diff --git a/app/src/main/java/com/example/bpa/helper/ModbusTcpServer.java b/app/src/main/java/com/example/bpa/helper/ModbusTcpServer.java
index 8aeb7b0..f857380 100644
--- a/app/src/main/java/com/example/bpa/helper/ModbusTcpServer.java
+++ b/app/src/main/java/com/example/bpa/helper/ModbusTcpServer.java
@@ -201,7 +201,7 @@ public class ModbusTcpServer {
                 .setRetries(0)
                 .setEncapsulated(false)
                 .setKeepAlive(true);
-        ConnectPLC();
+        //ConnectPLC();
     }
 
     /**
@@ -257,11 +257,15 @@ public class ModbusTcpServer {
                 @Override
                 public void Run() throws InterruptedException {
                     try {
-                        ModbusMaster master= ModbusTcpHelper.get().getModbusMaster();
-                        if (master==null || master.isConnected() == false) {
-                            ConnectPLC();
+                        boolean status =ping2(ConfigName.getInstance().Address,1,1);
+                        if(status)
+                        {
+                            ModbusMaster master= ModbusTcpHelper.get().getModbusMaster();
+                            if (master==null || master.isConnected() == false) {
+                                ConnectPLC();
+                            }
+                            Thread.sleep(20000);
                         }
-                        Thread.sleep(20000);
                     } catch (Exception e) {
                         Log.i("PLC", "PLC重连接失败!"+e.getMessage());
                     }