Huawei SUN2000-50KTL-M0 User Manual page 61

SUN2000-(50KTL, 60KTL, 65KTL)-M0
User Manual
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MBUS (PLC) Communication
The MBUS (PLC) communication board loads communication signals onto power
cables for transmission.
Selecting a Communication Mode
The RS485 and MBUS (PLC) communication modes are mutually exclusive.
Issue 06 (2020-07-07)
Figure 5-21 Communication mode for a single SUN2000
Figure 5-22 shows the communication mode for multiple SUN2000s.
If multiple SUN2000s are used, connect all the SUN2000s in daisy chain mode
over an RS485 communications cable.
Figure 5-22 Communication mode for multiple SUN2000s
NO TE
● The RS485 communication distance between the SUN2000 at the end of the daisy
chain and the SmartLogger cannot exceed 1000 meters.
● If multiple SUN2000s need to communicate with one another and are connected
to a PC over the SmartLogger1000, a maximum of three daisy chains can be
configured.
● If multiple SUN2000s need to communicate with one another and are connected
to a PC over the SmartLogger2000, a maximum of six daisy chains can be
configured.
● To ensure the system response speed, it is recommended that the number of
devices on each daisy chain be less than 30.
NO TE
The built-in MBUS (PLC) module in the SUN2000 does not need to be connected with
additional cables.
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5 Electrical Connections
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