diff --git a/RbFreqStandMeasure/bin/Debug/RbFreqStandMeasure.exe b/RbFreqStandMeasure/bin/Debug/RbFreqStandMeasure.exe
index 8ce2a7f..3502ee5 100644
--- a/RbFreqStandMeasure/bin/Debug/RbFreqStandMeasure.exe
+++ b/RbFreqStandMeasure/bin/Debug/RbFreqStandMeasure.exe
Binary files differ

diff --git a/RbFreqStandMeasure/bin/Debug/RbFreqStandMeasure.exe b/RbFreqStandMeasure/bin/Debug/RbFreqStandMeasure.exe
index 8ce2a7f..3502ee5 100644
--- a/RbFreqStandMeasure/bin/Debug/RbFreqStandMeasure.exe
+++ b/RbFreqStandMeasure/bin/Debug/RbFreqStandMeasure.exe
Binary files differ
diff --git a/RbFreqStandMeasure/counter/CounterCtrlForm.cs b/RbFreqStandMeasure/counter/CounterCtrlForm.cs
index c3d14de..2962c42 100644
--- a/RbFreqStandMeasure/counter/CounterCtrlForm.cs
+++ b/RbFreqStandMeasure/counter/CounterCtrlForm.cs
@@ -542,6 +542,17 @@
             benDelete.Enabled = false;
             btn_dropDetecModel.Enabled = false;
             string[] ids = gPIBService.getId();
+            int connect = isConnect(text_signal.Text, text_counterIp.Text);
+            if (connect == -1)
+            {
+                MessageBox.Show("未连接信号源");
+                return;
+            }
+            else if (connect == -2)
+            {
+                MessageBox.Show("未连接计数器");
+                return;
+            }
             //string[] ips = tcpService.getId();
             /*if (ids != null && ids.Length > 0)
             {
@@ -564,7 +575,7 @@
             }
             else
             {*/
-                string[] arr = text_counterIp.Text.Split('.');
+            string[] arr = text_counterIp.Text.Split('.');
                 if (arr.Length != 4)
                 {
                     MessageBox.Show("请输入正确的频率计数器IP！");
@@ -858,5 +869,15 @@
             }
         }
 
+        private int isConnect(string id, string ip)
+        {
+            int result = 0;
+            if (gPIBService.open(id) == -1)
+                result = -1;
+            else if (tcpService.open(ip) == -1)
+                result = -2;
+            return result;
+        }
+
     }
 }