Obvius BACnet - Manual (Page 17)

BACnet Server for AcquiSuite Page 17 of 52
CVS:bacnet/Documentation/BACnet_Users_Guide.doc
2.2.4 Case Study: “Consumption Only” Option at 9600 Baud
If your application requires only “energy” (kWh) data, the AcquiSuite’s “consumption only” option is worth
considering.
In this case study, the AcquiSuite’s “consumption only” option has been turned on for those meters which
support the option (compare this table to the above ).
This causes the AcquiSuite to only log the “energy” points (kWh) rather than all points, reducing the data
to be logged and allowing a quicker data refresh interval.
Contact Obvius for details about whether a particular meter supports “consumption only” mode.
2.3 Maximum BACnet Clients
Obvius recommends a maximum of 128 simultaneous BACnet clients. “Reads” are satisfied from
cache. The achievable data refresh interval is typically limited by the AcquiSuite’s Modbus RS485
bandwidth, number and type of meters.
If writing (to relays) via BACnet, Obvius recommends a maximum of 8 simultaneous “writers.” Writes
are not cached; each write will result in a Modbus write to the relay device.