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  • stenly
  • stenly
19 Sep 2024 06:32 - 19 Sep 2024 06:57

EtherCAT Communication Issues, Lost Frames, Interruptions in Program Execution

Category: EtherCAT

Hi again.

After some testing, I can say I have had no more program interruptions. I've been playing around with the max velocities and accelerations of each axis and joint to find a sweet spot where the machine does not produce those unpleasant vibrations and knocking noises. There is, however, something still weird about it.

When running LinuxCNC and even some light app like a file manager or something, everything is in order. This may sound silly, but whenever there is a terminal open and I am interacting with it, the vibrations happen. So much so that when I have for example my .hal open in vim in the terminal and I use the mouse scroll wheel to navigate the file, the vibrations are in tandem with my scrolling of the wheel. Extremely weird in my opinion, yet I can definitely say it's not a joke.

Any idea what could be causing this? Granted, I am not too worried, as I am not planning on having any terminal (or anything for that matter) be opened alongside LinuxCNC when the machine is in production.

PS. Could anyone help me out in making Axis GUI not set the max velocity to the maximum allowed when I start LinuxCNC? This behavior could be dangerous if someone were to run a poorly written program, so I'd like to have it set to a smaller value by default on startup.
  • rajsekhar
  • rajsekhar
19 Sep 2024 05:09
Replied by rajsekhar on topic Error while Running Linuxcnc

Error while Running Linuxcnc

Category: Driver Boards

Well, I run sensor in terminal and output is in below:

==============================================================
raycnc1@debian:~/Desktop$ sensors
coretemp-isa-0000
Adapter: ISA adapter
Package id 0:  +56.0°C  (high = +84.0°C, crit = +100.0°C)
Core 0:        +56.0°C  (high = +84.0°C, crit = +100.0°C)
Core 1:        +54.0°C  (high = +84.0°C, crit = +100.0°C)

acpitz-acpi-0
Adapter: ACPI interface
temp1:        +16.8°C  (crit = +20.8°C)
temp2:        +27.8°C  (crit = +119.0°C)
temp3:        +29.8°C  (crit = +119.0°C)

radeon-pci-0100
Adapter: PCI adapter
temp1:        +60.5°C  (crit = +120.0°C, hyst = +90.0°C)

raycnc1@debian:~/Desktop$
=================================================================
Now the max jotter is 7000ns (servo thread) and 11880ns(base thread). If any thing abnormal in above data, please reply.

I am waiting for the spike to happen again and check sensor data again.
 
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