9/12/2011 3:35 PM | |
Posts: 22 Rating: (0) |
Hello again, Marcjan. I'll look at that now, Thanks. Matt |
9/12/2011 8:27 PM | |
Joined: 3/4/2009 Last visit: 10/28/2020 Posts: 57 Rating: (5) |
Hi! Is the shield of the cable connecting Pt100 to AI grounded? Is the (-) of the power supply grounded? |
9/13/2011 1:07 PM | |
Posts: 22 Rating: (0) |
Thank you everyone! I did indeedsee that application Marcjan posted,that averages 3 samples, I missed the single AI and thought it was something different.. Lastnight I included that example, and the hysteresis circuitinto my program, Thanks Miltos,I'm now expectingonly minor issues, if any,when I install the new controller on Thursday of this week. This is my first temperature controller project, which controls a gas burner to heat a large tank of water (~6m^3) to 60 degrees Celsius for the first hour to control Legionella bacteria,then drops the set point by an amount (~8 degrees K) to save gas without causing foaming due to low temperature. AttachmentSINGLE GAS BURNER.zip (369 Downloads) |
Last edited by: MattKab at: 9/13/2011 1:20 PM |
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9/13/2011 1:17 PM | |
Posts: 22 Rating: (0) |
And this is the 0BA7 badboy with control of 4 gas burners, optional working on Friday or Saturdayand sequential timing of various extraction fans, pumps and a gas drier:
AttachmentZEPHYR WASHPLANT.zip (317 Downloads) |
Last edited by: MattKab at: 9/13/2011 1:18 PM |
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9/14/2011 5:36 PM | |
Joined: 1/5/2007 Last visit: 4/7/2023 Posts: 1690 Rating: (580)
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Hi MattKab, i am sorry, but please remember the following, because the average-circuit from Siemens-support is not the best solution and the new function-blocks "Analog filter" and "Average value" of the 0BA7 are working not synchronous with the hardware-resolution of getting analog values from the inputs. First search "filter logo" and look my answers... you can find some older circuits from me to filter signals (by calculate amean value). At the german forum part i have build a summary of all my circiuts to filtering analog signals at "Hinweise zu Maßnahmen bei schwankenden Analogeingangswerten (z. B. Temperatur-Messwerten)" |
==> Meine TAG-Listen: "deut." |
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