I have an application where I'm trying to sync a HMI clock with the Micrologix RTC. I finally got everything working, but I found one fairly major issue. If you send the time/date while the RTC is disabled, the PLC will fault. What I would like to do is have the PLC program enable the RTC, but I don't think this is possible. The only way I can see is to enable it through RS Logix.