Configure the FS720 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.
  1. In System Browser, select Project > Field Networks > [BACnet network] > [fire system] > Hardware.
  1. 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.
  1. Select the BACnet tab, and open the Timing and Status Info expander.
  1. In the Time sync type drop-down list, select UTC.
  1. 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.
  1. Click Save .
  1. In System Browser, select in turn the [devices] representing the FC20/FT20 units that are not Global System Time master.
  1. Select the BACnet tab, and open the Timing and Status Info expander.
  1. In the Time sync type drop-down list, select None.
  1. Click Save .
  1. (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.
  1. Click Save .