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Thread: Weird thing happening when coding to use seasonal table

  1. #1
    Regular Vistor
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    Weird thing happening when coding to use seasonal table

    Hopefully I'm not doing something daft, as I'm quite new to the Apex programming lark, however, I have been setting up some virtual outlets to make use of the seasonal table to manage my heaters turning on and off.

    The strange thing is that, when I go into Fusion to do the coding for the virtual outlet, Fusion is changing the physical amounts I am putting into the code.

    For example, here is the code I've entered for my NightHeat virtual outlet:

    1 If Temp < RT+-1.1 Then ON
    2 If Temp > RT+-0.6 Then OFF
    3 If Time 07:00 to 22:00 Then OFF

    However, when I upload the code to the Apex and then go back in to the code for the NightHeat virtual outlet, this is the code that has been saved:

    1 If Temp < RT+-1.0 Then ON
    2 If Temp > RT+-0.5 Then OFF
    3 If Time 07:00 to 22:00 Then OFF

    As you can see, the values in the first two lines of code have been altered by 0.1 of a degree when I saved it. Anyone have any ideas why this is happening, or is it an "undocumented feature" of the application ?

    Thanks in advance,

    Richard

  2. #2
    Regular Vistor
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    Also, just wondering whether I should preface this code with a "Set OFF" statement as line 1 ?

  3. #3
    Frequent Contributor zombie's Avatar
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    No set OFF is needed. You wont get hysteresis that way.

    Fusion shouldnt be changing values on you unless you types them in wrong (it will autocorrect some errors). What firmware version do you have? Does it still do it if you try it again now?

    You might be an engineer if...You have no life and can PROVE it mathematically.

  4. #4
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    I'm on the latest firmware - 4.31:5C14. I've checked this out a number of times and whenever I go in and change something with the code (for example putting a Set OFF in or taking it out) then the values of the RT lines will be changed by 0.1 degrees. It's very strange. It may not be a Fusion thing, because exactly the same happens if I go in via the traditional web browser route. I'm going to try making the change via the controller and see if the same thing happens, but it seems very strange behaviour as this is the only thing that changes, all the other coding I've done (and I've done quite a lot now !) has been saved as I've typed it.

  5. #5
    Regular Vistor
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    I've just tried updating my heater code and this is happening to me also. It seems to only do it when subtracting from the RT+ value. So RT+-0.5 will end up as RT+-0.4

  6. #6
    Regular Vistor
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    Hmmm, looks like we've found one of those undocumented features of the Apex

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