Start update AFTER connection.

Author: janiversen

custom_components/modbus/entity.py

@@ -137,6 +137,7 @@ async def _async_update_if_not_in_progress(
     @callback
     def async_run(self) -> None:
         """Remote start entity."""
+        _LOGGER.debug(f"Start updating {self._attr_name}")
         self._async_cancel_update_polling()
         self._async_schedule_future_update(0.1)
         if self._scan_interval > 0:
@@ -177,9 +178,15 @@ def async_hold(self) -> None:
         self._attr_available = False
         self.async_write_ha_state()
 
+    async def async_await_connection(self) -> None:
+        """Wait for first connect."""
+        await self._hub.event_connected.wait()
+        self.async_run()
+
     async def async_base_added_to_hass(self) -> None:
         """Handle entity which will be added."""
-        self.async_run()
+        no_use = asyncio.create_task(self.async_await_connection())
+        _LOGGER.debug(f"connect task {no_use}")
         self.async_on_remove(
             async_dispatcher_connect(self.hass, SIGNAL_STOP_ENTITY, self.async_hold)
         )

custom_components/modbus/manifest.json

@@ -7,5 +7,5 @@
   "issue_tracker": "https://github.com/pymodbus-dev/homeassistant_modbus/issues",
   "loggers": ["pymodbus"],
   "requirements": ["pymodbus==3.11.1"],
-  "version": "1.0.3"
+  "version": "1.0.4"
 }

custom_components/modbus/modbus.py

@@ -256,6 +256,7 @@ def __init__(self, hass: HomeAssistant, client_config: dict[str, Any]) -> None:
         self._async_cancel_listener: Callable[[], None] | None = None
         self._in_error = False
         self._lock = asyncio.Lock()
+        self.event_connected = asyncio.Event()
         self.hass = hass
         self.name = client_config[CONF_NAME]
         self._config_type = client_config[CONF_TYPE]
@@ -325,6 +326,7 @@ async def async_pb_connect(self) -> None:
 
         if self._config_delay:
             await asyncio.sleep(self._config_delay)
+        self.event_connected.set()
 
     async def async_setup(self) -> bool:
         """Set up pymodbus client."""