diff --git a/das-dn/inc/public.h b/das-dn/inc/public.h
index 3db29c5d..5fb18517 100644
--- a/das-dn/inc/public.h
+++ b/das-dn/inc/public.h
@@ -42,9 +42,9 @@ typedef int	SOCKET;
 #include "zlog/zlog.h"
 
 //#define MEMERY_1M       65536   //设置位64K
-#define MEMERY_1M       (2 << 20)   //设置位64K
-#define DELAY_RUN       5000
-#define DELAY_TIMER     50      //ms
+#define MEMERY_1M       (2 << 20)
+#define DELAY_RUN       20000
+#define DELAY_TIMER     50
 #define TIME_BASE       (1000 / DELAY_TIMER)
 #define TIME_TICKS      (DELAY_TIMER * 1000)
 #define MAX_PATH        260
diff --git a/das-dn/third_party/AdsLib/AdsDevice.cpp b/das-dn/third_party/AdsLib/AdsDevice.cpp
index 5a336270..40fad4a3 100644
--- a/das-dn/third_party/AdsLib/AdsDevice.cpp
+++ b/das-dn/third_party/AdsLib/AdsDevice.cpp
@@ -38,6 +38,15 @@ AdsDevice::AdsDevice(const std::string& ipV4, AmsNetId amsNetId, uint16_t port)
     }
 }
 
+AdsDevice::~AdsDevice()
+{
+    if (m_Connected == true)
+    {
+        DisconnectTarget(*m_NetId.get());
+        m_Connected = false;
+    }
+}
+
 long AdsDevice::DeleteNotificationHandle(uint32_t handle) const
 {
     if (handle) {
diff --git a/das-dn/third_party/AdsLib/AdsDevice.h b/das-dn/third_party/AdsLib/AdsDevice.h
index a4d59440..8aad1bbf 100644
--- a/das-dn/third_party/AdsLib/AdsDevice.h
+++ b/das-dn/third_party/AdsLib/AdsDevice.h
@@ -58,6 +58,7 @@ using AdsHandle = AdsResource<uint32_t>;
 
 struct AdsDevice {
     AdsDevice(const std::string& ipV4, AmsNetId netId, uint16_t port);
+    ~AdsDevice();
 
     AdsDeviceInfo GetDeviceInfo() const;