Industrial automation control networks are serial-bus based multidrop networks that intelligently connect industrial sensors, actuators, devices and process control subsystems to each other and to enterprise networks.

Historically, industrial automation has used non-bus based 4-20mA analog current loops for device control. Since the early 1970s, there has been an emergence of multiple digital serial buses, called fieldbuses. This paper provides an overview of industrial control network options as well as an introduction to Xilinx’s industrial control market products.