[esp-r] How to get the node temperature?

[牛犇]

  I correctly define a PCM model, and it works right.But I have another question for the result.could anyone  help me？
      I have defined the PCM in the internal layer of a multi-Layer wall.  If I want to export a graph of the pcm’s internal\middle\external node temperature. How can I deal with it ?     
      Result analysis--Graphs--Time:var graph--Temeratures--surf node T? Does it right?   When I put it, it tell me :This selection only available with a save option 3 result-set.   
 Best wishes.                                                   
                                                                                        Niu  Ben  
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