March 20, 2019
Broken BACnet network is a problem often experienced by our product users, analytics or consultative clients. It happens more times than you think— it is usually about customers trying to get from TCP/IP subnet to subnet without (the usually banned) global broadcasts between subnets.
Often there is a Broadcast Management Device (BBMD) or Foreign Device (FD) are involved and often communication is broken.
“Broken” can mean some or all devices involved:
Note that software BACnet network devices can add another layer of complexity where execution privileges, network access and OS firewall issues can cause difficulties. The solution to this problem will be a standalone BBMD – e.g. Cimetrics B3060 - running on an embedded hardware platform with a network OS. Just turn off or remove all your problem BBMDs, and place the standalone BBMD in each and every isolated subnet. B3060 Configuration steps involved:
- Open up Foreign Device (FD) on each form allowed remote access (allow FD and get status via Foreign Device Table (FDT).
- Point each unit at all other units with which you wish to share broadcasts. (Fill the BDT with a mesh of your design in your control).
- No “extra” interfaces or networks to complicate setup.
- Operate seamlessly. Enjoy. To learn more check out the B3060 manual in the Documentation tab.
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