diff --git a/pom.xml b/pom.xml
index 75a148e..70583a6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,24 +21,30 @@
         <dependency>
             <groupId>org.eclipse.milo</groupId>
             <artifactId>sdk-client</artifactId>
-            <version>0.6.3</version>
+            <version>0.6.4</version>
         </dependency>
 
         <dependency>
             <groupId>org.eclipse.milo</groupId>
             <artifactId>stack-client</artifactId>
-            <version>0.6.3</version>
+            <version>0.6.4</version>
         </dependency>
 
         <dependency>
             <groupId>org.eclipse.milo</groupId>
             <artifactId>stack-server</artifactId>
-            <version>0.6.3</version>
+            <version>0.6.4</version>
         </dependency>
         <dependency>
             <groupId>org.eclipse.milo</groupId>
             <artifactId>sdk-server</artifactId>
-            <version>0.6.3</version>
+            <version>0.6.4</version>
+        </dependency>
+        <!-- https://mvnrepository.com/artifact/com.google.guava/guava -->
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>30.1.1-jre</version>
         </dependency>
         <!-- OPC UA 模块依赖                                            结束       -->
 
diff --git a/src/main/java/com/qgs/dc/s7/controller/S7Controller.java b/src/main/java/com/qgs/dc/s7/controller/S7DemoController.java
similarity index 91%
rename from src/main/java/com/qgs/dc/s7/controller/S7Controller.java
rename to src/main/java/com/qgs/dc/s7/controller/S7DemoController.java
index 85c3707..f660ab3 100644
--- a/src/main/java/com/qgs/dc/s7/controller/S7Controller.java
+++ b/src/main/java/com/qgs/dc/s7/controller/S7DemoController.java
@@ -1,9 +1,6 @@
 package com.qgs.dc.s7.controller;
 
 import com.qgs.dc.opcua.controller.R;
-import com.qgs.dc.s7.my.s7connector.api.DaveArea;
-import com.qgs.dc.s7.my.s7connector.api.S7Connector;
-import com.qgs.dc.s7.my.s7connector.api.utils.ByteUtils;
 import com.qgs.dc.s7.my.s7connector.enmuc.PlcVarActual;
 import com.qgs.dc.s7.my.s7connector.enmuc.S7Client;
 
@@ -16,13 +13,12 @@ import org.springframework.web.bind.annotation.*;
 
 import java.io.UnsupportedEncodingException;
 import java.text.ParseException;
-import java.util.ArrayList;
 import java.util.List;
 
 @RestController
 @RequestMapping("/s7")
-public class S7Controller {
-    private static final Logger logger = LoggerFactory.getLogger(S7Controller.class);
+public class S7DemoController {
+    private static final Logger logger = LoggerFactory.getLogger(S7DemoController.class);
 
     @Autowired
     S7Service s7Service;
diff --git a/src/main/java/com/qgs/dc/s7/my/s7connector/MainForRead.java b/src/main/java/com/qgs/dc/s7/my/s7connector/MainForRead.java
index 9ba192e..438cd82 100644
--- a/src/main/java/com/qgs/dc/s7/my/s7connector/MainForRead.java
+++ b/src/main/java/com/qgs/dc/s7/my/s7connector/MainForRead.java
@@ -4,6 +4,7 @@ import com.qgs.dc.s7.my.s7connector.api.DaveArea;
 import com.qgs.dc.s7.my.s7connector.api.S7Connector;
 import com.qgs.dc.s7.my.s7connector.api.factory.S7ConnectorFactory;
 import com.qgs.dc.s7.my.s7connector.api.utils.ByteUtils;
+import com.qgs.dc.s7.my.s7connector.enmuc.S7Client;
 
 import java.util.List;
 
@@ -19,13 +20,15 @@ public class MainForRead {
         //缺陷： 不支持 DB3.1.1
 
         //Create connection
-        S7Connector connector =
-                S7ConnectorFactory
-                        .buildTCPConnector()
-                        .withHost("192.168.0.51")
-                        .withRack(0) //optional   rack 是机架号
-                        .withSlot(0) //optional   slot 是插槽号
-                        .build();
+//        S7Connector connector =
+//                S7ConnectorFactory
+//                        .buildTCPConnector()
+//                        .withHost("192.168.0.51")
+//                        .withRack(0) //optional   rack 是机架号
+//                        .withSlot(0) //optional   slot 是插槽号
+//                        .build();
+
+        S7Connector connector = S7Client.S7_1200.getConnector();
 
 
         //            // [0]
diff --git a/src/main/java/com/qgs/dc/s7/my/s7connector/enmuc/S7Client.java b/src/main/java/com/qgs/dc/s7/my/s7connector/enmuc/S7Client.java
index f33eb97..b6d52d2 100644
--- a/src/main/java/com/qgs/dc/s7/my/s7connector/enmuc/S7Client.java
+++ b/src/main/java/com/qgs/dc/s7/my/s7connector/enmuc/S7Client.java
@@ -101,9 +101,10 @@ public enum S7Client {
                         for(int z=0;z<c;z++){
                             S7Connector connect = connect(host, rack, slot);
                             if(connect!=null){
+                                logger.info("(check_ping())    检测到有断线 ==》  现在断线恢复成功");
                                 connections.add(connect);
                             }else {
-                                logger.info("（check_ping）   断线重连出现异常。。");
+                                logger.info("(check_ping())    检测到有断线 ==》  现在断线恢复失败");
                             }
 
                         }
@@ -111,13 +112,14 @@ public enum S7Client {
                     try {
                         Thread.sleep(10000);
                     }catch (Exception e){
-                        logger.info("（check_ping）"+e.getMessage());
+                        logger.info("(check_ping())   Thread.sleep 异常，异常原因："+e.getMessage());
                     }
                 }
             }
         });
     }
 
+    //todo 当网络断开之后，下面这个ping() 循环不生效。。  可能是read = connector.read( 出来是null，但还是继续通过了，也可能是 ，，当连接全部断开后 getConnector(); 应该是取不到数据的。。也就会报null。这个明天再看看
     private void ping(){
        executor.execute(new Runnable() {
             @Override
@@ -137,7 +139,7 @@ public enum S7Client {
                             System.out.println(connector.hashCode()+" :  ping");
                             Thread.sleep(100);
                         }catch (Exception e){
-                            logger.info(connector.hashCode()+" :  connection error"+"errMessage is : "+e.getMessage());
+                            logger.info("(ping)    "+connector.hashCode()+" :  connection error"+"errMessage is : "+e.getMessage());
                             //先把 socket close掉
                             try {
                                 connector.close();
@@ -145,22 +147,20 @@ public enum S7Client {
                                 //如果是网络波动照成的socket断开。 等个1S 再重连试试
                                 Thread.sleep(100);
                             }catch (Exception ee){
-                                logger.info("connector.close() 出现异常，errMessage is : "+ee.getMessage());
+                                logger.info("(ping)    "+"connector.close() 出现异常，errMessage is : "+ee.getMessage());
                             }
+                        }
 
-
-                            //todo 把之前的连接close 掉，然后新增一个连接到connections
-
-                            if(connections.size()!=coreSize){
-                                int c = coreSize-connections.size();
-                                for(int z=0;z<c;z++){
-                                    S7Connector connect = connect(host, rack, slot);
-                                    if(connect!=null){
-                                        connections.add(connect);
-                                    }else {
-                                        logger.info("ping时候出现异常，尝试重连， 重连时候还是 出现异常。。");
-                                    }
-
+                        //todo 把之前的连接close 掉，然后新增一个连接到connections
+                        if(connections.size()!=coreSize){
+                            int c = coreSize-connections.size();
+                            for(int z=0;z<c;z++){
+                                S7Connector connect = connect(host, rack, slot);
+                                if(connect!=null){
+                                    logger.info("(ping)    "+"ping时候出现异常，尝试重连， 重连成功!!");
+                                    connections.add(connect);
+                                }else {
+                                    logger.info("(ping)    "+"ping时候出现异常，尝试重连， 重连时候还是 出现异常。。");
                                 }
                             }
                         }
@@ -170,7 +170,7 @@ public enum S7Client {
                         Thread.sleep(30000);
                     }catch (Exception e){
                         e.printStackTrace();
-                        logger.info(e.getMessage());
+                        logger.info("(ping)    "+e.getMessage());
                     }
                 }
             }