Timesynch (TSynch) function

Starting in AX-3.5, the Bacnet Device Manager provides a Tsynch button that lets you send a manual (one-time) time synchronization message, from the station to all BACnet devices on the network.

Prior to AX-3.5, this function was available only from a BACnet Supervisor’s Bacnet Ws Device Manager view. This functionality was moved from the bacnetws module into the core bacnet module.

When you click Tsynch, you are first asked to confirm this action, as it will send the current station time to all controllers on the network.

Figure 26. Time Synch pre-confirmation dialog

If you choose Yes, you see a Synchronize Time dialog, shown in Figure 27.

Figure 27. Time Synchronization configuration dialog

As shown above, this dialog has two fields:

Time Synch Type

Select either Local Time (default), or UTC Time.
Time Synch Range

Select either Local Networks Only (default), or All Connected Networks.

When you click OK, a time synchronization request is then broadcast to the network. This is a one-time message.

If you wish to schedule periodic BACnet time synchronization sent from the station, configure this in the LocalBacnet Device (AX-3.5 and later). See Time synchronization properties for details.

Such LocalDevice configuration also applies to a BACnet AWS Supervisor (BacnetAwsNetwork) or BACnet OWS Supervisor (BacnetOwsNetwork).