sykzhong / Raspi_HMI_Modbus

Communication between Raspberry and HMI, using Modbus protocol.

Relationship between raspi axis, HMI axis and World(Picture) axis:

Raspi:					HMI:		|	World(Picture):
ADDR_AXIS_ONE_POS		X Axis 		|	X Axis
ADDR_AXIS_TWO_POS		Y Axis 		|	Z Axis (reversed)
ADDR_AXIS_THREE_POS		U Axis 		|	U Axis
ADDR_AXIS_FOUR_POST		Z Axis 		|	Y Axis