From 15692e5c4a6d7ebd1297f5b5a2d6386d1fb57955 Mon Sep 17 00:00:00 2001
From: Steffen Engl <englbit@mac.com>
Date: Tue, 3 Nov 2020 07:36:08 +0100
Subject: [PATCH] NullReferenceException Fixed

In very very few cases (I had 5 projects out of ~300 total that each had 1 block that was causing this error)
---
 LibNoDaveConnectionLibrary/PLCs/S7_xxx/MC7/CallConverter.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/LibNoDaveConnectionLibrary/PLCs/S7_xxx/MC7/CallConverter.cs b/LibNoDaveConnectionLibrary/PLCs/S7_xxx/MC7/CallConverter.cs
index 9123449b..20e50859 100644
--- a/LibNoDaveConnectionLibrary/PLCs/S7_xxx/MC7/CallConverter.cs
+++ b/LibNoDaveConnectionLibrary/PLCs/S7_xxx/MC7/CallConverter.cs
@@ -601,7 +601,7 @@ public static void ConvertUCToCall(S7FunctionBlock myFct, S7ProgrammFolder myFld
                                             if (pRow != null) newPar.Value = ((S7DataRow)pRow).StructuredName.Substring(((S7DataRow)pRow).StructuredName.IndexOf('.') + 1);
 
                                         }
-                                        else
+                                        else if (par != null)
                                         {
                                             switch (((S7DataRow)s7DataRow).DataType)
                                             {