byte ] [ C, C++: uint8_t ] [ C#: byte ] [ Python: ctypes.c_uint8 ]

 

If the function succeeds, the byte conversion result is returned.

 

Remarks

 

Converts the given bit information to byte information.

 

Example

 

Converts the bit array [0, 1, 0, 1] to byte information (10).

 

VB.NET

Dim ret As Byte

Dim src() As Byte = { 0, 1, 0, 1 }

ret = modbus_get_byte_from_bits(src, 0, 4)

 

C, C++

uint8_t ret;

uint8_t src[] = { 0, 1, 0, 1 };

ret = modbus_get_byte_from_bits( src, 0, 4 );

 

C#

byte ret;

byte[] src = { 0, 1, 0, 1 };

ret = modbus.GetByteFromBits(src, 0, 4);

 

Python

ret = ctypes.c_uint8

uint8_buff_type = ctypes.c_uint8 * 4

src = uint8_buff_type()

src[0], src[1], src[2], src[3] = (0, 1, 0, 1)

ret = modbus.modbus_get_byte_from_bits(src, 0, 4)