Patent ID: 6625498
Filing Date: 2003-09-23
Classification: G05B

Abstract:
A numerical control system which comprises one numerical control device constituting a master unit, and one or more numerical control devices constituting slave units, and the axes controlled by these different numerical control devices are controlled in synchronism with each other, the numerical control system comprising:a master unit comprising: a clock data generating unit generating clock data by counting a clock signal from a clock by either counting up or counting down at a prescribed time interval; a transmitting unit transmitting the clock data generated by said clock data generating unit to said slave unit from said master unit; a master storage unit storing a program including motion commands of an axis controlled by this master unit; and a master starting unit starting up said program based on said clock data; each of said numerical control devices constituting slave units comprising: a slave storage unit storing a program including motion commands of an axis controlled by each slave unit; and a slave starting unit starting up said program based on said clock data from said master unit.