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SUN2000-(50KTL, 60KTL, 65KTL)-M0 User Manual

This document describes the SUN2000-50KTL-M0, SUN2000-60KTL-M0 and SUN2000-65KTL-M0 in terms of its installation, electrical connections, commissioning, maintenance, and troubleshooting.
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Communication Mode Description

Communication Mode Description

RS485 Communication

The SUN2000 can connect to the SmartLogger over RS485 or to a PC through the SmartLogger to implement communication. You can use the SUN2000 app, SmartLogger, embedded WebUI, or the network management software (such as the NetEco) on the PC to query information about the SUN2000, such as energy yield, alarms, and running status.

  • Figure 5-21 shows the communication mode for a single SUN2000.
    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
    • 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.

MBUS (PLC) Communication

The MBUS (PLC) communication board loads communication signals onto power cables for transmission.


The built-in MBUS (PLC) module in the SUN2000 does not need to be connected with additional cables.

Selecting a Communication Mode

The RS485 and MBUS (PLC) communication modes are mutually exclusive.

  • If the MBUS (PLC) communication mode is selected, do not connect the RS485 communications cable. In addition, you need to set MBUS Communication to Enable on the SUN2000 app.

    The MBUS (PLC) communication mode is only applicable to medium-voltage grid connection scenarios and non-low-voltage public grid connection scenarios (industrial environment).

  • If the RS485 communication mode is selected, you are advised to set MBUS Communication to Disable on the SUN2000 app.
Updated: 2019-10-12

Document ID: EDOC1100016052

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