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(Optional) Installing the Signal Cable
Communication port signal definitions
- When routing the signal cable, ensure that it is separate from the power cable and away from interfering sources to prevent communication from being affected.
- The protection layer of the cable is in the connector. Cut off surplus core wires from the protection layer. Ensure that the core wires are completely inserted into the cable holes, and that the cable is securely connected.
Figure 5-19 Signal definitions
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Table 5-3 Signal definitions
Pin |
Definition |
Function |
Description |
Pin |
Definition |
Function |
Description |
|---|---|---|---|---|---|---|---|
1 |
485A1-1 |
RS485 differential signal+ |
Used to connect to the RS485 signal port on the SUN2000 or SmartLogger1000A |
2 |
485A1-2 |
RS485 differential signal+ |
Used to connect to the RS485 signal port on the SUN2000 or SmartLogger1000A |
3 |
485B1-1 |
RS485 differential signal– |
4 |
485B1-2 |
RS485 differential signal– |
||
5 |
PE |
Shielding ground |
N/A |
6 |
PE |
Shielding ground |
N/A |
7 |
485A2 |
RS485 differential signal+ |
Used to connect to an RS485 signal port on a Smart Power Sensor for export limitation |
8 |
DIN1 |
Dry contact interface for grid scheduling |
Connects to the Ripple Control Device. |
9 |
485B2 |
RS485 differential signal– |
10 |
DIN2 |
|||
11 |
N/A |
N/A |
N/A |
12 |
DIN3 |
||
13 |
GND |
Signal ground |
N/A |
14 |
DIN4 |
||
15 |
N/A |
N/A |
N/A |
16 |
GND |
Communication Networking
- Smart Dongle Networking Scenario
Figure 5-20 Smart Dongle networking
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- 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 ScenarioFigure 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.
