Abstract: The industrial network that use traditional fieldbus make the seamless integration of Office Automation (OA) and Industrial Automation (IA) impossible. Today there have been many enhancements to the Ethernet standards, especially in areas of determination, speed and prioritiy. Issues that prevent Ethernet from being used in real time control environments have now been resolved. Since Ethernet is already the network choice for business computation, its presence at the control level will facilitate the information integration from sensor level to management level.