Huawei SUN2000-8KTL-M0 - Connecting the RS485 Communications Cable (Inverter Cascading)

SUN2000-(12KTL, 15KTL, 17KTL, 20KTL)-M0
User Manual
5 Electrical Connections
Issue 03 (2019-07-19)
Copyright © Huawei Technologies Co., Ltd.
47
Figure 5-19 SmartLogger 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 a necessary 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.
5.6.1 Connecting the RS485 Communications Cable (Inverter
Cascading)
Procedure
Step 1 Connect the signal cable to the signal cable connector.