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The Index signal is short, in EtherCAT it is only one servo cycle long so you will most likely miss it, or the linuxcnc tools will miss it. Unless you happen to position the encoder exactly where the index signal is, then you can see it on the IndexByte.
Use halscope to watch the index signal in linuxcnc. Set sample time short enough to capture all data.

To get an idea of what is involved, have a look here
forum.linuxcnc.org/26-turning/41498-scha...cnc-retrofit?start=0
and here
forum.linuxcnc.org/show-your-stuff/32784...ro-slant-15-retrofit

Estou realizando um projeto de modernização da minha máquina não nem por onde começar. Gostaria de ajuda.Abaixo os detalhes da máquina Torno CNC traub modelo TNS/60 com 4 eixosFUSO PRINCIPAL 34.5 Kw c.c independente Eixo z servo 10n.m Bem antigo( irei pegar as configurações)Eixo x 8n.m Torre de ferramentas 12 posições Máquina toda hidráulica Eixo x 10n.m.
Comecei este tópico somente para darmos um kickoff no projeto, qualquer pergunta com relação ao projeto posso responder.

Ps. O comando é um tx8d

Obrigado

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Are you using only EtherCAT drives?
Do you have any Mesa card or use parallel port?
Are the encoders in any way talking back to LinuxCNC, be it through Mesa or Pico or parallel port or any other interface?
If using EtherCAT with no feedback to LinuxCNC, no tuning in LinuxCNC.

Most probably from interference on the inputs, caused by spindle or drives motors, subsequent to using unshielded cables or no grounding.
First check if the power supplies and machine is grounded.

Give it a try, it might just work !
Jokes aside, been many, many years since i had a bad ISO download, so if your internet provider has not throttled downloads, all should be fine.

Updated Lenovo Yoga 370 info
forum.linuxcnc.org/18-computer/54369-use...hernet-boards#313956

I connected an encoder that has index, but I don't see any activity regarding that pin.

I could not find online your servo drive manual. But found CMC manual for brushed DC motor with tachometer input.

ttps://www.artisantg.com/info/Cleveland_Motion_Controls_SDB_Series_Manual.pdf?srsltid=AfmBOorzCltvtjGyzWiOyaa6-XFNoLaBcmwPmFUnsA8L5EootgrmcSKG I am assuming this manual is similar to yours. If it is than you need to set the four digital inputs  SBY, OSW, SW1 AND SW2,  for the motor to spin in both direction  the inputs must be set to satisfy the operational conditions of the drive (digital inputs require 24vdc power)

Did you find a solution?  What version of LinuxCNC are you running? 
I have a similar issue.  It was running fine with LinuxCNC version 2.8, but after upgrading to 2.9.3 I get "PREOP E" errors and the drives won't enable.  It seems to be random which drives go to PREOP E and which ones go to OP.  Restarting LinuxCNC multiple times gives random results.
I get sync manager timeouts and failures to write SDO's.

Hi! I had a friend over who tried to help me but with no success. Do you recomend some working usb wifi-card. The ax200 Intel chip was not so good

I am just getting started and have been working through the excellent series of videos by Joe Hildreth.  These videos are now 6 years old and so I think things may have moved on.  When it comes to downloading the latest version from the Downloads page, Joe recommends checking the download with a check sum using md5sum or sha256sum.  On the video the checksum is on the download page, as is a link to zsync - the method of downloading he recommends.  This is not on the current downloads page.  Do I still need to check my download (to a flash drive) before i install it on my new control computer?  If this has been covered elsewhere I am sorry but I have tried searching and cannot find an answer.

forum.linuxcnc.org/qtpyvcp/48401-py3-pro...-doc-lcnc-2-9#287437

it might be a good idea to update the first post in this thread with a comment after the following the line mentioning that metric users need to change from G20 to G21.

[RS274NGC]
RS274NGC_STARTUP_CODE = F10 S300 G20 G17 G40 G49 G54 G64 P0.001 G80 G90 G91.1 G92.1 G94 G97 G98

Problem solved.
Nothing to do with the drive and your setting were right on.
I was reading another thread about 'Whitch mode is best for new setups' it has alot of interesting stuff. still ready it as I'm hoping to see how they resolve tying the encoder feedback into linuxcnc.
Any ways in that thread they were talking about missed steps due to step and direction times being to small. I seen the number they were talking about ( in the thousands) and mine are just 400 and 800. Mine was a bit jerky and i figured maybe a bearing I would have to replace later, but suddenly made sense if its missing steps then it would be jerky as it missed and picked up again. I must have been loosing massive amounts of steps.. I changed my numbers to the below and now it moves smooth and the right distance.

Step Time=2000
Step Space=2000
Dir Hold=50000
Dir Setup=2000

I am so happy to me past this hurdle. Now on to the next.

I thank you so much for the help and efforts. unfortunately I am sure you will hear from me again when I hit the next wall.

I'm So thankful you guys are here for us that are struggling.

Thank you, I'll try it tomorrow