Huawei SUN2000-33KTL-JP User Manual page 63

SUN2000-(33KTL, 40KTL)-JP
User Manual
PLC (MBUS) Communication
The PLC (MBUS) communication board loads communication signals onto power cables for
transmission. For details about how to install the PLC (MBUS), see the SmartLogger2000
User Manual.
Selecting a Communication Mode
The RS485 and PLC (MBUS) communication modes are mutually exclusive.

The PLC (MBUS) communication mode is only applicable to medium-voltage grid
connection scenarios and non-low-voltage public grid connection scenarios (industrial
environment).

Issue 07 (2019-06-30)
Figure 5-22 Communication mode for multiple SUN2000s
 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 connect 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 connect 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 PLC (MBUS) module in the SUN2000 does not need to be connected with cables.
If the PLC (MBUS) communication mode is selected, do not connect the RS485
communications cable. In addition, you need to set PLC (MBUS) communication to
Enable on the SUN2000 APP.
If the RS485 communication mode is selected, you are recommended to set PLC
(MBUS) Communication to Disable on the SUN2000 app.
PLC (MBUS) Communication is set to Enable by default.
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5 Electrical Connections (2-pin Spot-Check Terminal)
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