Persistence

Persistent storage of values modified by BACnet clients (e. g. from the BMS) is provided as a file in the TwinCAT boot directory (BACnetOnline_1010010.bootdata). To enable persistent storage, please activate “Persist Server Online Data in the BACnet Server settings (as shown above).

In case a UPS is installed in the controller, the flag Use UPS may be activated. In this case, the UPS function block must assure that persistent data is written in case of a power loss.