From 37829751835b32dd6fcaba2722c6c425bfe68289 Mon Sep 17 00:00:00 2001
From: Wolfgang Hottgenroth <wolfgang.hottgenroth@icloud.com>
Date: Thu, 24 Nov 2022 17:03:58 +0100
Subject: [PATCH] type of state

---
 src/pv_controller/MeterPublish.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pv_controller/MeterPublish.py b/src/pv_controller/MeterPublish.py
index 0d80243..850bc0b 100644
--- a/src/pv_controller/MeterPublish.py
+++ b/src/pv_controller/MeterPublish.py
@@ -9,7 +9,7 @@ def floatAdaptor(i):
     return float(f"{i:0.2f}") if i else 0.0
 
 def onOffAdaptor(i):
-    return i[0]
+    return i[0] if i else '-1'
 
 
 REGISTERS = [