Why the SV curve in auto roast??

[prmango43]

First auto roast using V4.0.2 and got confused as was expecting to see the background BT curve, but instead there was the SV curve. It took me several hours to determine why the BT curve was not showing -- to show one has to click "SHOW". OK got it, but why is the SV curve showing? Control has SET SV as background and PID input set as BT.

Images/Files attached: control settings (SVset021226.png); profile (profile021226.png); background settings (bkbg021226.png); roast log (26-02-12_1628.alog.txt)

[26-02-12_1628.alog.txt](https://github.com/user-attachments/files/25277675/26-02-12_1628.alog.txt)

[MAKOMO]

Unclear what machine and setup you are using. The SV curve is most likely drawn as you have an extra device of type "PID SV/Duty %" (menu Config >> Devices, 2nd tab "Extra Devices") which has the Curve visibility flag ticked.

[prmango43]

Thanks. Can't find note where I was testing this action, but believe I had reset that dialog -- appears not or maybe I inadvertently reloaded an old settings file and didn't check to make sure it had been cleared. Being able to show SV is useful though for evaluating the profile. It also demonstrates that it may be necessary to have a clear alarm table so as to not interfere with auto functions.