1. The NetEco1000S is an equipment-level monitoring software for inverters. It is mainly used in SUN2000, SUN8000 and third-party inverters.

2. The device that cannot be upgraded by the NetEco1000S system for remote software is ()

3. Regarding the description of SmartLogger1000 and SmartLogger2000, the error is () (Multiple Choice)

4. Huawei Smart Array Controller SmartACU2000B is recommended to be larger than () mm from the ground when installing.

5. About Huawei's smart photovoltaic solution grounding system design, which of the description is correct? (Multiple Choice)

6. When the debugging of the Huawei PLC communication network is started, which of the following description about the operation to set the anti-crosstalk is correct? (Multiple Choice)

7. When installing the AC line of Huawei SUN2000 inverter, it is recommended that the stripping length of the insulation layer be 2mm~3mm longer than the crimping area of ​​the OT terminal cable to facilitate wiring. After pressing the terminal, the crimping line needs to be covered with a heat shrinkable sleeve cutting edge tape.

8. During the operation of Huawei SUN2000L household inverter, the inverter "DC SWITCH" can be directly turned "OFF" to perform shutdown operation.

9. Which of the following designs is not suitable for a mountain photovoltaic power station system?

10. The Huawei PID module adjusts the PV+ or PV-to-ground voltage of the panel by injecting a voltage between the N-line and the ground of the isolation transformer, thereby suppressing the PID effect of the panel.

11. The baud rate default is when Huawei's SUN2000 inverter communicates by PLC mode ().

12. The recommended bottom installation space for the Huawei SUN2000 inverter is ().

13. When the Huawei SUN2000 inverter is alarmed and cannot be connected to the network, the alarm ID is 313-1 (low insulation resistance). Which of the following measures can be taken to troubleshoot or try to solve? (Multiple Choice)

14. When the Huawei PID module is applied to the SUN2000 scenario, which of the following description is correct? (Multiple Choice)

15. Which of the following inverter parameters can be modified by the advanced user login Huawei SUN2000 APP?

16. The adjustable range of Huawei SUN2000 inverter power factor can be ( ).

17. EHS includes three aspects of environment, occupational health and safety. Among them, occupational safety is the most important. Personnel behavior can neglect the impact on the environment and occupational health under the premise of ensuring safety.

18. The in-out line mode of Huawei's intelligent sub-array controller SmartACU2000B adopts the method of going in and out.

19. The default value of the RS485 communication address of the Huawei PID module is 1. To modify the RS485 communication address, you can modify it by logging in to the SmartLogger's WEBUI interface.

20. In the Smartlogger WebUI interface, when the "Active Power Control" parameter is configured as "Enable", the Smartlogger can perform active power control on the managed inverter.