What is the major difference between cnc and plc. why cant
we use plc instead of cnc

Answer Posted / pramod yadav

CNC (Computer Numerical Control) is a particular application
usually to control a multi axis machine tool such as a
milling machine or a lathe but also could be a tube bending
machine punch press or similar. The CNC controller is
usually a purpose built controller using a micro computer
but could be a general purpose computer or a PLC. The
forerunner was NC (Numerical Control) before computers were
readily available, it used solid state logic and relays,
timers etc to provide the application.

A PLC (Programable Logic Controller) is a general purpose
logic controller specifically designed to allow the user to
create their own application. They select appropriate I/O
(Inputs Outputs) and perhaps function modules for purposes
such as communications and multi axis servo control and
program the PLC to perform the required functions.

Is This Answer Correct ?    10 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is harmonics? what are the factors it will depend upon

1745


What is CCT (Correlated Color Temperature) ?

1677


I have doubt that the supply HZ (very low or high than rated ) may affect the power factor. is it true. ?

1394


what is the most permissible winding temp when we conducting a generator load test?(condition no load)

1410


1.how many types of relays? 2.difference between ATS& STS?

1840






how to calculate percentage impedence at 75 deg C at normal tap

1983


Single line diagrams for star to delta and DOL starters.

1990


whether starting current is limited to rated current of motor through soft starting or it exceeds the rated current?

1269


what is the maximim current drawn by 1 phase and three phase welding machine

1603


I NEED RRB APTITUDE QUESTIONS AND MODEL PAPER,PLEASE SEND MY E-MAIL joo28_eee@yahoo.co.in

1633


what are safety measures in /control in diesal engine/ explain them?

1525


What type of a DC motor would you use for a lift?

812


What is the differance between 2 dc motors of armature voltage 660 v and 440 v?

1709


Explain about retrofitting of machine tool.

1633


How can we calculate the motor frame sizes?

3084