Huawei SUN2000-50KTL-M0 User Manual page 58

SUN2000-(50KTL-M0, 70KTL-INM0)
User Manual (India Edition)

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 03 (2019-07-30)
Figure 5-25 Communication mode for a single SUN2000
Figure 5-26 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 5-26 Communication mode for multiple SUN2000s
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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.
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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