Huawei SUN2000-28KTL User Manual page 64

SUN2000 (8KTL-28KTL)
User Manual
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Figure 5-25
shows how multiple SUN2000s connect to the SmartLogger and the PC.
Figure 5-25 Communication mode for a single SUN2000
Figure 5-26 Communication mode for multiple SUN2000s
Issue 12 (2019-06-30)
If only one SUN2000 is used, connect a communications cable with waterproof RJ45
connectors to either of the two RS485 ports and block the other one with a waterproof
cover.
If multiple SUN2000s are used, connect all SUN2000s in daisy chain mode over the
RS485 communications cable.
Connect the SUN2000 to the SmartLogger to implement data collection and monitoring,
or connect it to the PC over the SmartLogger to implement communication.
shows how one SUN2000 connects to the SmartLogger and the PC.
 For the SUN2000 on the end of the chain, on the Comm. Param. screen of the LCD, set Match
Resistance to Connect (Disconnect by default) to enable the build-out resistor (see
Communications Parameters
 Match Resistance can also be set using the SUN2000 APP. For details, see the SUN2000 APP User
Manual. If the SUN2000 APP needs to be used for setting, ensure that the SUN2000 firmware
version is V100R001C81SPC101 or later.
 The communications cable should be shorter than 1000 m.
If multiple SUN2000s need to communicate with one another and are connected to a PC over the
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SmartLogger, a maximum of three daisy chains can be configured to support up to 80 devices. It is
recommended that the number of devices on each daisy chain be less than 30.
Copyright © Huawei Technologies Co., Ltd.
for details).
5 Electrical Connections
Figure 5-26
7.2.8 Setting
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