1

source/DeviceLibrary/DeviceLibrary/IO/AIOBOX/AIOBOXManager.cs

@@ -336,19 +336,27 @@ namespace OnlineStore.DeviceLibrary
 
         public override void CloseAllConnection()
         {
-            if (conTimer != null)
-            {
-                conTimer.Stop();
-            }
-            if (AIOMap == null)
+            try
             {
-                return;
+                if (conTimer != null)
+                {
+                    conTimer.Stop();
+                }
+                if (AIOMap == null)
+                {
+                    return;
+                }
+                foreach (AIOBOX aio in AIOMap.Values)
+                {
+                    aio.Close();
+                }
             }
-            foreach (AIOBOX aio in AIOMap.Values)
+            catch (Exception ex)
             {
-                aio.Close();
+                LogUtil.error("AIO CloseAllConnection Error:" + ex.ToString());
             }
             AIOMap.Clear();
+
         }
         public override void WriteSingleDO(string ioIp, byte slaveId, ushort StartAddress, IO_VALUE onOff)
         {