Beckhoff ADS connection missing

Twincat on and running (TMC and TPY file checked), but still ADS adds server button is missing, and Visual components need some installation.

New 4.9 Premium OLP installation, Windows 11, Twincat 3.1.4026.10 with user UM_RT.

Did it work with older VC and same TwinCAT installation? If you have installed a newer version of TwinCAT it might not be compatible.

Yes it works on previous installation (laptop). Normally ADS interface stay as same, but now looks like it is change and interface is not updated. Change back to older Twincat version is not a best solution for me.

Same issue for me, the Build 4026 of Twincat seems to be the only one supported on Windows 11…

Check the TwinCAT folder in Program Files. You need to find the TwinCAT.Ads.dll and copy it to the C:\Windows\Microsoft.NET\assembly\GAC_MSIL\TwinCAT.Ads.. folder and restart VC.

Edit:
Download this:
v4.0_4.4.0.0__180016cd49e5e8c3.zip (220.0 KB)

Extract it to:
C:\Windows\Microsoft.NET\assembly\GAC_MSIL\TwinCAT.Ads
(Create the TwinCAT.Ads folder if it’s not there)

The final path for the TwinCAT.Ads.dll should be:
C:\Windows\Microsoft.NET\assembly\GAC_MSIL\TwinCAT.Ads\v4.0_4.4.0.0__180016cd49e5e8c3\TwinCAT.Ads.dll

Heum Ok but under the Beckhoff folder installation there are more than 20 files with differents date & size (See image in attachment) :cry:
I’ll test them one by one, I’ll keep you in the loop

Hi,
Finaly it works.
I created a folder: “.NET” under C:\Program Files (x86)\Beckhoff\TwinCAT\AdsApi\TcAdsDll\

I copied this folder : v4.0_4.3.32.0__180016cd49e5e8c3 located under C:\Windows\Microsoft.NET\assembly\GAC_MSIL\TwinCAT.Ads
under this folder :C:\Program Files (x86)\Beckhoff\TwinCAT\AdsApi\TcAdsDll.NET

Strange but it works :slightly_smiling_face:

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If you really want to mess with the ads dlls directly (can’t recommend as it will just likely lead to other problems later), I would suggest to at least use the GAC util to register them properly to the global assembly cache instead of copying files around.