From 314542643235e0f3440001851aaaa1443f32da01 Mon Sep 17 00:00:00 2001
From: Peter Butzhammer <peter.butzhammer@evopro-ag.de>
Date: Thu, 8 Feb 2024 11:02:16 +0100
Subject: [PATCH] Improve error message

---
 Sharp7.Rx/S7VariableNameParser.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sharp7.Rx/S7VariableNameParser.cs b/Sharp7.Rx/S7VariableNameParser.cs
index bf5d7ca..2355b24 100644
--- a/Sharp7.Rx/S7VariableNameParser.cs
+++ b/Sharp7.Rx/S7VariableNameParser.cs
@@ -52,7 +52,7 @@ internal class S7VariableNameParser : IS7VariableNameParser
 
         var match = regex.Match(input);
         if (!match.Success)
-            throw new InvalidS7AddressException($"Invalid S7 address: \"{input}\"", input);
+            throw new InvalidS7AddressException($"Invalid S7 address \"{input}\". Expect format \"DB<dbNo>.<type><startByte>(.<length>)\".", input);
 
         var operand = (Operand) Enum.Parse(typeof(Operand), match.Groups["operand"].Value, true);