Edvin Posted November 4, 2016 Report Share Posted November 4, 2016 Do have any one a sample of temperature controller for P100 to JZ10-11-UA24 ??? Quote Link to comment Share on other sites More sharing options...
MVP 2023 Joe Tauser Posted November 4, 2016 MVP 2023 Report Share Posted November 4, 2016 Are you looking to do PID or on/off control? Joe T. Quote Link to comment Share on other sites More sharing options...
Edvin Posted November 8, 2016 Author Report Share Posted November 8, 2016 On 04.11.2016. at 11:38 AM, Edvin said: Do have any one a sample of temperature controller for P100 to JZ10-11-UA24 ??? I looking for controll with PID Quote Link to comment Share on other sites More sharing options...
MVP 2023 Joe Tauser Posted November 10, 2016 MVP 2023 Report Share Posted November 10, 2016 Open the Help Menu on the U90 software and look at Sample U90 Projects->Examples ->PID. There are several programs you can look at. Joe T. Quote Link to comment Share on other sites More sharing options...
Edvin Posted November 10, 2016 Author Report Share Posted November 10, 2016 O.k. Thank you Joe T. Quote Link to comment Share on other sites More sharing options...
cantcliff Posted November 16, 2016 Report Share Posted November 16, 2016 Keep in mind the PID loop only functions in one direction, heating or cooling. In order to handle both you'll need a logic setup to switch between two PID loops. Quote Link to comment Share on other sites More sharing options...
Edvin Posted November 17, 2016 Author Report Share Posted November 17, 2016 O.K. Thanks Quote Link to comment Share on other sites More sharing options...
Edvin Posted December 12, 2016 Author Report Share Posted December 12, 2016 Hello, Does someone have, some project or program instruction for temperature and humidity control using 2X PT 100 ?? Quote Link to comment Share on other sites More sharing options...
MVP 2023 Joe Tauser Posted December 16, 2016 MVP 2023 Report Share Posted December 16, 2016 Are you trying control humidity using a wet bulb / dry bulb configuration? If so, I'd advise against it. A humidity sensor is much easier. Joe T. Quote Link to comment Share on other sites More sharing options...
Edvin Posted December 20, 2016 Author Report Share Posted December 20, 2016 Yes, I'd like to know that is how it works what for logic or math functions someone use for control using bulb/dry PT100 .. I know that the humidity sensor is better and simple variant. But I'd like to know, and this principle .. Quote Link to comment Share on other sites More sharing options...
MVP 2023 Joe Tauser Posted December 20, 2016 MVP 2023 Report Share Posted December 20, 2016 I actually ran into this on a test fixture designed for vacuum cleaners. Moisture content of the air was part of the power calculation. Here is a paper on the equations needed to do what you want: http://maxwellsci.com/print/rjaset/v6-2984-2987.pdf Look through the equations and you see exponents are involved in getting the saturation vapor pressure. This math is beyond what a Jazz is designed to do. Floating points are needed. Unless you're really a glutton for punishment. Google "Taylor Series Expansion of Exponential Functions", which can probably be done in a Jazz. Many, many moons ago I did this in a Siemens PLC to calculate cosine. However, if you ask me to provide an example of how to do a Taylor Series in a Jazz I will reach through the Internet and choke you. Joe T. 1 Quote Link to comment Share on other sites More sharing options...
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