To set the Raspberry Pi time from the RTC for the Industrial Automation card, run the following command from the command line or from cron:
t=$(megaind 0 rtcrd) | sudo date --set '$t'
Change the megaind command with the appropriate one for the card you use.
We wrote a full script which keeps the two systems in sync. If the network is active, it sets the RTC time from Raspberry Pi.
If the network is down, it sets the Raspberry Pi time from the RTC. You can download the script from GitHub, with instructions HERE.