Hello fellas.
I am trying to wrap up a project this weekend. I missunderstood the desired concept for an analog valve.
I set up a rung that would move a set value to the analog output. Once it reached a set point (read by a 4-20ma level transmitter) it would go back to direct proportional control from that transmitter.
I now know I need to use PID control.I have never done that.I need to set a target value that the valve will open or close to try to reach and sustain that level.
I have very little time and the help on the SLC instructions leave some to be desired.
I have reached as far as inserting a PID function and opening the setup box. I don't know what values to enter. I see from another post that someone else is looking into similar app. I looked at those links and while it helps me understand PID better, I could use more help specific to setting it up in my AB micro 1500.
Thanks in advance for any help in shortening my steep learning curve.
I am trying to wrap up a project this weekend. I missunderstood the desired concept for an analog valve.
I set up a rung that would move a set value to the analog output. Once it reached a set point (read by a 4-20ma level transmitter) it would go back to direct proportional control from that transmitter.
I now know I need to use PID control.I have never done that.I need to set a target value that the valve will open or close to try to reach and sustain that level.
I have very little time and the help on the SLC instructions leave some to be desired.
I have reached as far as inserting a PID function and opening the setup box. I don't know what values to enter. I see from another post that someone else is looking into similar app. I looked at those links and while it helps me understand PID better, I could use more help specific to setting it up in my AB micro 1500.
Thanks in advance for any help in shortening my steep learning curve.