diff --git a/Modbus.Net/Modbus.Net/Connector/ComConnector.cs b/Modbus.Net/Modbus.Net/Connector/ComConnector.cs
index 1ed5696..fc67097 100644
--- a/Modbus.Net/Modbus.Net/Connector/ComConnector.cs
+++ b/Modbus.Net/Modbus.Net/Connector/ComConnector.cs
@@ -212,7 +212,7 @@ namespace Modbus.Net
         /// <returns>串口实际读入数据个数 </returns>
         public int ReadComm(out byte[] readBuf, int bufRoom, int howTime, int byteTime)
         {
-            readBuf = new byte[1023];
+            readBuf = new byte[10230];
             Array.Clear(readBuf, 0, readBuf.Length);
 
             if (SerialPort.IsOpen == false)