Issue
In a Niagara R2 / MicroSmart integration, what's the optimal method to transfer data from a UNC station to all the MicroSmart controllers connected to its RS-485 port?
Environment
Niagara R2, Niagara G3
MicroSmart controllers (versions 10 & 11)
Cause
Sharing data between controllers
Resolution
The MSGlobalDataOut object will transmit data, from a UNC station, onto the MicroSmart (RS-485) bus using a MicroSmart global broadcast channel. Then, within each controller, a point can be programmed to access the data from that specific channel number. Only controllers with firmware revision 10 & 11 support MicroSmart global broadcast channels. MicroSmart controllers with a capacity of 64 points, like the MSC-MPC, can receive information on all 122 global channels. MicroSmart controllers with a capacity of 48 points, like the MSC-P1500 series, can only receive information on global channels 1 – 24.
See the MicroSmart Driver Engineering Guide (F-27327) for more details on the MSGlobalDataOut object.
See the DMS Operator Interface User’s Guide (F-25467) for more details on MicroSmart Global Broadcasting.