diff --git a/model/ProjectModel/DeviceManage.py b/model/ProjectModel/DeviceManage.py
index ca0b03f..f8d33ad 100644
--- a/model/ProjectModel/DeviceManage.py
+++ b/model/ProjectModel/DeviceManage.py
@@ -43,7 +43,7 @@ class Device():
             self.outputAreas.append(area)
         # print(self.inputAreas)
 
-        # print(area.addressList, area.startAddress, self.inputEndAddress)
+        # print(area.addressList, area.startAddress, area.endAddress, self.outputAreas)
 
     def delArea(self, index, type):
         if type in ["DI", "AI"]:
@@ -61,7 +61,7 @@ class Device():
                 elif index == 0 and inputOrOutput == 1:
                     area.startAddress = self.outputStartAddress
                 else:
-                    area.startAddress = areas[index - 1].endAddress
+                    area.startAddress = areas[index - 1].endAddress + 1
                 area.endAddress = area.startAddress + area.length
                 area.addressList = np.arange(area.startAddress, area.endAddress + 1, area.bytes).tolist()
                 endAddress = area.endAddress
@@ -70,6 +70,7 @@ class Device():
                     self.inputEndAddress = endAddress
                 elif inputOrOutput == 1:
                     self.outputEndAddress = endAddress
+                endAddress = 0
 
 
     def editArea(self, index, type, order, bytes):
@@ -89,8 +90,8 @@ class Device():
 
     def getLength(self, nums, bytes):
         length = int(nums) * int(bytes)
-        length = length / 2
-        return length
+        # length = length / 2
+        return length - 1