Development and Application of Embedded Industrial Ethernet Interface

It is a new trend in the fieldbus technology that the Ethernet techniques are employed in the industrial process control field. The application of the industrial Ethernet not only avoids the horizontal integration difficulties among different fiedbus protocols, but also provides a convenient way connecting the field devices to the Internet. Based on the introduction of industrial Ethernet technique, this paper describes a method of expanding an Ethernet interface using RTL8019AS Ethernet controller in the 80C196 single-chip system.