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  • Hakan
  • Hakan
Yesterday 04:30
Replied by Hakan on topic Ethercat SDOS to XML

Ethercat SDOS to XML

Category: EtherCAT

I also set them in xml. But troubleshoot and experiment on the command line.
  • rodw
  • rodw's Avatar
Yesterday 04:23
Replied by rodw on topic Ethercat SDOS to XML

Ethercat SDOS to XML

Category: EtherCAT

answer no they don't
  • rodw
  • rodw's Avatar
Yesterday 04:21
Replied by rodw on topic Ethercat SDOS to XML

Ethercat SDOS to XML

Category: EtherCAT

I've always set the SDOs in the xml
So I had a play when I worked out I needed to use 0x3000 and despite all of linuxcnc's complaining, the entries were set correctly.
Do SDO's persist on power cycles?
 
  • spumco
  • spumco
Yesterday 04:20
Replied by spumco on topic Need help with Bash M-code

Need help with Bash M-code

Category: General LinuxCNC Questions

Solved.

Short answer(s) for anybody in the future reading this:
  1. No, do not need to change (INI_FILE_NAME)
  2. Yes, yes, and I no longer care what "catch" does.
  3. Yes.  You can just write each hal command line out in a readable form.
  4. Yes, the way it's written permits changing "x y z" at the top and everything below gets sorted out.  Clever, but miserable for us Luddites to unravel.
  • Hakan
  • Hakan
02 Apr 2026 03:41
Replied by Hakan on topic Ethercat SDOS to XML

Ethercat SDOS to XML

Category: EtherCAT

Strange. If it's in the sdos listing I have always been able to read the value with
ethercat upload -p 0 0x3000 2
for example.
  • rodw
  • rodw's Avatar
02 Apr 2026 03:20
Replied by rodw on topic Ethercat SDOS to XML

Ethercat SDOS to XML

Category: EtherCAT

yeh, I tried 0x3000 and had no more luck (it is a hex value)
  • Hakan
  • Hakan
02 Apr 2026 03:18
Replied by Hakan on topic Ethercat SDOS to XML

Ethercat SDOS to XML

Category: EtherCAT

0x3000 perhaps? Try upload to read the register.
  • rodw
  • rodw's Avatar
02 Apr 2026 03:06
Replied by rodw on topic Ethercat SDOS to XML

Ethercat SDOS to XML

Category: EtherCAT 

cnc@linuxcnc:~/linuxcnc/configs/catioa$ ethercat slaves
0  0:0  PREOP  +  IMC IO MODEL with EtherCAT
cnc@linuxcnc:~/linuxcnc/configs/catioa$ ethercat download -p 0 3000 2 0x1000 -t uint16
SDO transfer aborted with code 0x06020000: This object does not exist in the object directory

Apparently not. Looks like I have to lug a spindle into my office. Is the syntax right?
  • Hakan
  • Hakan
02 Apr 2026 02:35
Replied by Hakan on topic Ethercat SDOS to XML

Ethercat SDOS to XML

Category: EtherCAT

Does it work when you set the values with ethercat download/ethercat upload?
  • rodw
  • rodw's Avatar
02 Apr 2026 02:25
Ethercat SDOS to XML was created by rodw

Ethercat SDOS to XML

Category: EtherCAT

I'm trying to set the catio-a I/O module to talk to a VFD via Modbus but I am at a bit of a loss.
Excerpt from Ethercat sdos
SDO 0x3000, "Set Modbus reg W"
  0x3000:00, r-r-r-, uint8, 8 bit, "SubIndex 000"
  0x3000:01, rwrwrw, uint16, 16 bit, "SubIndex 001"
  0x3000:02, rwrwrw, uint16, 16 bit, ""
  0x3000:03, rwrwrw, uint8, 8 bit, ""
  0x3000:04, rwrwrw, uint8, 8 bit, ""
  0x3000:05, rwrwrw, uint8, 8 bit, ""
  0x3000:06, rwrwrw, uint8, 8 bit, ""
  0x3000:07, rwrwrw, uint16, 16 bit, "�"

I got this for the xml file but I get errors reported but eventually axis opens without any syntax issues with 
Failed to Execute SDO download size 1, byte0=0 error -5, abort code 06010000
<sdoConfig idx="3000" subIdx="2"><sdoDataRaw data="00 10"/></sdoConfig> <!-- Address 0x1000 (Swapped) -->
<sdoConfig idx="3000" subIdx="3"><sdoDataRaw data="10"/></sdoConfig>    <!-- Length: 16 (Hex 10) -->
<sdoConfig idx="3000" subIdx="4"><sdoDataRaw data="01"/></sdoConfig>    <!-- Slave ID: 1 -->
<sdoConfig idx="3000" subIdx="5"><sdoDataRaw data="04"/></sdoConfig>    <!-- Type: 4 (Holding Register) -->
<sdoConfig idx="3000" subIdx="6"><sdoDataRaw data="01"/></sdoConfig>    <!-- Enable: 1 -->

subIdx 0 = read only
subIdx 1 is a PDO so no need to set in SDOs, PDO definition works
SubIdx 7 is a error count

If you have ideas, please have a go.

Would the VFD need to be connected via rs485? I have not done that yet.
 
  • kello711
  • kello711's Avatar
02 Apr 2026 00:38
Replied by kello711 on topic XHC WHB04B development?

XHC WHB04B development?

Category: General LinuxCNC Questions

I have this pendant and would like to test out your firmware. Where do I find it/install it from? I'm tired of this device working and then just deciding to quit working in the middle of operations.
  • PCW
  • PCW's Avatar
02 Apr 2026 00:26
Replied by PCW on topic Bitfile for rcservo - MESA 7i95t

Bitfile for rcservo - MESA 7i95t

Category: Driver Boards

Firmware for a 7I95T with 2 RC PWMgens replacing the last (05) step/dir pins:

 

File Attachment:

File Name: 7i95t_2rcpd.zip
File Size:283 KB

 
  • tommylight
  • tommylight's Avatar
01 Apr 2026 23:54
Replied by tommylight on topic MotionMaster Upgrade

MotionMaster Upgrade

Category: General LinuxCNC Questions

I've confirmed that I can get a voltage if i turn the servos by hand. The resistance is above the plate, but still under 2ohms. 4 brushes in good condition.

He stated so a few posts back, i did not see it in the pictures from a quick glance, and glasses are not helping much.
4 brushes might be 2 for motor and 2 for tacho, or might be all 4 for motor if they are the same shape and size, as i have plenty of motors with 4 brushes at 90 degree each.
  • motionmasterupgrade
  • motionmasterupgrade
01 Apr 2026 23:44
Replied by motionmasterupgrade on topic MotionMaster Upgrade

MotionMaster Upgrade

Category: General LinuxCNC Questions

I'm going to make a list of components grouped by:
Power (From source to when it get's used)
Inputs (Not much here, keyboard and the handheld)
Motion (From the controller to drives to servos, incl encoders)
Feedback(All other sensors)
Spindle(VFD and everything downstream of it)
Other shit (ATC, grease, beer bottle opener etc)

Lot's of great feedback here. I'll try to understand everything said before committing to a plan. I've been labelling wires. Also decided to simply move to fuse out from the main junction box into its own separate box and just add another half-in conduit just for carrying power to the main box. This frees up all the room I need in the main junction box to work. I think I will be adding an additional 1in conduit to carry the extra conductors needed for the swivel head and rotaries.
  • spumco
  • spumco
01 Apr 2026 23:15
Replied by spumco on topic MotionMaster Upgrade

MotionMaster Upgrade

Category: General LinuxCNC Questions

@tommylight & NWE.... you two have better eyes than I do.

I think you two are right, and the bottom center thing is the rectifier and four drives.  Bundle of red & black wires prolly go out the the motors.
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