Patent ID: 7009357

Claim:
A servo-control system, comprising: a first controller which controls a first and third shafts; a second controller which controls a second and fourth shafts; wherein said first controller includes a first storing means in which information used for calculating the length on a first interpolation line is written, a first calculation means for reading the information from said first storing means to calculate the length on said first interpolation line, a transmitting means, and a receiving means, said second controller includes a second storing means in which information used for calculating the length on a second interpolation line is written, a second calculation means for reading the information from said second storing means to calculate the length on said second interpolation line, a transmitting means, and a receiving means, and said first and second controllers transmit or receive mutually the lengths on said first interpolation line and second interpolation line through said transmitting means or receiving means, whereby calculating the positions of said first and second axes based upon the length on the first interpolation line, and calculating the positions of said third and fourth axes based upon the length on the second interpolation line.