modbusreader.structutils¶

structutils.py: extends the function of the struct package

modbusreader.structutils.bytes_to_datatype(byte_list, data_type)¶

Unpacks a bytes object to the given data type

Parameters:	byte_list (bytes) – bytes object data_type (str) – human readable data type. One of: int16, int32, uint32, float, byte, boolean
Returns:	unpacked value
Type:	int, float, byte, boolean
Raises:	ValueError – If size of data type is not equal to the size of the bytes object.

modbusreader.structutils.calcsize(data_type)¶

Return size in bytes of the struct described by the given data type

Parameters:	data_type (str) – human readable data type. One of: int16, int32, uint32, float, byte, boolean
Returns:	size in bytes of the struct described by the given data type
Type:	int

modbusreader.structutils.get_format(data_type)¶

Get struct format type from human readable data type

Parameters:	data_type (str) – human readable data type. One of: int16, int32, uint32, float, byte, boolean
Returns:	struct format type
Type:	str

modbusreader.structutils.int16list_to_bytes(int16_list)¶

Packs all given integer values into bytes object

Parameters:	int16_list (list of int) – list containing unsigned 16 bit integers
Returns:	packed integer values
Type:	bytes