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Do you get latency warnings when running LinuxCNC?
If not, do not change anything.
If yes, download the Wheezy ISO and boot from USB, start your config by right clicking on the .ini file, open with, type linuxcnc and press enter.

Hello,
I have the same issue with my 7i96S card. It works for 2 years without problem, and once it has a communication error.
On the startup, linuxcnc shows the message you can see in the attached photo.
The fpga boots properly (led flashes, and turns off). The 5VDC power supply is ok, the ethernet cable is tested.
System is Debian 10 with LinuxCNC 2.8.4. In linux on the taskbar, the network connection shows the network is connected.
The IP jumpers are set to EEPROM (10.10.10.10).Attached photo shows the ping 10.10.10.10. results. 
The IPv4 settings are attached.I see you mentioned testing a card with ip: 192.168.1.121.

Can you help me to configure the ethernet connection for this IP?

Result of the "ip a" command is attached.On the Rj45 connector just the green led lights/blinks, the yellow never (nieter during ping).

What can be with a card, can you help me to solve it?

Hi
Before installing linuxcnc I need to have a real-time kernel for my orange-pi 4 lts.
I could'nt fine any ready .deb file to install on my board so I've tried to compile one for myself.
But so far I failed over and over again.
I dont know what should I do. Can anyone please help me how can I get through this?
The procedure that I went through:

I've downloaded a 5.10.41 kernel from:
mirrors.edge.kernel.org/pub/linux/kernel/v5.x/

Then I've downloaded the rt patch (5.10.41-rt42) from:
cdn.kernel.org/pub/linux/kernel/projects/rt/5.10/older/

Then I patched it to the kernel, and then used a cross-compiler to compile it:
make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- xconfig
make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- -j8 deb-pkg

Then I copied the result created .deb files into my board and then install. but nothing happens and it doesn't switch to new kernel after reboot.
I even manually configure the u-boot settings in order to find and recognize my new kernel files but after doing this the board doesn't boot up at all and just stuck in boot.
what can I do??

I have used the Soyo SY-H110Z full firmware version V3.0 with a modified BIOS and an i3 8100 with low latency.
I am currently using the Supermicro x11ssm-f which has a slightly higher latency than the above motherboard but has two network ports.
Generally, full-size atx motherboards can achieve good latency

sincere apologies. since i do not initially know or understand how stepgen actually works (even after reading the stepgen and hal manual) I have just copied the code from another solution. however, the spindle still doesnt work. infact the AXIS gui doesnt start. i get the following error. "./test_grofi.hal:72: Pin 'stepgen.2.step' does not exist
3015"

please help me and guide me through the basics. :´)

EDIT: added this to the start of the HAL file loadrt stepgen step_type=0,0,0 ctrl_type=p,p,v
and removed a typo on line 79: setp stepgen.2.dirsetup       [SPINDLE_0]DIRSETUP

and now the servomotor moves as a spindle. next i will have to set the speed and rpm as i need. Many thanks for pushing me into looking at the right direction!! Cheers

You are probably paying for more expensive electronic parts. Probably the cheap version doesn't have an fpga chip . I think you give most of the money. Buy the expensive version.
For PC, just choice an old workstation. You can review the latency test topic

Thanks for the info,

I am getting the Encoder battery its literally like $4 here are my cost options if anyone else needs this for future reference price is ex shipping and import fees

EL7-EC1000N - With 1000W (3.18nm) motor + Brake + Cables and Battery - $255 per Axis
EL8-EC1000F - With 1000W (3.18nm) motor + Brake + Cables and Battery - $351 per Axis
EL7-EC1500N - With 1500W (6.00nm) motor + Brake + Cables and Battery - $449 per Axis

I am not sure if the EL8 is work the $96 extra

Yeah I am looking at getting refurbed Beckhoff El2008, El1008 with the EK1100 Coupler. I was not planning on keeping the hand wheel but the Mesa card does not look to bad.

Do you have any tips for PC wise to run LinuxCNC? I am looking at industrial PC's but they have stoneage hardware for the price of a high end gaming rig xd. Would a Pi or Intel Nuc be viable here, I want to make this a decent retrofit but as a home mill I have to be realistic with the components I choose.

1.

"python3\r": Datei oder Verzeichnis nicht gefunden

Das deutet auf Windows-Textformatierung. Verwendest du Windows um den Text zu kopieren?

2.

execv(./interval.py): Permission denied

Deutet darauf hin, dass du die Datei 'interval.py' nicht zum Ausführen freigegeben hast.

Either L7ec or L8ec is fine. The former is cheaper while the latter is a bit more expensive. I don't feel much difference in use. Try to buy the encoder cable with battery. It can be configured to use absolute value. In this way, the limit and origin switches are saved. For io, ek1100 plus el1008, el2008 and ek5102 should be enough (ek5102 is used for handwheel encoder). I feel that Beckhoff is a bit expensive. You can also use mesa7i92 card. I am currently using ethercat bus servo drive and 7i92. 7i92 is mainly used for handwheel and tool setting.

"The 5' chunk of accordion material I think was ~$20,"
Where can we buy it?

Not sure about the analog input of your MESA hardware but it might be possible to use a MESA THCAD board which converts DC voltage to frequency and connects to an encoder input. But you would need to check if it is suitable for 3.3V

'M52 Pn' is Gcode so it would have to go into the Gcode program or be issued as an MDI command.

once you have the voltage (or frequency ) in HAL you can do all kinds of things including a PID loop to control the feedrate also a GUI panel should be trivial then.

Thank you, I am still far out from this project as I have not purchased anything yet, I want to make sure I know what I need and what I'm buying. I am currently learning about Ethernet ports with real-time operations and which PC to use for this.

I need someone pointing me in the right direction to get my spindle running.

I can either try to get classic ladder to work. For whatever reason, it will not work with Rio.

This is the code rio creates in the rio.hal file.
If I start LinuxCNC, it is not in Modbus Master mode. So I changed the configuration. This is what works on the same machine.

When I start LinuxCNC I get the following error:
I tried to remove the numS32out=100, but no success. I can load the program manually with the ladder editor, but it is still not in modmaster mode and won't work.

---

I could also continue to work on the Modbus integration. I know which registers to read and write from my VFD, but need some starting help to translate this:

 

Into this:
 
 

forum.linuxcnc.org/plasma-laser/54413-th...-will-kill-it#314239