Hi. Im working with PID controller from oscat basic library 3.3.4.0 I using CTRL_PID. When i turn it into manual mode change value and then set back into automatic, controler begins to control from last frozen value. How to implement bumpless transition? For some reason can't find any one doing smtg similar. I tried to overwrite internal y value, but i can't acces internal DB of this controller data type. Any ideas? Or any other pid controllers that have such function?
yes i read about parameters being in different registers with empty spaces, so you cant just read area, you need to read one by one. Drives will be used to regulate pressure and air flow by pid, so there will be quite a lot of speed control. Project uses RS485. Will there be much delay? I was thinking about reading one drive STW,AMPS,KW,SPEED and then just overwrite CTW AND reference even tho its not changed so i would not have to write script to check if speed or CTW is changed
Hi. I got a task to control couple of danfoss fc202 drives on ABB PM5630 over modbuss. Question i have is: since i need to read stw, speed, amp, kw and write speed, ctw is it better to just simply cyclically read/write data or just read and if detected change in ctw or speed setpoint do stop and do one write cycle? There are 7 drives/motors in total Anyone got any experience in codesys with such task?
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Bingo. Thanks
Bingo. Thanks!
Bingo. Thanks!
Bingo. Thanks!