Gmanjimbo (Customer) asked a question.
P2000 PID with P2-08THM HOW
I have a P2000 with a P2-08THM thermocouple module. I have yet to figure out how to setup a PID loop to control a heater. In the Data view the temperatures of the TC's are already there, but have not figured out how to actually get that to show up in logic. Anyone got any pointer? (Bear with me, my brain has low horsepower :) Thank you.
https://www.youtube.com/watch?v=022LpImiLfQ&ab_channel=GarryShortt
^^^
+1
At Garry's site here:
https://accautomation.ca/
You can find informative video/series on most plc concepts/AD platforms. If you don't find what you are looking for, ask Garry - either here or at the site linked above.
Thank you Kewakl
https://accautomation.ca/productivity-1000-series-plc-pid-instruction/
https://accautomation.ca/productivity-1000-series-plc-pid-ramp-soak-instruction/
The above posts may help you out.
Regards,
Garry
Thanks Gary. Your site is very helpful indeed. Your headless C-more video was great and I was able to get that going. I actually had watched your PID video before posting my question, so I probably should try to elaborate a little. From your video I see that you used the scaling instruction for the thermocouple, which I will watch that a few more times, BUT I was wondering, since I currently have temperature readout in the data view and I have not done anything other then hook up the TC, Is there a way to use that temp readout since its already there, or is the scaling instruction my only option?
Hi Gmanjimbo,
The scaling instruction is used on the PID output because we are taking the PID output and using this as a time proportional control for the heater. (On/OFF based upon a control period.)
This is explained on the website in the following post:
https://accautomation.ca/productivity-1000-series-plc-pid-instruction/
You can use the temperature readout directly for any display.
Regards,
Garry
Now I understand. Thank you again.