12/27/2022 9:55 AM | |
Joined: 11/30/2022 Last visit: 10/17/2023 Posts: 21 Rating:
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Morning all, I hope you have all had a good break,, i'm looking at altering a existing program to assist a pump set, what i would like to do is the following: 1, add temperature control 2, add time delay not sure how to go about it, the existing program works a treat however what i would like to do is once the input receives a command to start the pump set then a timer would count down from 5 Minutes, once this is complete then if the temperature is below say 50 degrees to bring the additional pump on and run it until the temperature increases above 55 degrees then shut down until required, and revert to the original timer function Im thinking a PT100 sensor to be used to measure the temperature, the reason for the 5 minute delay is just to give the 1st pump chance to get going as if there is storage of heat available to disperse this first, so i'm not short cycling a pump set. Thanks in advance for any help or pointers, i have attached the original program Happy New year to you all! Update is that I have written the program and it seems to be ok, i won't fully know until i have uploaded it and tested it on the bench, if anyone can have a look and let me know it the program looks ok and if i have the temp block correct. also the temperature PT100 would need to go into a Logo AM2 AQ EXPAN MODULE 0/4-20MA 2AQ 0-10V as this is the only one i can see that does Analogue outputs to a PT100 If someone can confirm this i would be truly grateful. Atb Neil AttachmentBoiler sequencer control.zip (419 Downloads) |
Last edited by: nDabbers at: 12/29/2022 09:21:02 |
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