A DATA TRANSFER METHOD FOR AN ACTUATOR SYSTEM OPERATING IN AN ENVIRONMENT SUBJECTED TO INTERFERENCES

摘要

The invention relates to data transfer method for an actuator system operating in an interfering environment. According to the method a basic unit (30) communicates with at least one actuator (31) through a bus (33, 32). According to the invention the basic unit (30) forms on the bus (32) a continuous clock signal of essentially constant frequency, the basic unit (30) maintains a data register comprising the memory locations for storing of data, information used in communication is divided into bytes of fixed length containing the address data (ADDR) of the register of the basic unit (30), and a data item (DATA), and the actuator (30, 31) recognizes an information byte on basis of its data register address (ADDR). In an advantageous embodiment of the invention each byte to be sent is reduplicated.