A network monitoring system for GMAW welding machine based on CAN bus

A network based on CAN bus between GMAW welding power source,welding trolley and remote control box is developed, and it is connected to host computer.All welding parameters can be adjusted and monitered easily.The hardware circuit based on the eCAN module embedded in the TMS320F2812 and the software flow chart for CAN communication are described in detail.The experiment result proves that the CAN bus can be used in the GMAW welding machine network controlling system and reliable data transmission can be implemented.