7
RICKARD 2019
MLM INTEGRATION WITH BMS
For BMS mapping of the data points, the zone number of the master diffusers is used as the reference point. In
our example Zone 1 will be the identifier surfaced to the BMS to indicate control data for Zone 1. Channel 1 has
a single master controller connected, whereas channel 2 contains 3 master zone controllers.
Discovering the MCU 2 with Lon
Some concepts about the MCU Lon gateway implementation:
The Lon configuration file (.xif) should preferably be downloaded from the MCU device during commis-
sioning utilizing the service button. If not, the .xif program revision files 3 (standard command set) and 4
(extended command set) is available on the Rickard Trac download site http://trac.lhar.co.za/
Pressing the service button will broadcast the Neuron ID and the program ID to the BMS system.
Each MCU is labelled with the unique Neuron ID number for that device.
Should the user wish to utilize the heartbeat (nciSndHrtBt) functionality, the MCU will propagate all the
remaining network variables that were not propagated during the previous heartbeat period.
It is assumed the user is familiar with the standard LNS (Lon Network Service) tools and their implementation.
Reference will only be made to these software tools.
The Lon MCU device is easily discovered by the Lonmaker tool by entering a Neuron ID or using the service
button.
Note the SCC functional blocks starting at SCC VAV(0) through SCC VAV(59) corresponds with Zone 1 through
Zone 60 on the MCU.
