Babel Buster 485XL is a BACnet MS/TP Server that maps LonWorks network variables to BACnet objects. The mapping capacity of the gateway is as follows:
| 100 Writeable Analog Input Objects (AI) | |
| 5 Commandable Analog Value Objects (AV) | |
| 40 Writeable Binary Input Objects (BI) | |
| 10 Commandable Binary Value Objects (BV) |
You may be wondering where the "output" objects. are. The commandable value objects are intended to be used as output objects with priority arrays. In addition, all input objects are "writeable" meaning they can go either direction. LonWorks network variables are either inputs or outputs, and you select the direction of data flow for the object when you configure the object map.
The BACnet priority array is implemented and honored as follows: Writes to LonWorks will write the value determined by the priority array. The Present Value property will reflect the value actually written. When set "out of service", writes to the BACnet object will be written directly to LonWorks and to the Present Value.
The AI/BI objects are normally "read only" objects, and will poll any LonWorks network variable output in a remote LonWorks node. If the AI/BI object is placed "out of service", it becomes writeable, and will be a "write only" object as long as it is out of service. In the "write only" mode, the object will update any LonWorks network variable input in a remote node.
Babel Buster 485XL is designed for connecting from 1 to 20 LonWorks devices to a BACnet network. Furthermore, it makes the assumption that no network management is being implemented on the LonWorks "network" and all device management will be handled by the Babel Buster 485XL. No network variables are ever bound, they are only polled or updated via explicit messages. To the remote LonWorks node, these appear as standard network variable messages.
IMPORTANT: Knowledge of both LonWorks and BACnet protocols is necessary for successful integration of this gateway. All documentation for Babel Buster 485XL makes the assumption you are familiar with both protocols. If you are not familiar with both protocols, you are encouraged to enlist the help of someone with experience in both protocols. It is beyond the scope of this online help or Control Solutions support to provide training in either protocol.
Click here for step by step startup instructions.
Click here for Babel Buster 485XL Configuration Tool help.
Click here for XIF to XML conversion instructions.
Click here for hardware guide.
Click here for additional overview information including complete BACnet property summary.
Click here for trouble shooting summary.
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