From 2a0c1fa074ac26e28ea49e645f64cce74b5cb943 Mon Sep 17 00:00:00 2001
From: Matthias Alphart <farmio@alphart.net>
Date: Sat, 27 Nov 2021 19:56:00 +0100
Subject: [PATCH] don't issue requests for non-existing devices (#60416)

---
 homeassistant/components/fronius/__init__.py | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/homeassistant/components/fronius/__init__.py b/homeassistant/components/fronius/__init__.py
index f605e57bac2..2b863fbb505 100644
--- a/homeassistant/components/fronius/__init__.py
+++ b/homeassistant/components/fronius/__init__.py
@@ -198,8 +198,10 @@ class FroniusSolarNet:
         try:
             await coordinator.async_config_entry_first_refresh()
         except ConfigEntryNotReady:
+            # ConfigEntryNotReady raised form FroniusError / KeyError in
+            # DataUpdateCoordinator if request not supported by the Fronius device
+            return None
+        # if no device for the request is installed an empty dict is returned
+        if not coordinator.data:
             return None
-        # keep coordinator only if devices are found
-        # else ConfigEntryNotReady raised form KeyError
-        # in FroniusMeterUpdateCoordinator._get_fronius_device_data
         return coordinator