# \#opc-server
**URL:** https://tech-community.robotics.abb.com/tag/opc-server/763.md
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## [OPC UA on Omnicore controller](https://tech-community.robotics.abb.com/t/opc-ua-on-omnicore-controller/11985)
**Author:** [@bran21](https://tech-community.robotics.abb.com/u/bran21)\
**Replies:** 1\
**Last updated:** [July 18, 2025, 5:13am UTC](https://tech-community.robotics.abb.com/t/opc-ua-on-omnicore-controller/11985 "2025-07-18T05:13:04Z")
I’m working with multiple ABB robots (Omnicore controllers) in RobotStudio and need help setting up the OPC UA communication with a TwinCAT PLC for I/O based handshaking between the robots. (where TwinCAT is the OPC serv…
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## [OPC UA certificate expired](https://tech-community.robotics.abb.com/t/opc-ua-certificate-expired/10921)
**Author:** [@CSSR\_Jerry](https://tech-community.robotics.abb.com/u/CSSR_Jerry)\
**Replies:** 0\
**Last updated:** [November 2, 2022, 6:05am UTC](https://tech-community.robotics.abb.com/t/opc-ua-certificate-expired/10921 "2022-11-02T06:05:03Z")
Hello, I want to connect the OPC UA server with RobotStudio Smart Component OPC UA Client. But the certificate valid date has expired. How to update this date. Thanks and BR.
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## [IRC5 OPC UA Server Port](https://tech-community.robotics.abb.com/t/irc5-opc-ua-server-port/10191)
**Author:** [@juansilva](https://tech-community.robotics.abb.com/u/juansilva)\
**Replies:** 1\
**Last updated:** [May 19, 2021, 7:08pm UTC](https://tech-community.robotics.abb.com/t/irc5-opc-ua-server-port/10191 "2021-05-19T19:08:49Z")
Over which protocol/port does OPC UA Server communicate with the IRC5 controllers?
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## [IRC 5 OPC UA Server turn message encryption off](https://tech-community.robotics.abb.com/t/irc-5-opc-ua-server-turn-message-encryption-off/10015)
**Author:** [@stefpender](https://tech-community.robotics.abb.com/u/stefpender)\
**Replies:** 6\
**Last updated:** [February 24, 2021, 3:24pm UTC](https://tech-community.robotics.abb.com/t/irc-5-opc-ua-server-turn-message-encryption-off/10015 "2021-02-24T15:24:53Z")
Is it possible to turn security certificates off? I want to use a client that does not support message encryption. Is this possible?
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## [Read and Write values to Robot OPC server in Manual mode](https://tech-community.robotics.abb.com/t/read-and-write-values-to-robot-opc-server-in-manual-mode/9496)
**Author:** [@Swathanandan](https://tech-community.robotics.abb.com/u/Swathanandan)\
**Replies:** 0\
**Last updated:** [May 12, 2020, 11:06am UTC](https://tech-community.robotics.abb.com/t/read-and-write-values-to-robot-opc-server-in-manual-mode/9496 "2020-05-12T11:06:26Z")
I use the ABB OPC server to read and write values to the robot controller. I cannot read or write values when the robot is in manual mode, this makes it hard to test robot programs in manual mode since I have to write v…
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## [IRC5 OPC Server and PCSDK version downward compatibility.](https://tech-community.robotics.abb.com/t/irc5-opc-server-and-pcsdk-version-downward-compatibility/9281)
**Author:** [@Reinhardt](https://tech-community.robotics.abb.com/u/Reinhardt)\
**Replies:** 0\
**Last updated:** [January 20, 2020, 8:34am UTC](https://tech-community.robotics.abb.com/t/irc5-opc-server-and-pcsdk-version-downward-compatibility/9281 "2020-01-20T08:34:56Z")
I tried to use IRC5 OPC Server and PC SDK in the robot project, but the project contains various version of robotware (6.05.00.00, 6.04.01.00, 5.61\_08.00.8001, 5.15\_02.00.2005, 6.01\_01.00.1010 and so on). I wonder if the…
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## [OPC server for infi90](https://tech-community.robotics.abb.com/t/opc-server-for-infi90/8940)
**Author:** [@Zoheb](https://tech-community.robotics.abb.com/u/Zoheb)\
**Replies:** 1\
**Last updated:** [July 2, 2019, 10:38pm UTC](https://tech-community.robotics.abb.com/t/opc-server-for-infi90/8940 "2019-07-02T22:38:26Z")
Hi, I am using infi 90 hardware and planning for OPC server to communicate with 3rd party software. Can anyone please share the latest version of OPC server available in compatibility with latest hardware and operating …