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Post by baott569 on CODESYS OPC UA Security: HMI Client Not Receiving Server Certificate
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Hello everyone, I am currently using OPC UA in CODESYS with the security mode BASIC256SHA256 – Signed and Encrypted. The OPC UA Server is running on an RTE CX device, and the HMI is running on another computer. I have reviewed many CODESYS documents and successfully established communication when the security mode is set to None with Anonymous login. However, when security is enabled, the server does not provide its certificate for the CODESYS HMI client to trust. Interestingly, the client can send its certificate to the server, and UAExpert works normally, but the CODESYS HMI client does not receive the server certificate. Can anyone help clarify what I might be missing? I have been stuck on this issue for three days. If I missed or misconfigured any step, please let me know. I believe I am stuck at step 15 in the following CODESYS guide: Encrypting the Communication of a Data Source OPC UA Client https://content.helpme-codesys.com/en/CODESYS%20Communication/_cds_encrypt_communication_data_sources_opc_ua_client.html Thank you very much.
Last updated: 2026-01-06
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Post by kledo5 on What is the CFC editor (page oriented) "Add page" keyboard shortcut?
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Thanks for sharing this helpful tip with the tech community; I've learned so much new stuff. Let's take a break and play drift hunters, everyone! This top-notch racing game helps relieve stress after a tiring workday.
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SYSDIR 3.5.17.0
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Post by reinier-geers on SYSDIR 3.5.17.0
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I had a funcioning Directory read wit SYSDIR. Now ive got a new controller with Linux. and now i get only ordners Names. NO file Names !! WHY ? It workt already on a other with linux. But that was i think version 14
Last updated: 2026-01-06
Post by reinier-geers on SYSDIR 3.5.17.0
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I had a funcioning Directory read wit SYSDIR. Now ive got a new controller with Linux. and now i get only ordners Names. NO file Names !! WHY ? It workt already on a other with linux. But that was i think version 14
Last updated: 2026-01-06
SYSDIR 3.5.17.0
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SYSDIR 3.5.17.0
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Post by timvh on High resolution displays with 150% scaling causes CodeSys IDE to be blurry
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Instead of using scaling of 150%, can't you adjust your diplay resolution (Windows+i keys, then go to System > Display settings)?
Last updated: 2026-01-07
Post by timvh on Modbus TCP Server connection is ESTABLISHED but all holding registers are value 0?
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Are you sure you need to read holding registers? Have you tried reading input registers?
Last updated: 2026-01-07
High resolution displays with 150% scaling causes CodeSys IDE to be blurry
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High resolution displays with 150% scaling causes CodeSys IDE to be blurry
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History of Alarms
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History of Alarms
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Post by timvh on History of Alarms
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It is most likely related to the existing alarm log files in the Control Win. Depending on how you start up the Control Win, you can find the files in: C:\Users\<user name="">\AppData\Roaming\CODESYS\CODESYSControlWinV3x64\<unique id="">\PlcLogic\alarms\ Or C:\Windows\System32\config\systemprofile\AppData\Roaming\CODESYS\CODESYSControlWinV3x64\<unique id="">\PlcLogic\alarms\</unique></unique></user> Delete the files in this folder, download your project again and start the application. PS, if you have an older version of CODESYS, the files are in: C:\ProgramData\CODESYS\CODESYSControlWinV3x64\<unique id="">\PlcLogic\alarms</unique>
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Mithilfe von SysSocket eine Verbindung herstellen
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Mithilfe von SysSocket eine Verbindung herstellen
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