changing ethercat SDOs using user panel

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mehdidadash
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09 Mar 2023 09:38 #266184 by mehdidadash

changing ethercat SDOs using user panel was created by mehdidadash

is it posible to change drives SDOs using user panel ?
i mean, sending a comand using hal
for example :
a button that sends this comand :

ethercat upload -t int32 -p 0 0x2001 0 0

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andypugh
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10 Mar 2023 12:42 #266284 by andypugh

Replied by andypugh on topic changing ethercat SDOs using user panel

Maybe....

You can set buttons that set a HAL pin to run MDI commands, then the MDI command can be a user-defined M-code that can be any executable file. It's a bit convoluted, but it works.
linuxcnc.org/docs/stable/html/config/ini....html#_halui_section
and
linuxcnc.org/docs/stable/html/gcode/m-code.html#mcode:m100-m199

Alternatively the GladeVCP and probably QTVCP allow you to embed code directly in the button.
linuxcnc.org/docs/stable/html/gui/gladev...on_widgets_reference
And, any normal UI element can call handler code in the backend file to do the same thing, possibly with the Python os.system("ethercat upload -t int32 -p 0 0x2001 0 0")

Or, you could use a custom HAL component (I wuld probably use Python Userspace) that has HAL pins that connect to the buttons and sends the commands when the pin values change. This approach would (probably) work best for physical hardware buttons, though the MDI_COMMAND approach can also work that way.

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rodw
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12 Mar 2023 12:52 #266488 by rodw

Replied by rodw on topic changing ethercat SDOs using user panel

My understanding is in the ethercat world SDOs are set on startup and PDOs can be dynamically changed.
So it not possible to change SDOs at runtime

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mehdidadash
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15 Mar 2023 22:20 #266791 by mehdidadash

Replied by mehdidadash on topic changing ethercat SDOs using user panel

Thank you. It will help for sure.

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mehdidadash
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15 Mar 2023 22:26 #266792 by mehdidadash

Replied by mehdidadash on topic changing ethercat SDOs using user panel

The idea came to my mind after i find this :
github.com/sittner/linuxcnc-ethercat/blo...c/lcec_deasda.c#L175
Ecrt_slave_config_sdo8
Changes 0x6060 sdo in delta asda c file.

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db1981
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16 Mar 2023 08:05 #266808 by db1981

Replied by db1981 on topic changing ethercat SDOs using user panel

these lines are executed at config time (preop state), in front of starting the realtime thread (op state) .

You can readout sdos per terminal everytime, for writing there is more complex code needed.

github.com/steup-engineering/linuxcnc-et.../lcec_class_rt_sdo.c

github.com/steup-engineering/linuxcnc-et.../src/lcec_nanopd4e.c

this is an slave, where i added all neccesary pdos for drive tuning/setup , to change them online from lcnc.

With etherlab master you have to know which sdos you want to access and must add memory addresses for them at setup state....

The following user(s) said Thank You: mehdidadash

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mehdidadash
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16 Mar 2023 12:11 #266831 by mehdidadash

Replied by mehdidadash on topic changing ethercat SDOs using user panel

may i use this codes ?
lcec_class_rt_sdo.c
i am working on this field for 6 months and to be honest, i know nothing yet.

because i know nothing about c language. i am using your cia402 library now, but is there a way to link this lcec_class_rt_sdo.c to cia402.comp ?

db1981 wrote:
these lines are executed at config time (preop state), in front of starting the realtime thread (op state) .

You can readout sdos per terminal everytime, for writing there is more complex code needed.

github.com/steup-engineering/linuxcnc-et.../lcec_class_rt_sdo.c

github.com/steup-engineering/linuxcnc-et.../src/lcec_nanopd4e.c

this is an slave, where i added all neccesary pdos for drive tuning/setup , to change them online from lcnc.

With etherlab master you have to know which sdos you want to access and must add memory addresses for them at setup state....

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gueee78
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26 Aug 2023 09:39 #279004 by gueee78

Replied by gueee78 on topic changing ethercat SDOs using user panel

Hi mehdidadash!

did you find a solution for your demand, or did you gather any new knowledge?

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