diff --git a/CommonControls/BaseForm.cs b/CommonControls/BaseForm.cs
index 9570e4d..1fc9d1e 100644
--- a/CommonControls/BaseForm.cs
+++ b/CommonControls/BaseForm.cs
@@ -7,7 +7,9 @@
 using System.Net;
 using System.Net.Sockets;
 using System.Text;
+using System.Threading.Tasks;
 using System.Windows.Forms;
+using static System.Windows.Forms.LinkLabel;
 
 namespace Modbus.Common
 {
@@ -597,6 +599,25 @@ private void buttonPauseLog_Click(object sender, EventArgs e)
             buttonPauseLog.Text = _logPaused ? "Resume" : "Pause";
         }
 
+        private async void buttonSaveLog_ClickAsync(object sender, EventArgs e)
+        {
+            SaveFileDialog saveFileDialog = new SaveFileDialog();
+            saveFileDialog.FileName = "ModbusLog";
+            saveFileDialog.OverwritePrompt = true;
+            saveFileDialog.Filter = "Text files (*.txt)|*.txt|All files (*.*)|*.*";
+            saveFileDialog.DefaultExt = "txt";
+            if (saveFileDialog.ShowDialog() == DialogResult.OK)
+            {
+                using (StreamWriter writer = new StreamWriter(saveFileDialog.FileName, append: true))
+                {
+                    foreach (string line in listBoxCommLog.Items)
+                    {
+                        await writer.WriteLineAsync(line);
+                    }
+                }
+            }
+        }
+
         protected void DriverIncommingData(byte[] data, int len)
         {
             if (_logPaused)
@@ -632,7 +653,7 @@ protected void AppendLog(String log)
             var tmpStr = ">" + now.ToLongTimeString() + ": " + log;
             listBoxCommLog.Items.Add(tmpStr);
             listBoxCommLog.SelectedIndex = listBoxCommLog.Items.Count - 1;
-            listBoxCommLog.SelectedIndex = -1;
+            //listBoxCommLog.SelectedIndex = -1;
         }
 
         #endregion
@@ -737,5 +758,6 @@ private void donate_Click(object sender, EventArgs e)
             string url = "https://www.buymeacoffee.com/r4K2HIB";
             System.Diagnostics.Process.Start(url);
         }
+
     }
 }
diff --git a/CommonControls/BaseForm.designer.cs b/CommonControls/BaseForm.designer.cs
index 8119eba..c7c7e22 100644
--- a/CommonControls/BaseForm.designer.cs
+++ b/CommonControls/BaseForm.designer.cs
@@ -32,6 +32,7 @@ protected void InitializeComponent()
             Modbus.Common.DataTab dataTab2;
             System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(BaseForm));
             this.groupBox4 = new System.Windows.Forms.GroupBox();
+            this.buttonSave = new System.Windows.Forms.Button();
             this.buttonPauseLog = new System.Windows.Forms.Button();
             this.listBoxCommLog = new System.Windows.Forms.ListBox();
             this.buttonClear = new System.Windows.Forms.Button();
@@ -116,6 +117,7 @@ protected void InitializeComponent()
             // 
             // groupBox4
             // 
+            this.groupBox4.Controls.Add(this.buttonSave);
             this.groupBox4.Controls.Add(this.buttonPauseLog);
             this.groupBox4.Controls.Add(this.listBoxCommLog);
             this.groupBox4.Controls.Add(this.buttonClear);
@@ -126,9 +128,18 @@ protected void InitializeComponent()
             this.groupBox4.TabStop = false;
             this.groupBox4.Text = "Communication Log";
             // 
+            // buttonSave
+            // 
+            this.buttonSave.Location = new System.Drawing.Point(760, 19);
+            this.buttonSave.Name = "buttonSave";
+            this.buttonSave.Size = new System.Drawing.Size(86, 28);
+            this.buttonSave.TabIndex = 26;
+            this.buttonSave.Text = "Save";
+            this.buttonSave.Click += new System.EventHandler(this.buttonSaveLog_ClickAsync);
+            // 
             // buttonPauseLog
             // 
-            this.buttonPauseLog.Location = new System.Drawing.Point(660, 19);
+            this.buttonPauseLog.Location = new System.Drawing.Point(576, 19);
             this.buttonPauseLog.Name = "buttonPauseLog";
             this.buttonPauseLog.Size = new System.Drawing.Size(86, 28);
             this.buttonPauseLog.TabIndex = 25;
@@ -148,7 +159,7 @@ protected void InitializeComponent()
             // 
             // buttonClear
             // 
-            this.buttonClear.Location = new System.Drawing.Point(752, 19);
+            this.buttonClear.Location = new System.Drawing.Point(668, 19);
             this.buttonClear.Name = "buttonClear";
             this.buttonClear.Size = new System.Drawing.Size(86, 28);
             this.buttonClear.TabIndex = 24;
@@ -662,5 +673,6 @@ protected void InitializeComponent()
         private System.Windows.Forms.TabPage tabPage1;
         private System.Windows.Forms.TabPage tabPage2;
         private System.Windows.Forms.Button donate;
+        protected System.Windows.Forms.Button buttonSave;
     }
 }
\ No newline at end of file