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Reading SOC/SOH from external storage unit from MODBUS TCP

Created: Mar 28, 2021 08:57:37Latest reply: Jul 27, 2021 08:01:00 513 15 1 0 0
  Rewarded HiCoins: 0 (problem resolved)

I was able to successfully get information from the Solar Inverter (SUN2000L-3KTL) and from the external storage unit (LG) using Modbus TCP.


From the storage unit I got access to the Charge and Discharge power (address 37001) but I am not able to find out how to get the current State Of Charge (SOC) or State Of Health (SOH) which I can see when using the FusionSolar app.


Could you help?

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Recommended answer

BetterMing
Created Mar 28, 2021 10:43:31

Hello, dear.
To get the battery health information, you need the relevant port number and MODBUS file in the past. You can get in touch with the PV team!
eu_inverter_support@huawei.com
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user_4147427
user_4147427 Created Apr 1, 2021 10:04:18 (0) (0)
Thanks. Assuming I get the port number, what would be the address and other details to obtain the information. I was not able to found where this information is explained in the documentation.  
BetterMing
BetterMing Reply user_4147427  Created Apr 1, 2021 10:05:36 (0) (0)
For related information, you can only ask the photovoltaic engineer, we don't know this.  
user_4147427
user_4147427 Reply BetterMing  Created Apr 1, 2021 10:26:23 (0) (0)
And how this information is obtained by FusionSolar application? I can see the battery charging status there.  
BetterMing
BetterMing Reply user_4147427  Created Apr 2, 2021 06:45:24 (0) (0)
Fusionsolar APP cannot obtain battery SOH information.  
user_4147427
user_4147427 Reply BetterMing  Created Apr 2, 2021 15:55:50 (0) (0)
Please let me know how I could send you a screenshot of FusionSolar APP showing SOC and SOH of the storage unit attached to the inverter.  
user_4147427
user_4147427 Reply user_4147427  Created Apr 2, 2021 16:09:44 (0) (0)
Here you are:
https://www.dropbox.com/s/9rrgiy2mubd0xus/FusionSolarScreenshot.png?dl=0  
BetterMing
BetterMing Reply user_4147427  Created Apr 3, 2021 01:49:15 (0) (0)
You can click Advanced in the input box below and upload a screenshot there.  
user_4147427
user_4147427 Reply BetterMing  Created Apr 5, 2021 08:06:31 (0) (0)
Done  
user_4147427
user_4147427 Reply user_4147427  Created Apr 17, 2021 14:44:13 (0) (0)
Any news?  
user_4147427
user_4147427 Reply user_4147427  Created May 2, 2021 15:08:46 (0) (0)
For future references, I found the memory address containing the State of Charge for the storage unit attached:
37004 - 1 register - unsigned integer - 1 decimal (so you have to divide by 10 to get the % value)  
All Answers
Hi, friend!
Please wait patiently. Our engineers are looking for answers to your questions.
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Hello, dear.
To get the battery health information, you need the relevant port number and MODBUS file in the past. You can get in touch with the PV team!
eu_inverter_support@huawei.com
View more
  • x
  • convention:

user_4147427
user_4147427 Created Apr 1, 2021 10:04:18 (0) (0)
Thanks. Assuming I get the port number, what would be the address and other details to obtain the information. I was not able to found where this information is explained in the documentation.  
BetterMing
BetterMing Reply user_4147427  Created Apr 1, 2021 10:05:36 (0) (0)
For related information, you can only ask the photovoltaic engineer, we don't know this.  
user_4147427
user_4147427 Reply BetterMing  Created Apr 1, 2021 10:26:23 (0) (0)
And how this information is obtained by FusionSolar application? I can see the battery charging status there.  
BetterMing
BetterMing Reply user_4147427  Created Apr 2, 2021 06:45:24 (0) (0)
Fusionsolar APP cannot obtain battery SOH information.  
user_4147427
user_4147427 Reply BetterMing  Created Apr 2, 2021 15:55:50 (0) (0)
Please let me know how I could send you a screenshot of FusionSolar APP showing SOC and SOH of the storage unit attached to the inverter.  
user_4147427
user_4147427 Reply user_4147427  Created Apr 2, 2021 16:09:44 (0) (0)
Here you are:
https://www.dropbox.com/s/9rrgiy2mubd0xus/FusionSolarScreenshot.png?dl=0  
BetterMing
BetterMing Reply user_4147427  Created Apr 3, 2021 01:49:15 (0) (0)
You can click Advanced in the input box below and upload a screenshot there.  
user_4147427
user_4147427 Reply BetterMing  Created Apr 5, 2021 08:06:31 (0) (0)
Done  
user_4147427
user_4147427 Reply user_4147427  Created Apr 17, 2021 14:44:13 (0) (0)
Any news?  
user_4147427
user_4147427 Reply user_4147427  Created May 2, 2021 15:08:46 (0) (0)
For future references, I found the memory address containing the State of Charge for the storage unit attached:
37004 - 1 register - unsigned integer - 1 decimal (so you have to divide by 10 to get the % value)  

FusionSolar app showing external storage SOH/SOC

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Hi, was this solved? Can you please share the solution?
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Just finished updating the logger to read (don't have a battery, so haven't worked on a Grafana page) the battery. The registers are in the Huawei.default.py file take a look at https://github.com/basking-in-the-sun2000/solar-logger hope that helps
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