A.O. Smith BMS Interface - BMS Interface Data Access and Parameters; Data Access via Modbus Protocol; BMS Interface Parameter Reference List

Instruction manual - BMS Interface
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4 Data readout
The BMS Interface supplies data in a Modbus format to the building management
system. The end user will receive this data and needs to process this. The attached
parameter list can be used. Pay attention that some data has to be converted into the
right format before receiving the expected values. The required conversions are also part
of the table given further on.
ATTENTION
The parameters mentioned in the table are all of the type “read only”. The only exception
is parameter 0, which is “read/write”.