2014-08-01 update 6 Add comment

NA200H/ModBus.Net/ModbusTcpProtocalLinker.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ModBus.Net
+{
+    class ModbusTcpProtocalLinker : TcpProtocalLinker
+    {
+        public override bool CheckRight(byte[] content)
+        {
+            if (content[1] > 127)
+            {
+                throw new ModbusProtocalErrorException(content[2]);
+            }
+            return true;
+        }
+    }
+}