Does it's possible to Refit.

I added video of very similar cnc machine.
Original machine need to be refited.
Old program is lost with broken PC.

Possibly I can take job for refitting such machine and to earn some money. I got to study electrical schematic and found that it has:
- 8 servo drives (include 2 for spindles)
- 95 Digital inputs
- 99 Digital outputs.

Servodrives could be controled with analog signal (not step/dir).
PLC-module for input/output uses CANOpen.

Such machine has very interesting mechanics: 
it can work on Top and Bottom sides simultaneously: to drill and to mill and it has horisontal drilling head also.  

Can I connect linuxcnc to CAN bus (posibly with using some converters)? Does it's possible to use 7i74 board for this purpose is there any driver to connect it to CANbus? 
If not, what hardware possibly could I use from MESA?
I suppose such configuration if CAN interface can't be used: 
- 7i94 anything I/O Ethernet - 1pcs
- 7i71 - 2pcs (I think I will disable some outputs)
- 7i70 - 2pcs 
- 7i77 - 2pcs 
- 7i92 - 1pcs

But I hope that CAN interface is possible to use.

In this machine will be 
- as I said - driling, milling from top and bottom sides:
- one axis has "hand" that could move border on more then dimension of the axis. I currently doesn't know how to make postprocessor and processing for this function.
- on top and botom sides there is drilling heads
- one horizontal head.

I think this job will be very hard and very interesting. How do you think, how much such job could cost?

Interesting project for sure.
This company is the only source that I know of that seems to support CAN bus for Linuxcnc but really I have not heard of anybody actually using this system nor if it will work with CANopen.
But you could maybe send them an email.
www.generalmechatronics.com/docs/LinuxCNC_Brochure.pdf

I've seen that company and I ask them. But only after you remained me about them Aciera.

Also, now I look more precise into the project. There is a lot of valves Bosch Rexroth with Inputs/outputs. This devices has AS-interface.
So in this project I can change CAN interface with MESA board. But AS-interface I can't axchange.
So, If it possible to connect AS-interface to linuxcnc, it could be refited, otherwise - not.

But possibly AS-interface is connected to CNC through CAN, So I return back to CAN.

you can get access to ASI and CAN Bus over ethercat.

Thanks for that answer, db1981, I think that it's good idea. Can you explaine me more detailed about this?

I found topic from Grotius,
forum.linuxcnc.org/ethercat/35591-beckho...w-to-install?start=0
Where Ethercat is configgured from Ethernet board on PC. Possibly I can make such configuration but what will be next? How to connect wires and to make configuration for this? As I saw from Internet, ethercat has 4-wire, AS-i and CAN - only 2-wire.

I will not ask now about how to set drivers whatever you get tire to explaine))

Ethercat is an Field Bus System, inside this system you can attach CanBus Masters (EL6751) and ASI Interface Cards (EL6021). But for getting this running, you need an in deep knowledge of electronics / fieldbus systems / Servo Systems and C programming ....

"As I saw from Internet, ethercat has 4-wire, AS-i and CAN - only 2-wire" reading this, i think this job is a number to big or will take several years...

Doing this job for money, for the use in an industrial environment, including post processor development, modifying guis, customized c-components, and all the other stuff that is neccesary (documentation, safty concept, manual, etc...) without deeper calculation this will get an higher 5 digit € job.

Tommylight, you are definatly right about that.

I have some experiance in refit. I maid in last year 2 cnc machines with 7i77 boards. And I must say that what you plan to build in 3 monthes will last in 6 or more. Always have some troubles. At last when almost everything was finished one drive broke in my last project. I've lost 3 mothes for this reason to repair it. But it was also experiance.

This project I want to make for experiance. But it would be very nice if it would be paid at least for the time that I will study it.

db1981 thanks for aproximate amount.
Unfortunatly in our country 4-digit number in $ (even not EUR) is maximum that it could be paid )))
But in the future could be more similar projects and such salary could be reached. Or it's possible to simplify such machine somehow.

Thanks for your references about bekchoff modules, I will study their manuals to more clearify comunications topic. I think if it's possible to comunicate with CAN and AS-i interfaces, it would be big step for linuxcnc as cnc system.
 

Does it's possible to use on one PC EtherCAT and MESA 7i92 (for ethernet). I mean if I have 2 LAN ports - to configure them for different purposes?