Obvius BACnet - Manual (Page 11)

BACnet Server for AcquiSuite Page 11 of 52
CVS:bacnet/Documentation/BACnet_Users_Guide.doc
2 Planning Your Deployment
The guidelines in this section will help you plan your deployment, determine equipment required and
estimate performance before you begin your installation.
2.1 Software Installation Requirements
· AcquiSuite firmware version v02.13.0211 or later.
· One of the following models:
o A8812 (AcquiSuite),
o A8810 (AcquiSuite EMB),
o A7810 (AcquiLite), or
o A8814 (AcquiSuite+).
· An Internet connection to
www.buildingmanageronline.com if over-the-web install is to be used.
· 1MB of free flash memory on the AcquiSuite. The BACnet module is approximately 750kB.
· Other BACnet/IP devices on the LAN to which the AcquiSuite is connected.
2.2 Number of AcquiSuites Required
In general, Obvius recommends a maximum of 32 meters per AcquiSuite, but this number may need to
be reduced depending on several factors.
The number of AcquiSuites required to service a collection of meters depends on:
· the desired data-refresh interval or logging period,
· whether or not the AcquiSuites are also being asked to control relays (control-loops typically
work better with lower latency, and some applications may not tolerate high latency),
· whether “consumption only” logging is available and acceptable (“consumption only” is an
option available on some meters which reduces data logged by the AcquiSuite to just the
“energy” or kWh points).
These factors in turn depend on:
· the meter’s maximum RS485 baud rate,
· the number of points per meter,
· the method of connection (RS485 or Modhopper; Modhoppers add latency),