US 4,633,155 A · Numerical control system

Abstract

A numerical control system in which data signals are exchanged between a computer processing device MPU and each function block through an address bus ABUS and a data bus DBUS. Parallel electric signals are converted into serial signals by shift registers SHR.sub.1 and SHR.sub.2, and are converted into light signals by transmitters Tx.sub.11 and Tx.sub.12. The light signals are delivered to pulse distributors PDN through optical fiber cables OF.sub.1 and OF.sub.2 and these light signals are converted back to electric signals by receivers Rx.sub.3 and Rx.sub.4 and are further converted into parallel signals by shift registers SHR.sub.3 and SHR.sub.4. The parallel signals are delivered to a pulse distributor PD as position signals in the directions of X, Y and Z axes thereby to driving servomotors.

Claims2

Dependent claims

A numerical control system for controlling a machine, comprising:

a data processing section for processing data signals;
a bus comprising an optical fiber cable operatively connected to said data processing section, said bus transferring therethrough the data signals in the form of bit serial light signals;
and
functional block means, operatively connected to said bus, for controlling the machine in dependence upon the data signals from said data processing section, comprising:
a photo branching device operatively connected to said optical fiber cable;
a receiver, operatively connected to said photo branching device, for converting the bit serial light signals delivered thereto by said photo branching device into a serial electric signal;
and
a shift register, operatively connected to said receiver, for converting the serial electric signal delivered by said receiver into a parallel electric signal.

5 more elements

Dependencies are inferred from the claim text.

Numerical control system

Life of this patent

Numerical control system

Life of this patent

Abstract

Claims2