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  • Hakan
  • Hakan
13 Feb 2026 20:19

IndraDrive + LinuxCNC – PDO configuration problems

Category: EtherCAT

Have a look in syslog "sudo dmesg" and if you find the word EoE that is a problem.
Typically that interferes with the linuxcnc lcec component, which can not handle EoE.

There is a way to read out the eeprom content from the drive, flip a bit and write the eeprom content back.
However, it is much better to compile the ethercat master yourself with eoe disabled.
It has been recommended before in the forum, please search (I don't have it readily available).

See how far that takes you. 
  • Nkbhvid
  • Nkbhvid
13 Feb 2026 20:11

Retrofit 7 ton HOMAG with Rexroth motors and drives - mesa 7i97t

Category: General LinuxCNC Questions

Axis0 11mv
Axis1 9mv
Axis2 10mv
Axis3 9mv
Axis4 10mv
Axis5 9mv
  • tommylight
  • tommylight's Avatar
13 Feb 2026 20:06
Replied by tommylight on topic QtPyVCP Mill Touch Screen

QtPyVCP Mill Touch Screen

Category: QtPyVCP

@Kell,
Do not send reports asking for help, you will be banned for doing that again.
-
From your error report:
Can't execute DISPLAY program qtpyvcp
So did you install QtPyVCP as per the howto on their github?
  • tommylight
  • tommylight's Avatar
13 Feb 2026 20:03
Replied by tommylight on topic Joint following error all axis

Joint following error all axis

Category: General LinuxCNC Questions

You are welcomed, always.
  • tommylight
  • tommylight's Avatar
13 Feb 2026 19:58
  • Nkbhvid
  • Nkbhvid
  • PCW
  • PCW's Avatar
13 Feb 2026 19:31 - 13 Feb 2026 19:34

Retrofit 7 ton HOMAG with Rexroth motors and drives - mesa 7i97t

Category: General LinuxCNC Questions

Failed communication connections are a software issue.


If you power the 7I97T (and not run LinuxCNC), do you read
near 0V on all analog outputs? (that is, less than 15 mV)
  • TAKUYA
  • TAKUYA
13 Feb 2026 19:17
Replied by TAKUYA on topic StepperOnline A6 Servo

StepperOnline A6 Servo

Category: EtherCAT

Moin,
mich würde interessieren wie du deine A6 getuned hast.
Ich hab noch immer leichtes fiepen an manchen Stellen und kriegs einfach nicht weg.
  • Sparky3
  • Sparky3
13 Feb 2026 19:02
Replied by Sparky3 on topic QTPlasmaC Remove Z axis for Tube Cutter

QTPlasmaC Remove Z axis for Tube Cutter

Category: Plasma & Laser

vikingj
Can you post your INI and hal files.
  • Nkbhvid
  • Nkbhvid
13 Feb 2026 18:56 - 13 Feb 2026 18:58

Retrofit 7 ton HOMAG with Rexroth motors and drives - mesa 7i97t

Category: General LinuxCNC Questions

Hmmmm
as said: it has never left the office desk and has never been near a “large machine” in real life.
If damaged it can only be because of the failed attempts to connect to LinuxCNC.
  • rhscdn
  • rhscdn
13 Feb 2026 18:39

tool setter setup: automating z-height offset for tool changes

Category: Advanced Configuration

Found this useful thread after posting:
forum.linuxcnc.org/qtvcp/39423-qtdragon-...a-manual-tool-change

Looks like someone wrote something similar and had it working for qtdragon and gmoccapy for 2.8.x. Will start here and update this thread.
  • PCW
  • PCW's Avatar
13 Feb 2026 18:38

Retrofit 7 ton HOMAG with Rexroth motors and drives - mesa 7i97t

Category: General LinuxCNC Questions

Missing grounds between a large machine and the controller can easily damage
analog and encoder pins, that is, unless a permanent ground exists between
the machine and the control electronics. there can easily be enough potential
difference to damage electronic connections.
  • mr_huxley
  • mr_huxley
13 Feb 2026 18:29

IndraDrive + LinuxCNC – PDO configuration problems

Category: EtherCAT

Hi everyone,
I’ve recently been trying to set up a IndraDrive from Bosch Rexroth with LinuxCNC, and I’ve run into some difficulties.
After quite a bit of research here on the forum, I’ve narrowed it down to two possible causes:
  1. The IndraDrive supports EoE in addition to CoE. Could EoE be interfering with PDO configuration? Is there a recommended way to disable EoE on the drive? I’m using the latest LinuxCNC version and followed the EtherCAT tutorial from the forum.
  2. I’ve seen that some people define initcmds in the Ethercat-conf.xml, and I believe those may include PDO configuration. What would be the best approach here? In my XML I already have configPDOs="true", so I assumed initcmds wouldn’t be necessary.
I can configure the PDOs exactly as I want using IO Engineering (Bosch’s equivalent to TwinCAT), but once I switch back to LinuxCNC, the PDOs are either missing or appear randomly most of the time. They are dynamically allocated from what I understand.

Any guidance would be greatly appreciated. Thanks!
  • Nkbhvid
  • Nkbhvid
13 Feb 2026 18:13

Retrofit 7 ton HOMAG with Rexroth motors and drives - mesa 7i97t

Category: General LinuxCNC Questions

I wonder how this could be damaged?
it has never been connected to anything else but 5 volt, Ethernet, one encoder and one analog out? It has never been installed and has never left the table.
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