TIA Portal crashes with OPC UA interface - Siemens https://antomatix.com/community/main-forum/tia-portal-crashes-with-opc-ua-interface/ Antomatix.com Discussion Board en Wed, 20 May 2026 17:03:09 +0000 wpForo 60 RE: TIA Portal crashes with OPC UA interface https://antomatix.com/community/main-forum/tia-portal-crashes-with-opc-ua-interface/#post-16 Fri, 24 May 2024 16:13:38 +0000 Thanks for the quick response. Yeeees, it works. I uninstalled updates from May, rebooted my PC and OPC UA is now working on my 1212C PLC.

]]> Siemens SiemensGuru https://antomatix.com/community/main-forum/tia-portal-crashes-with-opc-ua-interface/#post-16 RE: TIA Portal crashes with OPC UA interface https://antomatix.com/community/main-forum/tia-portal-crashes-with-opc-ua-interface/#post-15 Fri, 24 May 2024 16:05:58 +0000 I had the same issue a few days ago. I tried to update TIA V19 to the latest update 2, but still, it was crashing.

I read the Siemens forum and tried suggestions for uninstalling late Windows updates.  That worked! I was able to add OPC UA interface and download it to PLC

]]> Siemens admin https://antomatix.com/community/main-forum/tia-portal-crashes-with-opc-ua-interface/#post-15 TIA Portal crashes with OPC UA interface https://antomatix.com/community/main-forum/tia-portal-crashes-with-opc-ua-interface/#post-14 Fri, 24 May 2024 15:54:32 +0000 I have added the OPC UA server to my project and all was ok until I added the OPC interface.

TIA portal crashes when I try to compile and download the project.  I tried TIA Portal V18 and V19.  PLC is S7-1200  with firmware 4.6

]]> Siemens SiemensGuru https://antomatix.com/community/main-forum/tia-portal-crashes-with-opc-ua-interface/#post-14