[amir]

hi i m very pleased to join this site ,im a mechatronic engineer and i would like to ask for help if u ve the basic plc for general cnc machine to send me anny files and thanks for listening

[pcroxford]

Welcome to CNCZone Amir!
You will find many knowledgeable people from across the globe here who are willing to help. The key to getting replies it is to be specific in your help request and place it in the right forum. Keeping conversation light friendly and somewhat focused on the application is always a plus ...
I am learning a ton about motion control from all these guys.
Good luck!

[amir]

hi thanks alot for ur reply,i just was asking if annyone can help me in sending me the basic programmable logic control for a general cnc machine,if annyone have any docments talking about the programmable logic control(plc) for cnc machine it will be very useful and thanks for ur care

[Bloy2004]

This might help

http://www.newfangledsolutions.com/i...viewtopic&t=21

[amir]

hi ,thanks alot for ur help, but actually i just would like to know how the programmable logic control (plc) unit controls the cnc machine system ,if annyone can help me with any documents talking about how the PLC unit control the cnc machine it will be very useful and thx for ur care

[Al_The_Man]

I assume you mean how the PLC interacts with the CNC side in a system such as Fanuc, Mitsubishi and others?
And how the operator interface in the PLC controls the CNC side, and how the M,S & T codes issued by the CNC side are passed over to the PLC for processing?
All of the above are implemented in the PLC ladder and many of the controls like the ones named above use a similar method.
If this is what you are looking for, the way it is done can be expanded on if you have specific questions.
Al.

[amir]

oh thank u , u meant that u considered in ur explanation how the plc in cnc interacts with cnc system with its g, m codes so this will be useful to me in making the cnc ladder diagram ,that will be useful thank u ,i had another Question which is: whats meant by sevo X and sevo Z of cnc machine as im still a beginner mentioning its components so if u can help me with some documentation it will be just fine

[Al_The_Man]

The servo axis desigation refers to the Cartesian Coordinate system see http://en.wikipedia.org/wiki/Cartesi...rdinate_system
For some further info this site has some free advice on the definitions of CNC in general.
http://www.cncci.com/index.html
It would help to know if you are looking at a specific CNC control or PLC in general.
BTW early CNC systems featured out-board PLC's where you could use the PLC of your choice, now most integrated systems include the PLC as a co-processor to the CNC controller and comunicate over a common back-plane.
Al.

[amir]

thanks alot for ur reply,i ve another question if u dont mind, i would like to ask if u ve any documentation about spot welding robot arm including how to make its mechanical design ,it will be very useful to me and thanks for ur care

[Al_The_Man]

The design and building of a welding robot is no mean feat, I would be inclined to look for a used unit to adapt as older robots can often be picked up for a reasonable price, is your background Mechanical or Electrical?
Al.

[amir]

im a mechanical engineer but i would like to know how could i start building my robot and how i can transmit motion to revolute joints hope if u could help me with some documents
and thanks

[Al_The_Man]

I see by your other thread that you want to write applications in C++ etc, If you want to go that route you could use a Galil card www.galilmc.com,see some of the instructional videos, they supply C++ and VB drivers for self developers.
Their products are powerfull multi-axis servo cards that sit in a PC (computer) slot.
They can be interfaced to many makes and types of analogue, stepper and network servo drives.
Look at the tutorials on the site for a better understanding of the equipment.
Al.

[amir]

thanku , but can u help me in finding a free sotware for robot arm simulation and thanks

[amir]

hello, thank u for ur help ,i ve another Question: if u can help me in finding some documents about the sensors types in cnc machines including the velocity and position sensors, and if u could hlp me in finding a software for robot arm simutation it will be also useful and thank u