Configure the FS20 BACnet Time Synchronization
To avoid inconsistencies in the events time stamp, you need to synchronize the fire panels clock with the Desigo CC management station.
- The management stations and the fire panels are set to the same local time zone.
- In System Browser, select Project > Field Networks > [BACnet network] > [fire system] > Hardware.
- Click the [device] that represents the FC20/FT20 Global System Time master unit.
NOTE: Only one unit needs to be synchronized, and that is the unit set as Global System Time master, typically but not necessarily the GAP unit.
- Select the BACnet tab, and open the Timing and Status Info expander.
- In the Time sync type drop-down list, select UTC.
- In the UTC offset field, check that the value matches the time zone of the management station:
The UTC offset value is acquired from the fire system. The UTC offset is expressed in minutes, with opposite sign (for example, if the UTC offset is +1 hour, it is expressed as -60).
You can correct the UTC offset value offline in the fire system tool (see Global system configuration > Country settings > Operation tab), then restart or reconnect the fire system, and check the new value acquired.
NOTE: When the FS20 system is online, you can verify the UTC Offset setting of each unit in the Extended Operation tab of the hardware device node.
- Click Save .
- In System Browser, select in turn the [devices] representing the FC20/FT20 units that are not Global System Time master.
- Select the BACnet tab, and open the Timing and Status Info expander.
- In the Time sync type drop-down list, select None.
- Click Save .
- (Optional) Adjust the time synchronization parameters in the BACnet driver:
- Depending on whether the driver runs on the server or FEP station, select one of the following:
- Project > Management System > Servers > Main Server > Drivers > [BACnet driver]
- Project > Management System > FEPs > [FEP] > [drivers folder] > [BACnet driver]
- Open the Time Synchronization expander, and configure the following:
- Time sync interval: Set the synchronization delay in minutes. Default is 1440 (24 hours).
- Align intervals: Select the check box to start the periodic time synchronization on the hour.
- Interval offset: Set a delay between the Time sync interval and the actual time sync.
- Click Save .