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  • 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.
  • SwitchWitch
  • SwitchWitch
01 Apr 2026 22:16 - 01 Apr 2026 22:19
Replied by SwitchWitch on topic Ethercat Setup help needed for beginner

Ethercat Setup help needed for beginner

Category: EtherCAT

Normally it should be much cheaper to use Beckhoff Interfaces as long as you buy them cheap from ebay or kleinanzeigen (here in germany). This is one of the main benefits of an ethercat setup.
  • NWE
  • NWE's Avatar
01 Apr 2026 21:24
Replied by NWE on topic QTPLASMAC integrated cad/cam

QTPLASMAC integrated cad/cam

Category: Plasmac

Here is updated nesting using sparrow algorithm. Im also including the github repo for anyone who wants to use the software or work on the software. 

-- snip --

Here is the github link github.com/xxhalflifexx-source/plasmacam
-- snip --

unfortunately, I can't find this one on github
  • NWE
  • NWE's Avatar
01 Apr 2026 21:09
Replied by NWE on topic MotionMaster Upgrade

MotionMaster Upgrade

Category: General LinuxCNC Questions

Brushes, that makes the motors Brushed DC, and from what i recall the drives for those are hard to find, so it does pay off to check if the existing ones are ok.

Ah, I think you're right. The big box with the Fagor computer in the top half, I can see what appears to be an analog brushed-dc multi-axis servo amplifier + psu in the bottom half of the box. With two fans attached.
  • tommylight
  • tommylight's Avatar
01 Apr 2026 20:50
Replied by tommylight on topic MotionMaster Upgrade

MotionMaster Upgrade

Category: General LinuxCNC Questions

Brushes, that makes the motors Brushed DC, and from what i recall the drives for those are hard to find, so it does pay off to check if the existing ones are ok.
  • spumco
  • spumco
01 Apr 2026 20:35 - 02 Apr 2026 00:34
Replied by spumco on topic MotionMaster Upgrade

MotionMaster Upgrade

Category: General LinuxCNC Questions

You should be able to get the electrical information off the drives without removing them.  Might need a mirror to see the side of the drive.

Make & model number of the drive would be helpful.  Photo of any data/stickers would be helpful.  Photo of data-plate on motors would be helpful.

From the existing photos, the drive(s) appear to be a module-type arrangement.  There is a single AC to DC power stage part, and separate (smaller) control parts for each servo motor (axis motor).  Replacement drives, if you go that route, will most likely be individual drives that each have built-in ac rectification.

That's why your 'drives' look like one big box, and replacement drives you might have seen on the internet or forum posts look like separate boxes.

The reason I mentioned not using the existing drives is that those drives most likely require 3-phase power supplied to them.  You/we will know more once you get a drive model number off them and (hopefully) find a user manual.

Some 3-phase equipment will work when supplied single-phase power, albeit at reduced output.  However, not everything has that capability.

If you have 60 amps of single-phase 230VAC available, that translates to ~36A of 230VAC 3-phase using a Phase Perfect "10hp" phase converter.  Rotary phase converters may be a bit different, but that should give you a ball-park power budget.

If your existing servo drives require - guessing here - 30 amps, that only leaves ~6A for a spindle motor.  So you can see why it's important to know what they require before you can decide to keep them or not.

For wiring/electrical software, I like TinyCAD.  But I'm not a pro, and other people have other software they prefer.  Do a search on the forum - I think there was a discussion last year about schematic-building software.

EDIT
I was wrong, disregard my ramblings about the drives.

Still need to figure out power budget, but based on the size of that rectifier capacitor I don't think those are really high-amp drives.
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