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Yes, you would need two NICs
 

Hello 
I have managed to get a few motors running with etherCAT, but I still need a simple I/O system with analog out and encoder input, to use a mesa THCAD.

How is it feasible? Do I need a dual Ethernet card? 
The PCs I’m using have a single Ethernet port, so to run both mesa and ethercat I will need another Ethernet system, to have different NICs, right?

thank you.

Hi,

I think this is what you are looking for:
www.linuxcnc.org/docs/html/gcode/m-code.html#mcode:m66

Reference:
forum.linuxcnc.org/20-g-code/28990-setti...pin-from-gcode#56985

Hi,

The corbett install uses systemctl to start & stop the ethercat bus.
In debian 12 & 13 i use /etc/init.d/ethercat start.

At what time is your ethercat bus started, at pc boot time?

@Pcw,

Yes, that should work.
Script below works.

$ halcmd -s show pin halui.estop.is-activated
prints:
halui bit   OUT FALSE halui.estop.is-activated

Then get the FALSE or TRUE in a script:

Another possibility would be a script with halcmd  in a loop,
watching the desired pin/signal  (halcmd -s show pin spindle.0.on | grep TRUE)
(this could also turn off the spindle if LinuxCNC was not running)

Hi,

Here is a example project how to read & write to ethercat-master from any device.
I called the project twincat, because it is able to get and send info to the bus system.

The  ethercat-master source is slightly updated, It can print out more info as normal.
And the source had a nasty bug related to c code configuration wich i found.

This bug is still not resolved in etherlab master. I did tell them the bug, but i did not do a push request.

I think with this project you will be able to figur out how to use the TURCK device.
The project can print all details of the TURCK device. And you can send any data you want to the TURCK device.
1 bit send . Or 8bit, 16bit, and you can add more types if you need.