text: <s>[INST] FactoryTalk Optix: Any good suggestions for simulating tags while developing a project in FTOptix? I have reached a point with my project where testing is needed to see if the functionality is working as intended. [/INST] You can always creating variables and objects in the Model folder, set default values to them, and emulate with that. You can later link them to live PLC tags when the simulation is complete. However, I suspect you are wanting to simulate your PLC application and link your Optix emulated runtime to that so that you have 'live' values and logic. If that's the case, Logix Echo is what you are looking for. Unfortunately, you would have to pay for the full version. There may be a trial version available, however. \n </s>