I'm trying to figure out if there is a relatively easy way to freeze the integrator in the Micrologix 1400. We've used some loop controllers that have a feature where you can set a value above which the integrator is frozen. This has worked well for us in the past to prevent overshoot (slow acting temperature control) and I'd like to try and implement it in the 1400.
It looks like maybe I could grab the value in PD11:0.IS and constantly write it back to PD11:0.IS when the output is greater than say 50%. This scares me a little since you cant really make any sense out of what the value means.
Anyone ever try anything like this?
It looks like maybe I could grab the value in PD11:0.IS and constantly write it back to PD11:0.IS when the output is greater than say 50%. This scares me a little since you cant really make any sense out of what the value means.
Anyone ever try anything like this?