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VariousNote » History » Version 12

Michel Condemine Admin, 05/09/2023 12:11 PM

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# VariousNote
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## ASCII Table
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![](http://www.openopcua.org/redmine/attachments/download/3846/ASCII_TABLE_Small.png)
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## LUA





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### Documentation





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https://www.lua.org/pil/contents.html





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### Video





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Full training video[Training: 3h40](https://www.youtube.com/watch?v=1srFmjt1Ib0)





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## Change Windows services Timeout





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Just add in the registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control the following entries





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### Timeout on Startup





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  REG_DWORD ServicesPipeTimeout with a value in milli-second





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![exempel for 180sec](clipboard-202304240609-alrzc.png)





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### Timeout on stop





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  REG_SZ WaitToKillServiceTimeout with a value in milli-second





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![exempel for 180sec](clipboard-202304240608-jz0qa.png)





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[More MS Site](https://learn.microsoft.com/en-us/troubleshoot/windows-server/system-management-components/service-not-start-events-7000-7011-time-out-error?source=recommendations)





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# OPC UA implementation





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OPC UA application can be implemeneted with any language that support TCP sockets. So..





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## C/C++





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This is our choice. C/C++ offer the most stable and largest developers community. 





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C/C++ runs on any hardware and it offer the best of the best in footprint control and performance.





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Agan a long list of benefit i wish to high-light its multiple inheritance capabilities. 





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## NodeJS





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A new language well adopted but mainly web based oriented. 





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Here a [Pros/Cons](https://javascript.plainenglish.io/the-pros-and-cons-of-node-js-web-app-development-a-detailed-look-c91a22f013c#:~:text=The%20Pros%20and%20Cons%20of%20Node.js%20Web%20App,Preferred%20for%20cross-platform%20app%20development%20...%20%C3%89l%C3%A9ments%20suppl%C3%A9mentaires) 





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I just high-light the first disadvantage : Unstable API





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## Java





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An object oriented language with single inheritance. I come with a huge footprint.





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## CS





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This is the Microsoft Germany choice. We can understand it. As JAVA it comes with a huge footprint.





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A large community. But it really runs properly only on Windows even if something seems possible on Major Linux.





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If you plan to use the so called OPC Foundation SDK. I suggest that you carefuly read the RCL licence.





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## Python





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A very popular language now a day. With a large community. The current Open Source ASYNIO offer a good implementation, client side.





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Some feature are missing but it's in progress.