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  • spumco
  • spumco
27 May 2026 01:29
Replied by spumco on topic Stepperonline A6 Ethercat - Digital IO [SOLVED]

Stepperonline A6 Ethercat - Digital IO [SOLVED]

Category: EtherCAT

Success.

My suspicions were correct - there are undocumented parameters to set in the drive before the digital outputs can be activated.

Stepperonline advised the following:
Warning: Spoiler!


Parameters C04.59 and C04.5A are not in the manual.  They are, however, visible in the tuning software (see attached screenshot).

I've attached a bare-bones xml file which will create HAL pins for all five digital inputs, and two of the three digital outputs.  The last output - DO3 - is reserved for the motor brake and commented out.

As usual, thanks to everyone for helping out.  

MODERATORS - please change title to:  Stepperonline A6 Ethercat - Digital IO [SOLVED]
  • rodw
  • rodw's Avatar
26 May 2026 23:49
Replied by rodw on topic need help with ethercat vs mesa

need help with ethercat vs mesa

Category: General LinuxCNC Questions

You can use RS485 Modbus to control your VFD so its not really a problem until you come to the encoder if its needed. Threadmills are a lot easier than rigid tapping.
  • grossm5000
  • grossm5000
26 May 2026 23:48
Replied by grossm5000 on topic Differential encoder hard crashes the PC MESA7i77

Differential encoder hard crashes the PC MESA7i77

Category: Driver Boards

Also, as of now everything is new on the PC. I have an older dell optiplex I can play with if we think thats the issue…
  • grossm5000
  • grossm5000
26 May 2026 23:37
Replied by grossm5000 on topic Differential encoder hard crashes the PC MESA7i77

Differential encoder hard crashes the PC MESA7i77

Category: Driver Boards

here are my hal and ini files. I only have a few buttons working at the moment so it should be pretty generic so far
  • PCW
  • PCW's Avatar
26 May 2026 22:45
Replied by PCW on topic Differential encoder hard crashes the PC MESA7i77

Differential encoder hard crashes the PC MESA7i77

Category: Driver Boards

OK that sounds more like a hal issue or maybe hardware (Memory?) issues on the PC

Can you post your hal/ini files?

 
  • grossm5000
  • grossm5000
26 May 2026 22:30 - 26 May 2026 22:51
Replied by grossm5000 on topic Differential encoder hard crashes the PC MESA7i77

Differential encoder hard crashes the PC MESA7i77

Category: Driver Boards

  When I say crash, I mean the computer shuts down and reboots.

The 7i77 is powered by an external 5vdc supply. Here are some pictures of the wiring 


I am getting 5vdc between the screw labeled vcc and 0vdc. Interestingly, I can start LinuxCNC with the encoder hooked up and it will not crash unless I move the hand wheel. I used halshow to verify other buttons are working (joystick, start, stop, etc.)

power supply for 7i77 is 15w/2.4 amp
  • PCW
  • PCW's Avatar
26 May 2026 21:35
Replied by PCW on topic Differential encoder hard crashes the PC MESA7i77

Differential encoder hard crashes the PC MESA7i77

Category: Driver Boards

Can you power the 7I77 from an external 5V supply?

When you say crash, what actually happens?


 
  • grossm5000
  • grossm5000
26 May 2026 21:15
Replied by grossm5000 on topic Differential encoder hard crashes the PC MESA7i77

Differential encoder hard crashes the PC MESA7i77

Category: Driver Boards

OK guys, 
Finally back on this again. Got LinuxCNC stable, ended up being a failing hard drive issue. Got my 6i25 and 7i77 boards back from MESA, everything checked out ok. 
I am still struggling on the MPGs. Still crashes the computer when I scroll the MPG handwheel. Its a differential encoder, plugged into encoder #3 slot on the 7i77. I have tried a new MPG, same result. I would say its safe to say the MPG hardware is not the issue. 
  • PCW
  • PCW's Avatar
26 May 2026 20:25
Replied by PCW on topic Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

Category: Plasmac

Also make sure all power management is disabled on the host PC
Similar issues can come from Ethernet (EEE) or PCIE power management
  • spumco
  • spumco
26 May 2026 19:52
Replied by spumco on topic Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

Category: Plasmac

I had a problem with a Mesa board disconnecting a couple years ago.

Turned out it was a bad/weak DC-DC power supply.  Voltage would drop intermittently, causing the Mesa to reset and I'd get the 'error finishing read' nightmare.  Looked like a network issue, but @PCW helped me diagnose it as a power problem.

Maybe double-check whatever is powering the Mesa and see if it's dodgy.
  • MaHa
  • MaHa
26 May 2026 19:16
Replied by MaHa on topic Jumping motion with XHC-WHB04B pendant

Jumping motion with XHC-WHB04B pendant

Category: Basic Configuration

Just talking from my experience, on my machine i got good result with ilowpass / multiply stepsize

setting for all axis:
MAX_ACCELERATION = 1100.0

If set Stepsize on mpg to 100 or less, it works very good. Even stepsize 500 worked, larger was not safe.
jog-counts and jog-scale can be set for all axis, only the enabled axis will move finally.
This config was made many years ago, thats all i remember

# The stepsize selected is always multiplied by 0.001
# ilowpass − Low-pass filter with integer inputs and outputs
# mult2 − Product of two inputs
loadrt ilowpass
loadrt mult2
addf ilowpass.0 servo-thread
addf mult2.xhc servo-thread

# Lowpass Filtering for mpg
setp ilowpass.0.gain 0.01

# IMPORTANT to keep ratio ilowpass.0.scale mult2.xhc.in1
setp ilowpass.0.scale 1000
setp mult2.xhc.in1 0.001

net jog-counts_in  <=  xhc-hb04.jog.counts => ilowpass.0.in
net jog-counts_out <=  ilowpass.0.out      => joint.0.jog-counts axis.x.jog-counts joint.1.jog-counts axis.y.jog-counts joint.2.jog-counts axis.z.jog-counts
net jog-scale      <= xhc-hb04.jog.scale   => mult2.xhc.in0
net scale_div_1000 <=  mult2.xhc.out       => joint.0.jog-scale axis.x.jog-scale joint.1.jog-scale axis.y.jog-scale joint.2.jog-scale axis.z.jog-scale

# Switch to mode.manual
net man_mode       <= xhc-hb04.button-mode => halui.mode.manual
 
  • aaron
  • aaron
26 May 2026 18:36
Replied by aaron on topic Setting up a touch screen

Setting up a touch screen

Category: General LinuxCNC Questions

The Default Axis?
  • zack
  • zack's Avatar
26 May 2026 17:38
Replied by zack on topic Setting up a touch screen

Setting up a touch screen

Category: General LinuxCNC Questions

Which interface for linuxcnc u using?
  • zack
  • zack's Avatar
26 May 2026 17:31
Replied by zack on topic Axis 2 - touchscreen version of old friend

Axis 2 - touchscreen version of old friend

Category: AXIS

still interested in taking a tcl touch screen version of axis further any interest?
will like to add pause routine as per 3d printers etc
  • ChrisB_II
  • ChrisB_II's Avatar
26 May 2026 16:05
Replied by ChrisB_II on topic LinuxCNC mit ProbeBasic bleibt einfach setehen

LinuxCNC mit ProbeBasic bleibt einfach setehen

Category: Deutsch

Ich habe jetzt getestet mit und ohne Erdung des Computers - das Problem trat natürlich nicht auf! Ich versuche es später noch mal, mit laufender Spindel...
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