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No, the system will be linuxcnc, the head does not yet  have a BC-AMP but there is provision to mount an amplifier to existing tapped holes. So at this stage I don't measure anything!
 
Your unit should fit and it would be up to me to adapt  linuxcnc to read your system and interpret the results for height control.
I have previously beta tested some hardware for Mesa and developed an ohmic sensing component for linuxcnc, which is now part of linuxcnc that enables the hardware I tested.
linuxcnc.org/docs/stable/html/man/man9/ohmic.9.html


 

OK, I am making some headway and beginning to understand how things are being read in. The GUI loads up now, but before  I try to jog anything do I need to modify these sections too? 

What's the cause among all text, but it is this line in the middle. More variables to rename.
You have it marked already in the left window. lcec.0.D1.srv-cia-controlword
But you renamed the wrong variable. Rename lcec.0.0.cia-controlword.
 

Ok, we made it a bit further. but now the entry I've added that should be correct does not seem to take, also there is an error regarding SDO upload?

Steve Cap

2. no, not that i can think off.

I thought I would reply here as I too bought a Byte2Bot parallel hat. I eventually did get it working, but in hindsight I believe I made a mistake purchasing this. While it does work for its intended purpose once you figure out the setup, it is limited to 12 outputs and 5 inputs. What I should have done is purchase a level shifting GPIO breakout hat, which give 26 pins of I/O and each pin can be either input or output. As my particular machine is set up, I have used all of the 5 inputs on the byte2bot board, but could use some more. I believe a level shifting breakout board would have been more useful for me.

I installed Linux Mint Debian (faye) and LinuxCNC. It all works fine, but LinuxCNC is rev 2.9.0 something.
1. How do I upgrade to the most recent version?
2. Does this really matter?

Thanks,
Steve

In gmoccapy I have the initial rpm set to 350, the override coefficient 1.2 and the max rpm to 600. In manual mode I start the spindle and the rpm starts at 350 as 100% I am not able to raise it to the maximum level which is 600.
The second issue in MDI mode I call the command for example M3 S175 and I have such rpm on the display and the slider at 100%.  After switching to manual mode , starting the spindle with the button the rpm starts from the level of the last called command M3 S....

Für open loop kannst du den stepgen als position feedback verwenden. ZB:

That (>16 ms latency) seems like a power management issue or perhaps a hardware failure.
Are all power management, C States >C1 , Turbo modes etc disabled in the BIOS?

I added the pcie_aspm=off and also igb.EEE=0
while running latency-histogram the rt error occurred and the latency shot up massively, see attached.
i then added isolcpus=2,3. I have since done some cutting and not had the error since. Time will tell if that resolved it or not, but the massive increase in latency that came out of nowhere makes me think there is something else happening

 

Please give me more information to be able to help you (e.g. screenshots..)

There it is, that's the name lcec.0.D1.srv-cia-statusword instead of lcec.0.0.cia-statusword you have in the hal file.
Replace in cia402.hal file and you should come one step further, to the next variable.

The index 0x6041, you don't seem to need that now when the naming pattern is so obvious from the listing.

I guess EtherCAT went out of OP mode, to INIT or PREOP. No harm done. You have started linuxcnc in a very rudimentary state. If you like to, you can stop it with "halrun -U". Optional. EtherCAT continues to work and linuxcnc will make it enter the state it needs to be in.

I have attached the output of those commands. I am having a hard time understanding what information to take from the `show pin` output and where (cia402.hal?) to put it exactly. for that line regarding statusword it shows:
"    10  u32   OUT    0x00000000  lcec.0.D1.srv-cia-statusword"
and I could not find any reference to 0x6041 anywhere. 
 
Also, after running `halcmd loadrt lcec` , the ethercat network activity stops, where usually it's blinking. not sure if that is expected or not. 

Steve Cap

Yes the wire breaks most often just in the area of the wheel.
Now we bought wire still kanthal from another source is more expensive than the previous one and it is much better.
The machine currently works without the sensor. However, in the future I would like to have this function anyway. I was wondering if it is possible to use one of the inputs as a digital input (because I saw in stepconf that such a function can be assigned) and connect it programmatically to the pause?