I have written my own (basic) OEE code for Ignition SCADA. Their partner SepaSoft have an OEE suite which is vastly more comprehensive than mine. PM me if you want more info.
Yes I have visited the site. I know the OEE calculation and basics but I would like to know how this can be implemented as real time OEE ie while running the machine some SCADA is displaying the OEE value.