The ET 200SP open controller CPU 1515SP PC2 is a rugged, compact system that combines controller functionality with a PC-based platform. The CPU includes integrated motion functions for handling speed-controlled and positioning axes. It supports external encoders and extended synchronous operation functions, including camming and kinematics. It can be used in special and series machines and can control plants in a distributed configuration. Communication modules such as a Profibus CM DP module and I/O modules can be plugged in directly and can communicate via an integrated backplane bus. Additional remote I/O stations can be connected with the integrated Profinet ports.