fixed exception handling

- minor fixes in curly brackets

Sharp7/MsgSocket.cs

@@ -97,12 +97,17 @@ namespace Sharp7
                     Expired = Environment.TickCount - Elapsed > Timeout;
                     // If timeout we clean the buffer
                     if (Expired && (SizeAvail > 0))
+                    {
                         try
                         {
                             byte[] Flush = new byte[SizeAvail];
                             TCPSocket.Receive(Flush, 0, SizeAvail, SocketFlags.None);
                         }
-                    catch { }
+                        catch
+                        {
+                            LastError = S7Consts.errTCPDataReceive;
+                        }
+                    }
                 }
             }
             catch

Sharp7/S7Client.cs

@@ -497,22 +497,17 @@ namespace Sharp7
 		private int Time_ms = 0;
 
 		private void CreateSocket()
-		{
-			try
 		{
 			Socket = new MsgSocket();
 			Socket.ConnectTimeout = DefaultTimeout;
 			Socket.ReadTimeout = DefaultTimeout;
 			Socket.WriteTimeout = DefaultTimeout;
 		}
-			catch
-			{
-			}
-		}
 
 		private int TCPConnect()
 		{           
 			if (_LastError==0)
+			{
 				try
 				{
 					_LastError=Socket.Connect(IPAddress, _PLCPort);
@@ -521,6 +516,7 @@ namespace Sharp7
 				{
 					_LastError = S7Consts.errTCPConnectionFailed;
 				}
+			}
 			return _LastError;
 		}
        
@@ -575,9 +571,12 @@ namespace Sharp7
 				// Receives the S7 Payload          
 				RecvPacket(PDU, 7, Size - IsoHSize);
 			}
+
 			if (_LastError == 0)
+			{
 				return Size;
-			else
+			}
+				
 			return 0;
 		}