Connecting The Rs485 Communications Cable - Huawei SUN2000-55KTL-HV-D1 User Manual

SUN2000-(55KTL, 60KTL) Series
User Manual
PLC Communication
The PLC communication board loads communication signals onto power cables for
transmission. For details about how to install the PLC, see the PLC CCO01A User Manual or
SmartLogger2000 User Manual.
Selecting a Communication Mode
The RS485 and PLC communication modes are mutually exclusive.
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5.7.2 Connecting the RS485 Communications Cable

Description
An RS485 communications cable can be connected in two ways:
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Issue 02 (2017-07-30)
Figure 5-17 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.
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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.
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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 module in the SUN2000 does not need to be connected with cables.
If the PLC communication mode is selected, do not connect the RS485 communications
cable. In addition, you need to set PLC communication to Enable.
If the RS485 communication mode is selected, do not connect the PLC CCO module to
the AC power cable. In addition, you are advised to set PLC communication to Disable.
 PLC communication is set to Enable by default.
 You can set a single SUN2000 over the SUN2000 app or set multiple SUN2000s in batches over the
SmartLogger.
Terminal block connection
You are advised to use a DJYP2VP2-22 2x2x1 PC cable or a communications cable with
a conductor cross-sectional area of 1 mm
RJ45 network port connection
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and cable outer diameter of 14–18 mm.
5 Electrical Connections
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