diff --git a/dynamixel_driver/src/dynamixel_driver/dynamixel_io.py b/dynamixel_driver/src/dynamixel_driver/dynamixel_io.py
index c791bdd..5058268 100755
--- a/dynamixel_driver/src/dynamixel_driver/dynamixel_io.py
+++ b/dynamixel_driver/src/dynamixel_driver/dynamixel_io.py
@@ -64,8 +64,9 @@ def __init__(self, port, baudrate, readback_echo=False):
         try:
             self.serial_mutex = Lock()
             self.ser = None
-            self.ser = serial.Serial(port, baudrate, timeout=0.015)
-            self.port_name = port
+
+            #To add
+            self.ser = serial.Serial(port,baudrate,timeout=0.04)
             self.readback_echo = readback_echo
         except SerialOpenError:
            raise SerialOpenError(port, baudrate)