Data Transmission With A Separate Data Cable - SMA Sunny Boy 2000 Technical Description

Sunny Boy 2000

6.2 Data Transmission with a Separate Data Cable

Data transmission via Powerline is a reliable and affordable solution. In electrical
grids which are strongly influenced by high-frequency disturbance such as those in
industrial sites data transmission via Powerline may not be possible. Communication
between the Sunny Boys and the Sunny Boy Control or the PC can then be done
with a separate data cable.
RS232 communication
If only one Sunny Boy has to be connected to the PC the easiest way is direct cou-
pling via an RS232 port. A maximum of 15 m is permissible between the PC and the
Sunny Boy.
Single
Sunny Boy
RS 232
Electricity Grid
Fig. 6.2: Data transmission with a separate data cable to one single Sunny Boy
RS232 communication with one Sunny Boy is only a reasonable solution
with direct connection to the PC.
If a Sunny Boy Control is used instead of the PC an RS485 connection is
necessary even for communication with only one Sunny Boy (see section
'RS485 communication" for details).
SB2000-11:EE
PC
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Technical Description
SMA Regelsysteme GmbH