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flobeier / pvimon

Arduino based Power Monitor for Power-One / ABB Phototovoltaic Inverters
GNU General Public License v3.0
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Communication problem #1

Open stefanopradella opened 2 years ago

stefanopradella commented 2 years ago

Hello, I am trying to read the power output of my inverter (ABB PVI-3.0-TL-OUTD) and I flashed your code as it is, only changing the pin mapping. I am using a Wemos D1 mini board, connected to an RS485 to TTL board (MAX485) through a level shifter. Connections are made as following:

[Board to module]
rxPin (0) -> RO
txPin (5) -> DI
rtsPin (4) -> RE, DE

[Module to inverter]
A -> +T/R
B -> -T/R
RTN -> GND
LNK disconnected

Output I'm getting on the console:

09:17:11.072 -> Error Code 
09:17:11.072 -> Values for Debugging: 
09:17:11.120 -> 0. Wert: 2 1. Wert: 59 2. Wert: 3 3. Wert: 0 4. Wert: 0 5. Wert: 0 6. Wert: 0 7. Wert: 0

The inverter address is correctly set and the terminator resistance is set to ON. I must be missing something, thank you for your help.

flobeier commented 2 years ago

@stefanopradella I never developed the code further beyond a proof of concept, so it is incomplete and probably has bugs. Can you give https://github.com/xreef/ABB_Aurora_Solar_Inverter_Library a try and see if that works for you?

stefanopradella commented 2 years ago

@flobeier Ok thanks I'll try with it