Connecting to Huawei

Connecting to Huawei Loggers

PLEASE OBSERVE ALL MANUFACTURER SAFETY AND OPERATION INSTRUCTIONS

Required Documents

1. Ensure you have read a copy of the manufacturer operating manual. The Huawei SmartLogger 1000 and 2000 model, user manual can be found as follows:

a. Refer to document "Huawei SmartLogger 1000” and can be found here (Page 224). b. Refer to document "Huawei SmartLogger 2000” and can be found here (Page 162).

2. The Huawei Loggers allow a third party to read inverter information via Modbus TCP. Refer to Reference A or B. In either case, log into the Huawei Logger as an "Advanced User". Navigate to the "Settings->Modbus TCP" area, and then set the following parameters

a. If the Ardexa device has a static address, then select "Settings->Modbus TCP->Enable (Limited)" and enter the IP address of the Ardexa machine. b. If the Ardexa device has a DHCP address (not static), then select "Settings->Modbus TCP->Enable (Unlimited)". c. In most cases, set Address mode to "Settings->Modbus TCP->Comm. Address". If the devices connected to the COM ports of the SmartLogger have duplicate communications addresses, you must set Address mode to "Settings->Modbus TCP->Logical address" d. Reboot the Huawei Logger

3. Advise Ardexa of the following:

a. How many inverters are connected, and. b. The RS485 addresses of all those inverters.

4. Ardexa will check connectivity before you leave the station, via the designated Slack channel.

NOTE: Reading Huawei Sun Inverter Data

If you require Ardexa to read Inverter data. Be aware that from the Huawei Sun Logger 1000 Modbus document (not publicly available )...On page ii it says "....Remapped Modbus definitions(supported by V200R002C20 and later version)..." You will need the latest firmware loaded on the logger in order to read Inverter data detailed in page 18 Paragraph "2.7 Remapped Modbus definitions". It appears this is also the case for the Huawei Sun 2000 loggers.