Can someone post their Settings for PID control and wavefor?

[GeekSpirits]

I am trying to get my PID control working and it would be great to see someone else's setting along with the waveform.

[oakbarn]

I do not have what you need but I found this helpful in trying to understand PID and the factors:
http://www.omega.com/temperature/z/pdf/z115-117.pdf

[JImram]

PID settings depends on a hardware so it can be very different for different systems. I have heating with aluminium plate under the bottom of a brewing kettle (80l). Enclose you will find my testing waveform. It is in Celsius, "Varna" means temperature inside the kettle (left axis), "Deska" means heating plate (right axis).

My PID settings is:
PID sample period: 20s
Output period: 20S
Proportional: 18
Integral: 0
Derivative: 200

You have to start with proportional a then add integral (If it is useful) and then add derivative. It is not complicated to optimize it, but it can be time consuming.

Test 3.7.0.jpg (84.08 KiB) Viewed 3358 times

[GeekSpirits]

Thanks for posting. I was having a real hard time getting my PID output to work (I have a handheld scope). What I ended up doing was:
1. Create a new process with one state
2. First do direct control of the output so I could make sure it turned on and off which it did.
3. Enable duty cycle mode and then make sure the output toggles.
4. Enable hysteresis mode and make sure it worked correctly
5. Enable PID and play with it. I finally got it to toggle. I have to play with the temp probe to get it fed back to controller, but I can now mimic it controlling stuff.

Now comes getting my pulsed to DC working so I can use proportional valves.