SMA Sunny Boy Control - Manual (Page 148)

Sunny Boy Control
SMA Technologie AG
User Manual SUNBC - 14 : NE0206 144
9.2.3 Communication
Measuring communication distance
If the length of the transmission line between the devices of the plant and the device
for data acquisition (PC with SWR-COM and Sunny Data or Sunny Boy Control) is
unknown, this distance can be measured with a Sunny Boy Control and a PC with
SWR-COM and Sunny Data. You can thus test the quality of Powerline communica-
tion before installing the system.
The Sunny Boy Control has to be plugged in the same socket as the PC with Sunny
Data . Switch the data acquisition of the Sunny Boy Control off:
’Setup…System…Service Funct.: reset system’
. Confirm twice with
[ ENTER ] . The Sunny Boy Control will start the Plug & Play sequence the next time it is
activated.
If the Sunny Boy Control is brand-new it is sufficient to simply switch it on without any
further action.
The PC with Sunny Data now has to be prepared for the test by selecting the option
‘Detect SWR’. After successful detection the Sunny Boy Control is to be placed at the
end of the distance to be measured. The number of packages and the resulting calcu-
lated quality of transmission in per cent can be seen in Sunny Data version 1.30 and
higher under the option: ‘SWR transmission statistics’.