Obvius BACnet - Manual (Page 14)

BACnet Server for AcquiSuite Page 14 of 52
CVS:bacnet/Documentation/BACnet_Users_Guide.doc
2.2.2 Case Study: Meters Connected via Modhopper, 1-Hop Maximum
The table below shows the effect of connecting meters via a Modhopper wireless mesh network. The
increased latency due to packetizing data for RF transmission has slowed data refresh.
If more than two Modhoppers are being used, the AcquiSuite should be arranged in the center of the
Modhopper network so that each meter can be reached by at most 1 “hop.” Each “hop” adds 500 ms of
latency. The total delay latency may be several times that for meters with many points (such as the Veris
E30A or Benjamin Electric PP+) as these meters require several modbus round-trips for each update.