Fan control from temp and time

[ReefPig]

Hi,

Hopefully you can help shine some light onto something I've been beating my head against the wall on.
I'm trying to figure out how to program an output which I have a fan plugged in to which is controller based on both the temp of the tank, but also using the oscillate timer, as I occasionally want to move the air around in the tank room.

The challenge I seem to be bumping in to is that the IF statement doesn't support OR / AND, I understand the order of operations, but I cannot seem to get it working.

For the sake of "simplicity", I've created two virtual outputs, one for the timer and one for the temp, which I wanted to tie together in the real output.

• Virtual Output "CoolingTemp"
  • Fallback OFF
    Set OFF
    If Temp_1 > 27.5 Then ON
    Defer 000:10 Then ON
    If Temp_1 < 27.3 Then OFF

• Virtual Output "CoolingTime"
  • Fallback OFF
    Set OFF
    OSC 000:00/001:00/030:00 Then ON

• Real Output "Fan1"
  • Fallback OFF
    Set OFF
    If Output CoolingTemp = ON Then ON
    If Output CoolingTime = ON Then ON
    If Output CoolingTemp = OFF Then OFF
    If Output CoolingTime = OFF Then OFF

The behavior I want is

• If CoolingTemp or CoolingTime is on, then on.
• If CoolingTemp and CoolingTime is off, then off.

 

[RussM]

You do not need any virtual outputs for this. Using VOs is just adding unnecessary complexity.

[Fan1]
Fallback OFF
OSC 000:00/001:00/030:00 Then ON
If Temp_1 > 27.5 Then ON
If Temp_1 < 27.3 Then OFF

 

[ReefPig]

You do not need any virtual outputs for this. Using VOs is just adding unnecessary complexity.

[Fan1]
Fallback OFF
OSC 000:00/001:00/030:00 Then ON
If Temp_1 > 27.5 Then ON
If Temp_1 < 27.3 Then OFF

Thank you, clearly I was over complicating things!

I always seem to forgot that the logic has an implicit OR as it evaluates each statement and the last true statement wins.