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 731caa8..b8a1748 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
@@ -4,7 +4,9 @@ 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.exception.S7Exception;
 import com.qgs.dc.s7.my.s7connector.type.PlcVar;
+import com.sun.scenario.effect.impl.sw.sse.SSEBlend_SRC_OUTPeer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.http.ResponseEntity;
@@ -27,9 +29,9 @@ import java.util.concurrent.TimeUnit;
 public enum S7Client {
     //TODO 步骤1  这里是配置多PLC 的，，，有多个plc 就在这里配置一个枚举类
     //1500    西门子200smart、1200、1500默认的 机架号=0  槽位号=1;  300/400 默认的  机架-0  插槽-2
-    S7_1500("192.168.0.51",0,1,2,PlcVarActual.HeartBeat),
+    S7_1500("192.168.0.51",0,1,1,PlcVarActual.HeartBeat),
     //1500  机架-0  插槽-1
-    S7_1200("192.168.0.52",0,1,2,PlcVarActual.HeartBeatFor1200)
+    S7_1200("192.168.0.52",0,1,1,PlcVarActual.HeartBeatFor1200)
     //后续 在这里扩展 多PLC应用。
 
 
@@ -70,7 +72,7 @@ public enum S7Client {
         connectionPool();
 
         ping();
-
+//
         check_ping();
     }
 
@@ -268,8 +270,8 @@ public enum S7Client {
                     .withSlot(slot) //optional   slot 是插槽号
                     .build();
             return connector;
-        }catch (Exception e){
-            logger.info("创建S7Connector  连接失败");
+        }catch (S7Exception e){
+            logger.info("创建S7Connector  连接失败,原因："+e.getMessage());
             return null;
         }
 
@@ -277,7 +279,10 @@ public enum S7Client {
 
     private void connectionPool(){
         for(int i=0;i<coreSize;i++){
-            connections.add(connect(host,rack,slot));
+            S7Connector connect = connect(host, rack, slot);
+            if(connect!=null){
+                connections.add(connect);
+            }
         }
         //todo 在plc上新增一个 变量来解决 心跳问题 okok
     }
@@ -301,10 +306,15 @@ public enum S7Client {
 
                             }
                         }
-                        Thread.sleep(10000);
                     }catch (Exception e){
                         logger.info(" ( outside check_ping catched ) host:"+host +" ;;(check_ping())   Thread.sleep 异常，异常原因："+e.getMessage());
                     }
+                    try {
+                        Thread.sleep(10000);
+                    } catch (InterruptedException e) {
+                        throw new RuntimeException(e);
+                    }
+
                 }
             }
         });
@@ -358,11 +368,17 @@ public enum S7Client {
                                 }
                             }
                         }
-                        Thread.sleep(30000);
+
                     }catch (Exception e){
                         e.printStackTrace();
                         logger.info(" ( outside ping catched ) host:"+host +" ;;(ping)    "+e.getMessage());
                     }
+
+                    try {
+                        Thread.sleep(30000);
+                    } catch (InterruptedException e) {
+                        throw new RuntimeException(e);
+                    }
                 }
             }
         });