Logging Test Channels

[Lockie]

Hi 

I am struggling to log (and graph) a number of global variables that have been calculated in sequences.  Have got the graphing working but it wont log the data for me.  I have logging set up for raw data from inputs and am wanting to log the global variables for a few hours at a time so from what I can see logging may be better suited than  export sets.  

I have created a test channel for each variable I want to log (and graph) as below:

I then have a sequence running to make the variable a string in the channel

While (1)
      
      Graph_DT_Flow.AddValue(insertTime(DT_Flow,systime(),0))      
     
      Graph_kW.AddValue(insertTime(kW,systime(),0))    
     
      delay(1)
      
   endwhile

 

This allows me to graph the channels which is working but when I try to log them the column when opened in excel only has the heading.

 

If you could help with this it would be amazing!!

 

[AzeoTech]

Try using = instead of AddValue() if you are using a test D to A.  Also, use the timestamp from T8_Flue:

Graph_DT_Flow = insertTime(DT_Flow, T8_Flue.time[0], 0)

I'd even go so far as to put that code in the Event of T8_Flue instead of in its own sequence.