paga19141 Posted May 25, 2020 Report Share Posted May 25, 2020 Dear colleagues, I have a trouble with programming JAZZ JZ20-UA24, due to lack of knowledge. Does anybody have ladder code for simple temeprature operation with thermocouple. Variables> Set Temperature, Hysteresis, and it should work when actual temo is less then set, to make outup ON, and if not, to OFF. Next on is when temperature drops below Set-Hys. I know it is simple, but not for me. Quote Link to comment Share on other sites More sharing options...
MVP 2021 Joe Tauser Posted May 31, 2020 MVP 2021 Report Share Posted May 31, 2020 Take a look at this post for some sample code to do deadband control- http://forum.unitronics.com/topic/5796-temperature-control/?tab=comments#comment-22824 If you need more help upload your program so we can have a look. Joe T. Quote Link to comment Share on other sites More sharing options...
MVP 2021 kratmel Posted May 31, 2020 MVP 2021 Report Share Posted May 31, 2020 Please find in Unitronics U90 ladder Help sample project: C:\Program Files\Unitronics\Unitronics U90 Ladder\Examples\PID\On off with hysteresis.U90 and open it. Please "Save as" this project with New name. In HW Configuration section of project change controller type to JZ20-UA24. Open this controller configuration. Please configure analog input Type (proper termocoupler type must be used) and select MI0 - destination for Analog input. Download project to PLC and use O0 to control the heater (you must use properly connected SSR or contactor for power control). Read JAZZ JZ20-UA24 hardware configuration manual for connect TC on p.5 https://unitronicsplc.com/wp-content/uploads/2016/09/JZ20_JZ20-J-UA24_IG_07-16.pdf Post result and quastion in this topic. Quote Link to comment Share on other sites More sharing options...
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