Solax 2 inverters working in parallel mode (master + slave1)

[xavi104]

Hi,

I would like to know if it is possible to access to the slave main registers (pv power, ac power, soc, ...) only with the communication with the master inverter in a installation that is working in parallel mode. I know the through the LCD of the master inverter you can do it.

Thanks in advance,

[wills106]

When you setup the Integration did you tick "Parallel Mode (Master-Slave)"?

[xavi104]

Yes, I did it with and without checking that option and the result was the same in both cases. Only we read the paramaters of one inverter and I think it didn't reflect the sum of both.

[wills106]

Don't "PM PV Power 1" & "PM I2 PV Power 1" etc return the values?

[andreibutu]

Hello, i have the same issue.
i have 2 inverters X3-Hybrid-G4 , in parallel + X1/X3-EVC .
For master, i m using an old LAN dongle, for Slave i have a wifi 3 black dongle.If i add the slave, it reads only data from Slave, having "Parallel Mode (Master-Slave)"enabled.
If i add the master ip, i have only 4 entities. could that be this old LAN dongle is not supported? see below debug logging.

2023-10-06 22:39:53.133 INFO (MainThread) [custom_components.solax_modbus.sensor] computedRegs: {} 2023-10-06 22:39:53.142 ERROR (MainThread) [pymodbus.logging] Connection to (192.168.0.61, 502) failed: [Errno 111] Connection refused 2023-10-06 22:39:58.160 ERROR (MainThread) [pymodbus.logging] Connection to (192.168.0.61, 502) failed: [Errno 111] Connection refused 2023-10-06 22:40:43.561 ERROR (MainThread) [pymodbus.logging] Connection to (192.168.0.61, 502) failed: [Errno 111] Connection refused 2023-10-06 22:47:01.354 ERROR (MainThread) [pymodbus.logging] Connection to (192.168.0.61, 502) failed: [Errno 111] Connection refused 2023-10-06 22:47:01.354 WARNING (MainThread) [custom_components.solax_modbus.plugin_solax] MasterXTZ: attempt to read serialnumber failed at 0x0 data: None

what options do i have? to buy another WIFI3 dongle for master? how is the correct procedure to add 2 parallel inveters in HA?

1. add the master only and select "Parallel Mode (Master-Slave)".
2. add both master and slave and select "Parallel Mode (Master-Slave)"

thank you!
Andrei

[romankysely]

Don't "PM PV Power 1" & "PM I2 PV Power 1" etc return the values?

Willy, these values are working fine but for the 2nd invertor (Slave) do not exist sensor.solax_I2_pv_power_total as for Master sensor.solax_pv_power_total exist. There are meny other entities which does not have representative entities in Slave.