Connecting The Rs485 Communications Cable (Inverter Cascading) - Huawei SUN2000 Series User Manual

SUN2000-(3KTL-10KTL)-M0
User Manual

5.6.1 Connecting the RS485 Communications Cable (Inverter
Cascading)
Procedure
Step 1 Connect the signal cable to the signal cable connector.
Issue 04 (2019-10-18)
Figure 5-20 Smart Dongle networking
 In the Smart Dongle networking scenario, the SmartLogger1000A cannot be connected.

The Smart Power Sensor is necessary for export limitation. Only the DTSU666-H Smart Power
Sensor (provided by Huawei) can be used.
 The Smart Power Sensor and Smart Dongle need to be connected to the same inverter.
SmartLogger1000A Networking Scenario
Figure 5-21 SmartLogger1000A networking
 In the SmartLogger1000A networking scenario, the Smart Dongle cannot be connected.

A maximum of 80 devices can connect to a single SmartLogger1000A, such as inverters, Smart
Power sensor, and EMI. You are advised to connect fewer than 30 devices to each RS485 route.

The Smart Power Sensor is necessary for export limitation. Select the Smart Power Sensor according
to the actual project.
 To ensure the system response speed, the Smart Power Sensor is recommended to be connected to a
COM port separately from inverter COM port.
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