https://forge.codesys.com/forge/talk/Engineering/thread/d30c1ac279/2020-02-27T13:49:23.787000ZRecent posts to External implementation of a library2020-02-27T13:49:23.787000Z2020-02-27T13:49:23.787000Ztimvhhttps://forge.codesys.com/u/timvh/https://forge.codesys.comf1517ce19405c388a4528797236cd8be04d55d64

<div class="markdown_content"><p>I agree with Kevin.<br/> You can use the Network library (Use Case) for TCP/IP or UDP/IP communication.<br/> The CoDeSys V3 application can be both Client and Server.</p></div>

2020-02-27T13:49:23.695000Z2020-02-27T13:49:23.695000Zkberlinhttps://forge.codesys.com/u/kberlin/https://forge.codesys.come221a4a23adab3da9c62b5f09945eceb501ae861

<div class="markdown_content"><p>Hello,</p> <p>Have you looked into using OPC? The CoDeSys OPC server (Windows only) is free.<br/> If you want to implement an external library it's C or C++ that can be used.<br/> You also have the possibility to write a CoDeSys application that communicates using sockets. That might be an alternative for you.</p> <p>Best regards,<br/> Kristian Berlin</p></div>

2020-02-27T13:49:23.603000Z2020-02-27T13:49:23.603000ZJtRhttps://forge.codesys.com/u/jtr/https://forge.codesys.comaec75854e1b775e868933fe739330ce981beb22a

<div class="markdown_content"><p>Thanks for the information you provided.</p> <p>I'm working with a PhD student and we need to implement an interprocess communication with IEC 61131, so we need to implement an external library to implement such communication.</p> <p>For external implementation, which languages are allowed?</p></div>

2020-02-27T13:49:23.510000Z2020-02-27T13:49:23.510000Ztimvhhttps://forge.codesys.com/u/timvh/https://forge.codesys.comcf17c273eeafc6f97d3f26361dfd2443cda37609

<div class="markdown_content"><p>An external library is linked to the runtime system. This could be a C or IEC implementation.<br/> To link it to the runtime system you need the Runtime toolkit. You can purchase this from 3S-Smart Software Solutions or your local distributor.<br/> This is mainly done by OEM's like PLC or IPC vendors in which case the runtime is adapted to the platform (CPU/OS/Mem combination).</p> <p>Main question is why you want to create an external library?<br/> Could you inform us a little bit more about your application?<br/> Which hardware do you use?<br/> What functionality should the external library have?</p></div>

2020-02-27T13:49:23.417000Z2020-02-27T13:49:23.417000ZJtRhttps://forge.codesys.com/u/jtr/https://forge.codesys.com7eb4105c4b39ea549733d8f4ceb1ee27cc6c9683

<div class="markdown_content"><p>What do I need to create an external implementation of a library? How can i obtain it (or them)? What about licenses? </p></div>