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Pacemaker real time problem

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Topic starter

Is it possible to run real time simulations longer than 24 hours?

Setting the Pacemaker Input Delay to -1 to indicate 'real time' causes my simulation to get stuck and stop responding after 24 hours. I have to use Windows Task Manager to close TRNExe (Status Not Responding).

Using a Delay of 12 seconds with the same time step of 1 minute, my one week simulation (168 hours) completes after the expected 33.6 hours without problems.

I am using Trnsys 17. The problem also occures after removing custom types, building and weather data, reproduced with the attached simplified *.dck/*.tpf. I also tried different simulation start and stop times, as well as a shorter timestep 0.15 minutes with the same result: After 24 hours Trnsys is not responding.

Edit: Can not attach zip/dck/tpf file

This topic was modified 2 years ago 4 times by HILcontroller
A_Weiss A_Weiss 19/04/2023 8:50 pm

@hilcontroller I put a Pacemaker and plotter in their own project in Trnsys18 and have it running right now. I'll let you know in 24 hours if it becomes unresponsive in Trnsys18 as well. I don't see any revision notes that suggest any changes with the pacemaker between Trnsys17 and Trnsys18. If it doesn't work in Trnsys18 either, I would email the issue and the simplified .tpf to your distributor for tech support. Unfortunately Trnsys17 is no longer (officially) supported, but your distributor may still be able to take a look if their availability allows.

Update April 20, 2023: My project is at 25.02 hours and still running. Either there was a bug fix between Trnsys17 and Trnsys18 that fixed the problem, or the problem is influenced by some component or simulation setting other than the pacemaker and online plotter.  

HILcontroller Topic starter 25/04/2023 1:34 pm

Thank you for testing it. Did you use the 32-bit or 64-bit Version of Trnsys 18?

I have also installed and tested it with the Trnsys 18 Demo Version (64-bit) and it did run longer than 24 hours. But after installing the full version of Trnsys 18 (32-bit) the simulation gets stuck at 24 hours again.
Trnexe not responding and I have to use the task manager to close it. I contacted the support.

A_Weiss A_Weiss 25/04/2023 5:00 pm

@hilcontroller I used 64-bit TRNSYS, version 18.04.0000.

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