https://forge.codesys.com/forge/talk/Engineering/thread/40b2f4dab0/2020-02-27T14:00:58.415000ZRecent posts to Placeholder and Library profile2020-02-27T14:00:58.415000Z2020-02-27T14:00:58.415000ZStrucchttps://forge.codesys.com/u/strucc/https://forge.codesys.com71e50172aeb639ca4facc314d9b487f1d5d363d4

<div class="markdown_content"><p>I'm in a similar situation, I think it's quite usual to manage simulation and real "live" environments together.</p> <p>What I did was:<br/> <strong>- One project, with 2 (or 3 devices)</strong><br/> - All the common project code is defined in the POU tab (in your case, you can add a library manager there as well, for all the common referenced libraries)<br/> - For the simulation device, the simulation library is included (in the library manager of the device/application tree), and some extra programs are added to the main task for simulation purposes<br/> - For the real device, IO is assigned, and the real code is used (the real hardware library is included in the application tree)<br/> - (I added a 3rd device, it's a PLC panel, but without the IO from the real technology, to test the UI experience)</p> <ul> <li>When I do the development, and simulation, I use my PC as a PLC, and use some extra code to simulate the inputs</li> <li>Sometimes I test the UI on the real touch panel</li> <li>And if everything is fine, i upload the project to the real system... and debug </li> </ul> <p>Hint: If you have multiple devices, and applications, just right click on the one, you'd like to work with, and "Set active application"...</p></div>

2020-02-27T14:00:58.164000Z2020-02-27T14:00:58.164000Zdavechttps://forge.codesys.com/u/davec/https://forge.codesys.comf7d78a016b77ffc3cc8e20f3a86cafb1186c71dd

<div class="markdown_content"><p>Hi,<br/> we have 3 projects<br/> 1. HardwareLib (containing only methods to interact with hardware)<br/> 2. SoftwareLib (referencing to latest version of HardwareLib)<br/> 3. MainProject (referencing to latest version of SoftwareLib )</p> <p>To test the whole project (MainProject + Libraries) we created a FakeHardwareLib to mimic the real hardware.<br/> Each time we need to open SoftwareLib, replace HardwareLib by FakeHardwareLib, re-install the SoftwareLib and re-compile the MainProject<br/> We did a python script using ScriptEngine to automate this operation but we are now wondering if there is a better way of doing the same process maybe with Placeholder and Library profile<br/> We looked at the documentation and in Codesys forum, did some tests, but we can't figure out exactly how to manage that</p> <p>Do you have an example or perhaps more detailed documentation on that subject</p> <p>Regards,<br/> Dave</p></div>