Help with huawei_solar.py

[javierin]

Hi

I need to add time.sleep(2) to huawei_solar.py right after connection to see if I can get it to fetch data from modbus. Right now I am getting the following error in HomeAssistant:

Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 249, in _async_setup_platform
await asyncio.shield(task)
File "/usr/local/lib/python3.9/concurrent/futures/thread.py", line 52, in run
result = self.fn(*self.args, **self.kwargs)
File "/config/custom_components/huawei_solar/sensor.py", line 122, in setup_platform
HuaweiSolarSensor(inverter, config[CONF_OPTIMIZERS], config[CONF_BATTERY])
File "/config/custom_components/huawei_solar/sensor.py", line 137, in __init__
self._name = self._inverter.get("model_name").value
File "/usr/local/lib/python3.9/site-packages/huawei_solar/huawei_solar.py", line 265, in get
response = self.read_register(reg.register, reg.length)
File "/usr/local/lib/python3.9/site-packages/huawei_solar/huawei_solar.py", line 312, in read_register
raise ReadException(message)
huawei_solar.huawei_solar.ReadException: could not read register value, is an other device already connected?

I am testing a modbus proxy which I can query from other devices within my LAN, but can't get this huaweisolar to work. I have seen the error in **/usr/local/lib/python3.9/site-packages/huawei_solar/huaweisolar.py** but, damn, I can't get to find that file anywhere. How can I reach it to put the 2 seconds sleep and try to get the whole thing working?

Thanks

[JacoboSanchez]

Hi, Looking at the source code it seems that it is already supported to modify the wait time, however 2 seems to be the default value. def __init__(self, host, port="502", timeout=5, wait=2, slave=0):

Try changing in sensor.py

 try:
        inverter = HuaweiSolar(host=config[CONF_HOST], slave=config[CONF_SLAVE])
    except Exception as ex:

with

 try:
        inverter = HuaweiSolar(host=config[CONF_HOST], slave=config[CONF_SLAVE], wait=2)
    except Exception as ex:

You can even add a configuration option in order to try different configurations

[javierin]

Hi Jacobo I managed to get it working changing slave to 0, even though I have the SDongle installed.

Thanks!