Today’s buzzword “IT” has revolutionized every aspects of our day today working lives. Automation of industries is one of its main contributions. Automation can be defined as technology concerned with the application mechanical, electronic and computer-based systems to operate and control production. . The main advantage of automation is increased labor productivity at reduced labor cost. The heart of machine tool is a CNC (Computerized Numerical Control) system, which coordinates with the displays, PLC, drives system, and feed back systems. This paper deals with the data acquisition, program management and remote diagnosis of the system.Numerical control is for of programmable automation in which the mechanical actions of a mechanical tool or other equipment are controlled by a program containing coded alphanumeric data. Computerized numerical control (CNC) is defined as an NC system who’s MCU is based on a dedicated microcomputer rather than a hardwired controller.Remote diagnosis or Tele service offers remote support for CNC systems, making it a cost-effective alternative to service calls. Lot of time can be saved by this.