Huawei SUN2000 User Manual page 64

SUN2000 (8KTL-28KTL)
User Manual
USB Port
The SUN2000 communicates with the USB flash drive over a USB port to implement
functions of firmware upgrade, configuration loading, data downloading, and configuration
downloading.
RS485 Port
The SUN2000 communicates with the RS485 port to send the data of energy yield, alarm
information, and running status to the PC terminal of the element management system (EMS)
monitoring software (such as the NetEco) and the local data collector (such as the Smart
Logger).
The SUN2000 communicates with the RS485 port by using the following methods:
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Figure 5-25
Figure 5-26
Figure 5-25 RS485 communication mode (1)
Issue 07 (2014-07-30)
If only one SUN2000 is used, use a communication cable with waterproof RJ45
connectors, and choose either of the two RS485 ports and cover the unused port by using
a waterproof cover.
Set Match Resistance of the inverter to Connect in Comm. Param. (For details about
this, see 7.2.8 Setting Communications
layer of the communication cable must be grounded.
If multiple SUN2000s are used, connect all SUN2000s in daisy chain mode over the
RS485 communication cable.
Set Match Resistance of every inverter at the end of the daisy chain to Connect in
Comm. Param. (For details about this, see
and the single point of the shielded layer of the communication cable must be grounded.
Connect the SUN2000 to the PC terminal over an RS485/RS232 converter to implement
communication.
Connect the SUN2000 to the Smart Logger to perform data collection and monitoring, or
connect to the PC terminal over the Smart Logger to implement communication.
shows how one SUN2000 connects to the Smart Logger and the PC terminal.
shows how multiple SUN2000s connect to the Smart Logger and the PC terminal.
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Parameters), and the single point of the shielded
7.2.8 Setting Communications
5 Electrical Connections
Parameters),
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