diff --git a/WindowsFormsApp6/MainForm.cs b/WindowsFormsApp6/MainForm.cs
index 25914a9..0c20ee1 100644
--- a/WindowsFormsApp6/MainForm.cs
+++ b/WindowsFormsApp6/MainForm.cs
@@ -21,7 +21,7 @@ namespace WindowsFormsApp6
         private Form2 form2Instance;
         private Form3 form3Instance;
         private System.Windows.Forms.Timer timeUpdateTimer;
-        
+
         // 串口和Modbus相关
         private SerialPort _serialPort;
         private IModbusMaster _modbusMaster;
@@ -29,10 +29,10 @@ namespace WindowsFormsApp6
 
         // Form1历史数据缓存（用于累积显示）
         private List<double> form1TimeValues = new List<double>();
-        
+
         // Form2历史数据缓存（用于累积显示）
         private List<Form2SampleData> form2SampleDataList = new List<Form2SampleData>();
-        
+
         // Form2单个试样数据结构
         private class Form2SampleData
         {
@@ -52,7 +52,7 @@ namespace WindowsFormsApp6
             InitializeSerialPortAndModbus();
             CenterInfoControls();
             CenterBottomButtons();
-            
+
             // 监听窗体大小变化以重新居中按钮
             this.Resize += (s, e) => CenterBottomButtons();
         }
@@ -62,7 +62,7 @@ namespace WindowsFormsApp6
             // 初始化时间显示
             textBox7.Text = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
             textBox7.ReadOnly = true; // 设置为只读
-            
+
             // 创建计时器，每秒更新一次
             timeUpdateTimer = new System.Windows.Forms.Timer();
             timeUpdateTimer.Interval = 1000;
@@ -118,16 +118,16 @@ namespace WindowsFormsApp6
 
                 // 打开串口
                 _serialPort.Open();
-                
+
                 // 创建Modbus RTU主站
                 _modbusMaster = ModbusSerialMaster.CreateRtu(_serialPort);
                 _modbusMaster.Transport.WaitToRetryMilliseconds = 200;
                 _modbusMaster.Transport.Retries = 1;
                 _modbusMaster.Transport.ReadTimeout = 500;
-                
+
                 // 启动定时读取
                 _readTimer.Start();
-                
+
                 ShowInfoMsg($"串口 {portName} 初始化成功");
                 return true;
             }
@@ -251,7 +251,7 @@ namespace WindowsFormsApp6
                 // 读取三个信号量（M103, M252, M310）
                 // Modbus地址：M103 = 103, M252 = 252, M310 = 310
                 // 使用ReadCoils读取线圈状态（M区）
-                
+
                 bool signalM103 = ReadCoil(slaveId, 103); // Form1信号量
                 bool signalM252 = ReadCoil(slaveId, 252); // Form2 数据采集信号量
                 bool signalM253 = ReadCoil(slaveId, 253); // Form2 设备停止信号量
@@ -335,10 +335,10 @@ namespace WindowsFormsApp6
                 // 使用反射获取Form1的私有字段
                 var sampleDataTableField = form1Instance.GetType()
                     .GetField("sampleDataTable", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
-                
+
                 var currentSampleCountField = form1Instance.GetType()
                     .GetField("currentSampleCount", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
-                
+
                 if (sampleDataTableField == null || currentSampleCountField == null)
                 {
                     System.Diagnostics.Debug.WriteLine("无法获取Form1的私有字段");
@@ -347,7 +347,7 @@ namespace WindowsFormsApp6
 
                 DataTable dataTable = sampleDataTableField.GetValue(form1Instance) as DataTable;
                 int currentSampleCount = (int)currentSampleCountField.GetValue(form1Instance);
-                
+
                 if (dataTable == null)
                 {
                     System.Diagnostics.Debug.WriteLine("DataTable为空");
@@ -356,7 +356,7 @@ namespace WindowsFormsApp6
 
                 // 转换寄存器值为实际时间（秒）
                 double timeValue = registers[0];
-                
+
                 // 检查NaN
                 if (double.IsNaN(timeValue) || double.IsInfinity(timeValue))
                 {
@@ -366,7 +366,7 @@ namespace WindowsFormsApp6
 
                 // 添加到历史数据
                 form1TimeValues.Add(timeValue);
-                
+
                 // 新试样的索引
                 int newSampleIndex = form1TimeValues.Count;
 
@@ -378,11 +378,11 @@ namespace WindowsFormsApp6
                     {
                         dataTable.Columns.Add($"试样{newSampleIndex}", typeof(double));
                     }
-                    
+
                     // 更新currentSampleCount
                     currentSampleCount = newSampleIndex;
                     currentSampleCountField.SetValue(form1Instance, currentSampleCount);
-                    
+
                     // 重新初始化DataGridView以显示新列
                     this.Invoke(new Action(() =>
                     {
@@ -390,7 +390,7 @@ namespace WindowsFormsApp6
                             .GetMethod("InitializeDataGridView", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
                         initMethod?.Invoke(form1Instance, null);
                     }));
-                    
+
                     // 重新获取DataTable（可能已重新绑定）
                     dataTable = sampleDataTableField.GetValue(form1Instance) as DataTable;
                 }
@@ -401,7 +401,7 @@ namespace WindowsFormsApp6
                 // 创建时间行
                 DataRow timeRow = dataTable.NewRow();
                 timeRow["序号"] = "时间(s)";
-                
+
                 // 填充所有历史数据
                 for (int i = 0; i < form1TimeValues.Count; i++)
                 {
@@ -410,7 +410,7 @@ namespace WindowsFormsApp6
                         timeRow[$"试样{i + 1}"] = form1TimeValues[i];
                     }
                 }
-                
+
                 // 其余列设为空
                 for (int i = form1TimeValues.Count + 1; i <= currentSampleCount; i++)
                 {
@@ -419,13 +419,13 @@ namespace WindowsFormsApp6
                         timeRow[$"试样{i}"] = DBNull.Value;
                     }
                 }
-                
+
                 dataTable.Rows.Add(timeRow);
 
                 // 计算并添加平均值行：每5个试样一组
                 int totalSamples = form1TimeValues.Count;
                 int groupCount = (int)Math.Ceiling((double)totalSamples / 5.0);
-                
+
                 for (int groupIndex = 0; groupIndex < groupCount; groupIndex++)
                 {
                     int startSample = groupIndex * 5 + 1;
@@ -444,7 +444,7 @@ namespace WindowsFormsApp6
                     if (validCount > 0)
                     {
                         double groupAvg = groupSum / validCount;
-                        
+
                         // 检查NaN
                         if (double.IsNaN(groupAvg) || double.IsInfinity(groupAvg))
                         {
@@ -454,7 +454,7 @@ namespace WindowsFormsApp6
                         // 创建平均值行
                         DataRow avgRow = dataTable.NewRow();
                         avgRow["序号"] = $"平均时间(s) 试样{startSample}-{endSample}";
-                        
+
                         // 只在该组第一个试样列显示平均值，其他列设置为DBNull
                         for (int i = 1; i <= currentSampleCount; i++)
                         {
@@ -471,7 +471,7 @@ namespace WindowsFormsApp6
                                 }
                             }
                         }
-                        
+
                         dataTable.Rows.Add(avgRow);
                     }
                 }
@@ -484,7 +484,7 @@ namespace WindowsFormsApp6
                         .GetMethod("RefreshDataGridView", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
                     refreshMethod?.Invoke(form1Instance, null);
                 }));
-                
+
                 System.Diagnostics.Debug.WriteLine($"Form1数据读取成功：试样{newSampleIndex}，时间={timeValue:F2}秒，累计{totalSamples}个试样");
             }
             catch (Exception ex)
@@ -506,30 +506,33 @@ namespace WindowsFormsApp6
                 // 读取初始重量（D420，2个寄存器，浮点数，单位：g，精度0.01g）
                 ushort[] initialWeightReg = _modbusMaster.ReadHoldingRegisters(slaveId, 420, 2);
                 double initialWeight = ConvertRegistersToDouble(initialWeightReg);
-                
+                initialWeight = ModbusUshortToFloat(initialWeightReg[1], initialWeightReg[0]);
+
                 // 读取浸润后重量（D422，2个寄存器，浮点数，单位：g，精度0.01g）
                 ushort[] afterWeightReg = _modbusMaster.ReadHoldingRegisters(slaveId, 422, 2);
                 double afterWeight = ConvertRegistersToDouble(afterWeightReg);
-                
+                afterWeight = ModbusUshortToFloat(afterWeightReg[1], afterWeightReg[0]);
+
                 // 读取浸润时间（D402，1个寄存器，整数，单位：秒）
                 ushort[] soakTimeReg = _modbusMaster.ReadHoldingRegisters(slaveId, 402, 1);
                 int soakTime = ConvertSingleRegisterToInt(soakTimeReg[0]);
-                
+
                 // 读取悬挂时间（D406，1个寄存器，整数，单位：秒）
                 ushort[] hangTimeReg = _modbusMaster.ReadHoldingRegisters(slaveId, 406, 1);
                 int hangTime = ConvertSingleRegisterToInt(hangTimeReg[0]);
-                
+
                 // 读取运行速度（D410，1个寄存器，整数，单位：mm/min）
-                ushort[] runSpeedReg = _modbusMaster.ReadHoldingRegisters(slaveId, 410, 1);
-                int runSpeed = ConvertSingleRegisterToInt(runSpeedReg[0]);
+                ushort[] runSpeedReg = _modbusMaster.ReadHoldingRegisters(slaveId, 310, 2);
+                double runSpeed = ConvertRegistersToDouble(runSpeedReg);
+                runSpeed = ModbusUshortToFloat(runSpeedReg[1], runSpeedReg[0]);
 
                 // 使用反射获取Form2的私有字段
                 var sampleDataTableField = form2Instance.GetType()
                     .GetField("sampleDataTable", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
-                
+
                 var currentSampleCountField = form2Instance.GetType()
                     .GetField("currentSampleCount", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
-                
+
                 if (sampleDataTableField == null || currentSampleCountField == null)
                 {
                     System.Diagnostics.Debug.WriteLine("无法获取Form2的私有字段");
@@ -538,7 +541,7 @@ namespace WindowsFormsApp6
 
                 DataTable dataTable = sampleDataTableField.GetValue(form2Instance) as DataTable;
                 int currentSampleCount = (int)currentSampleCountField.GetValue(form2Instance);
-                
+
                 if (dataTable == null)
                 {
                     System.Diagnostics.Debug.WriteLine("DataTable为空");
@@ -552,7 +555,7 @@ namespace WindowsFormsApp6
                     AfterWeight = afterWeight,
                     SoakTime = soakTime,
                     HangTime = hangTime,
-                    RunSpeed = runSpeed
+                    RunSpeed = (int)runSpeed
                 });
 
                 // 新试样的索引
@@ -566,11 +569,11 @@ namespace WindowsFormsApp6
                     {
                         dataTable.Columns.Add($"试样{newSampleIndex}", typeof(object));
                     }
-                    
+
                     // 更新currentSampleCount
                     currentSampleCount = newSampleIndex;
                     currentSampleCountField.SetValue(form2Instance, currentSampleCount);
-                    
+
                     // 重新初始化DataGridView以显示新列
                     this.Invoke(new Action(() =>
                     {
@@ -578,7 +581,7 @@ namespace WindowsFormsApp6
                             .GetMethod("InitializeDataGridView", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
                         initMethod?.Invoke(form2Instance, null);
                     }));
-                    
+
                     // 重新获取DataTable（可能已重新绑定）
                     dataTable = sampleDataTableField.GetValue(form2Instance) as DataTable;
                 }
@@ -634,9 +637,9 @@ namespace WindowsFormsApp6
                 {
                     if (form2SampleDataList[i].InitialWeight > 0)
                     {
-                        absorptions[i] = ((form2SampleDataList[i].AfterWeight - form2SampleDataList[i].InitialWeight) 
+                        absorptions[i] = ((form2SampleDataList[i].AfterWeight - form2SampleDataList[i].InitialWeight)
                             / form2SampleDataList[i].InitialWeight) * 100;
-                        
+
                         // 检查NaN
                         if (double.IsNaN(absorptions[i]) || double.IsInfinity(absorptions[i]))
                         {
@@ -720,7 +723,7 @@ namespace WindowsFormsApp6
 
                 // 计算并添加统计行：每5个试样一组
                 int groupCount = (int)Math.Ceiling((double)totalSamples / 5.0);
-                
+
                 for (int groupIndex = 0; groupIndex < groupCount; groupIndex++)
                 {
                     int startSample = groupIndex * 5 + 1;
@@ -739,13 +742,13 @@ namespace WindowsFormsApp6
                         DataRow avgRow = dataTable.NewRow();
                         avgRow["序号"] = $"液体吸收量平均值(%) 试样{startSample}-{endSample}";
                         double avgAbsorption = groupAbsorptions.Average();
-                        
+
                         // 检查NaN
                         if (double.IsNaN(avgAbsorption) || double.IsInfinity(avgAbsorption))
                         {
                             avgAbsorption = 0;
                         }
-                        
+
                         // 只在该组第一个试样列显示平均值，其他列设置为DBNull
                         for (int i = 1; i <= currentSampleCount; i++)
                         {
@@ -768,13 +771,13 @@ namespace WindowsFormsApp6
                         DataRow maxRow = dataTable.NewRow();
                         maxRow["序号"] = $"液体吸收量最大值(%) 试样{startSample}-{endSample}";
                         double maxAbsorption = groupAbsorptions.Max();
-                        
+
                         // 检查NaN
                         if (double.IsNaN(maxAbsorption) || double.IsInfinity(maxAbsorption))
                         {
                             maxAbsorption = 0;
                         }
-                        
+
                         // 只在该组第一个试样列显示最大值，其他列设置为DBNull
                         for (int i = 1; i <= currentSampleCount; i++)
                         {
@@ -797,13 +800,13 @@ namespace WindowsFormsApp6
                         DataRow stdDevRow = dataTable.NewRow();
                         stdDevRow["序号"] = $"标准偏差 试样{startSample}-{endSample}";
                         double stdDev = groupAbsorptions.Count > 1 ? CalculateStandardDeviation(groupAbsorptions.ToArray()) : 0;
-                        
+
                         // 检查NaN
                         if (double.IsNaN(stdDev) || double.IsInfinity(stdDev))
                         {
                             stdDev = 0;
                         }
-                        
+
                         // 只在该组第一个试样列显示标准偏差，其他列设置为DBNull
                         for (int i = 1; i <= currentSampleCount; i++)
                         {
@@ -847,17 +850,17 @@ namespace WindowsFormsApp6
         private double ConvertRegistersToDouble(ushort[] registers)
         {
             if (registers == null || registers.Length < 2) return 0.0;
-            
+
             // 组合两个寄存器为32位整数（高位在前）
             uint value = ((uint)registers[0] << 16) | registers[1];
             double result = value / 100.0;
-            
+
             // 检查NaN
             if (double.IsNaN(result) || double.IsInfinity(result))
             {
                 return 0.0;
             }
-            
+
             return result;
         }
 
@@ -867,7 +870,7 @@ namespace WindowsFormsApp6
         private int ConvertRegistersToInt(ushort[] registers)
         {
             if (registers == null || registers.Length < 2) return 0;
-            
+
             // 组合两个寄存器为32位整数（高位在前）
             return (registers[0] << 16) | registers[1];
         }
@@ -897,7 +900,7 @@ namespace WindowsFormsApp6
             for (int i = 0; i < currentSampleCount; i++)
             {
                 var value = initialRow[$"试样{i + 1}"];
-                if (value == null || value == DBNull.Value || 
+                if (value == null || value == DBNull.Value ||
                     (value is double d && d == 0.0))
                 {
                     return i;
@@ -995,7 +998,7 @@ namespace WindowsFormsApp6
                 if (initialWeights[i] > 0)
                 {
                     absorptions[i] = ((afterWeights[i] - initialWeights[i]) / initialWeights[i]) * 100;
-                    
+
                     // 检查NaN
                     if (double.IsNaN(absorptions[i]) || double.IsInfinity(absorptions[i]))
                     {
@@ -1047,13 +1050,13 @@ namespace WindowsFormsApp6
             DataRow avgRow = dataTable.NewRow();
             avgRow["序号"] = "液体吸收量平均值(%)";
             double avgAbsorption = validCount > 0 ? validAbsorptions.Average() : 0;
-            
+
             // 检查NaN
             if (double.IsNaN(avgAbsorption) || double.IsInfinity(avgAbsorption))
             {
                 avgAbsorption = 0;
             }
-            
+
             avgRow["试样1"] = avgAbsorption;
             for (int i = 2; i <= count; i++)
             {
@@ -1065,13 +1068,13 @@ namespace WindowsFormsApp6
             DataRow maxRow = dataTable.NewRow();
             maxRow["序号"] = "液体吸收量最大值(%)";
             double maxAbsorption = validCount > 0 ? validAbsorptions.Max() : 0;
-            
+
             // 检查NaN
             if (double.IsNaN(maxAbsorption) || double.IsInfinity(maxAbsorption))
             {
                 maxAbsorption = 0;
             }
-            
+
             maxRow["试样1"] = maxAbsorption;
             for (int i = 2; i <= count; i++)
             {
@@ -1111,21 +1114,21 @@ namespace WindowsFormsApp6
             try
             {
                 // 读取吸水时间（D200，1个寄存器，整数，单位：秒）
-                ushort[] timeRegisters = _modbusMaster.ReadHoldingRegisters(slaveId, 200, 1);
-                
+                ushort[] timeRegisters = _modbusMaster.ReadHoldingRegisters(slaveId, 212, 2);
+
                 // 读取吸芯高度（D454，2个寄存器，浮点数，单位：mm，精度0.01mm）
                 ushort[] heightRegisters = _modbusMaster.ReadHoldingRegisters(slaveId, 454, 2);
 
                 // 使用反射获取Form3的私有字段
                 var sampleDataTableField = form3Instance.GetType()
                     .GetField("sampleDataTable", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
-                
+
                 var currentSampleCountField = form3Instance.GetType()
                     .GetField("currentSampleCount", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
-                
+
                 var isVerticalLayoutField = form3Instance.GetType()
                     .GetField("isVerticalLayout", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
-                
+
                 if (sampleDataTableField == null || currentSampleCountField == null || isVerticalLayoutField == null)
                 {
                     System.Diagnostics.Debug.WriteLine("无法获取Form3的私有字段");
@@ -1135,7 +1138,7 @@ namespace WindowsFormsApp6
                 DataTable dataTable = sampleDataTableField.GetValue(form3Instance) as DataTable;
                 int currentSampleCount = (int)currentSampleCountField.GetValue(form3Instance);
                 bool isVerticalLayout = (bool)isVerticalLayoutField.GetValue(form3Instance);
-                
+
                 if (dataTable == null || dataTable.Rows.Count == 0)
                 {
                     System.Diagnostics.Debug.WriteLine("DataTable为空或没有行");
@@ -1144,11 +1147,11 @@ namespace WindowsFormsApp6
 
                 // 将寄存器值转换为实际数据
                 // 吸水时间：单个寄存器，整数，单位：秒
-                int wickingTime = ConvertSingleRegisterToInt(timeRegisters[0]);
-                
+                int wickingTime = timeRegisters[0];
+                //wickingTime = ModbusUshortToInt(timeRegisters[1], timeRegisters[0]);
                 // 吸芯高度：2个寄存器，浮点数，单位：mm，精度0.01mm
                 double wickingHeight = ConvertRegistersToDouble(heightRegisters);
-
+                wickingHeight = ModbusUshortToFloat(heightRegisters[1], heightRegisters[0]);
                 // 检查数据有效性
                 if (wickingTime <= 0 || double.IsNaN(wickingHeight) || double.IsInfinity(wickingHeight))
                 {
@@ -1163,14 +1166,14 @@ namespace WindowsFormsApp6
 
                 // Form3限制：最多5组试样（15次测试）
                 const int MAX_FORM3_SAMPLES = 5;
-                
+
                 // 如果超过最大试样数量，显示警告并停止
                 if (sampleIndex > MAX_FORM3_SAMPLES)
                 {
                     this.Invoke(new Action(() =>
                     {
                         MessageBox.Show($"Form3已达到最大试样数量限制（{MAX_FORM3_SAMPLES}组，共{MAX_FORM3_SAMPLES * 3}次测试）\n" +
-                                      "无法继续添加数据。", 
+                                      "无法继续添加数据。",
                                       "数据已满", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                     }));
                     return;
@@ -1181,7 +1184,7 @@ namespace WindowsFormsApp6
                 {
                     currentSampleCount = sampleIndex;
                     currentSampleCountField.SetValue(form3Instance, currentSampleCount);
-                    
+
                     // 重新初始化DataTable和DataGridView
                     this.Invoke(new Action(() =>
                     {
@@ -1189,7 +1192,7 @@ namespace WindowsFormsApp6
                             .GetMethod("SetSampleCount", System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance);
                         setSampleCountMethod?.Invoke(form3Instance, new object[] { currentSampleCount });
                     }));
-                    
+
                     // 重新获取更新后的DataTable
                     dataTable = sampleDataTableField.GetValue(form3Instance) as DataTable;
                 }
@@ -1203,13 +1206,13 @@ namespace WindowsFormsApp6
                         DataRow timeRow = dataTable.Rows[0];
                         DataRow heightRow = dataTable.Rows[1];
                         string columnName = $"试样{sampleIndex}_{testIndex}";
-                        
+
                         // 填充吸水时间
                         if (timeRow.Table.Columns.Contains(columnName))
                         {
                             timeRow[columnName] = wickingTime;
                         }
-                        
+
                         // 填充吸芯高度
                         if (heightRow.Table.Columns.Contains(columnName))
                         {
@@ -1222,21 +1225,21 @@ namespace WindowsFormsApp6
                     // 横向布局：每行是一个试样的一次测试
                     // 计算行索引：(sampleIndex-1) * 3 + (testIndex-1)
                     int rowIndex = (sampleIndex - 1) * 3 + (testIndex - 1);
-                    
+
                     if (rowIndex < dataTable.Rows.Count)
                     {
                         DataRow row = dataTable.Rows[rowIndex];
                         string rowName = $"试样{sampleIndex}_{testIndex}";
-                        
+
                         // 确保序号正确
                         row["序号"] = rowName;
-                        
+
                         // 填充吸水时间列
                         if (row.Table.Columns.Contains("吸水时间(s)"))
                         {
                             row["吸水时间(s)"] = wickingTime;
                         }
-                        
+
                         // 填充吸芯高度列
                         if (row.Table.Columns.Contains("吸芯高度(mm)"))
                         {
@@ -1265,6 +1268,39 @@ namespace WindowsFormsApp6
             }
         }
 
+        private float ModbusUshortToFloat(ushort highReg, ushort lowReg)
+        {
+            byte[] floatBytes = new byte[4];
+            // 高寄存器→高2字节，低寄存器→低2字节（与读取时的顺序一致）
+            floatBytes[0] = (byte)(highReg >> 8);
+            floatBytes[1] = (byte)highReg;
+            floatBytes[2] = (byte)(lowReg >> 8);
+            floatBytes[3] = (byte)lowReg;
+
+            if (BitConverter.IsLittleEndian)
+            {
+                Array.Reverse(floatBytes);
+            }
+
+            return BitConverter.ToSingle(floatBytes, 0);
+        }
+
+        private int ModbusUshortToInt(ushort highReg, ushort lowReg)
+        {
+            byte[] floatBytes = new byte[4];
+            // 高寄存器→高2字节，低寄存器→低2字节（与读取时的顺序一致）
+            floatBytes[0] = (byte)(highReg >> 8);
+            floatBytes[1] = (byte)highReg;
+            floatBytes[2] = (byte)(lowReg >> 8);
+            floatBytes[3] = (byte)lowReg;
+
+            if (BitConverter.IsLittleEndian)
+            {
+                Array.Reverse(floatBytes);
+            }
+
+            return BitConverter.ToInt32(floatBytes, 0);
+        }
         /// <summary>
         /// 获取Form3下一个要填充的位置（试样索引和测试次数）
         /// 返回：(试样索引, 测试次数) - 都是1-based
@@ -1277,7 +1313,7 @@ namespace WindowsFormsApp6
                 if (dataTable.Rows.Count > 0)
                 {
                     DataRow timeRow = dataTable.Rows[0];
-                    
+
                     // 遍历所有试样的所有测试次数，找到第一个空位
                     for (int i = 1; i <= currentSampleCount; i++)
                     {
@@ -1287,7 +1323,7 @@ namespace WindowsFormsApp6
                             if (timeRow.Table.Columns.Contains(columnName))
                             {
                                 var value = timeRow[columnName];
-                                if (value == null || value == DBNull.Value || 
+                                if (value == null || value == DBNull.Value ||
                                     (value is double d && Math.Abs(d) < 0.001))
                                 {
                                     return Tuple.Create(i, j);
@@ -1295,7 +1331,7 @@ namespace WindowsFormsApp6
                             }
                         }
                     }
-                    
+
                     // 所有位置都已填充，返回下一个试样的第1次测试
                     return Tuple.Create(currentSampleCount + 1, 1);
                 }
@@ -1308,15 +1344,15 @@ namespace WindowsFormsApp6
                     for (int j = 1; j <= 3; j++)
                     {
                         int rowIndex = (i - 1) * 3 + (j - 1);
-                        
+
                         if (rowIndex < dataTable.Rows.Count)
                         {
                             DataRow row = dataTable.Rows[rowIndex];
-                            
+
                             if (row.Table.Columns.Contains("吸水时间(s)"))
                             {
                                 var value = row["吸水时间(s)"];
-                                if (value == null || value == DBNull.Value || 
+                                if (value == null || value == DBNull.Value ||
                                     (value is double d && Math.Abs(d) < 0.001))
                                 {
                                     return Tuple.Create(i, j);
@@ -1325,11 +1361,11 @@ namespace WindowsFormsApp6
                         }
                     }
                 }
-                
+
                 // 所有位置都已填充，返回下一个试样的第1次测试
                 return Tuple.Create(currentSampleCount + 1, 1);
             }
-            
+
             // 默认返回第1个试样的第1次测试
             return Tuple.Create(1, 1);
         }
@@ -1340,22 +1376,22 @@ namespace WindowsFormsApp6
         private double CalculateStandardDeviation(double[] values)
         {
             if (values == null || values.Length <= 1) return 0;
-            
+
             // 过滤掉NaN和Infinity值
             var validValues = values.Where(v => !double.IsNaN(v) && !double.IsInfinity(v)).ToArray();
-            
+
             if (validValues.Length <= 1) return 0;
-            
+
             double avg = validValues.Average();
             double sumOfSquares = validValues.Sum(val => Math.Pow(val - avg, 2));
             double result = Math.Sqrt(sumOfSquares / (validValues.Length - 1));
-            
+
             // 检查结果是否为NaN
             if (double.IsNaN(result) || double.IsInfinity(result))
             {
                 return 0;
             }
-            
+
             return result;
         }
 
@@ -1383,11 +1419,11 @@ namespace WindowsFormsApp6
         private void TabControl1_SelectedIndexChanged(object sender, EventArgs e)
         {
             UpdateTitleForCurrentTab();
-            
+
             // 根据选中的 Tab 显示/隐藏切换布局按钮
             // 只有在 Form3 (Tab 2, index=2) 时显示切换按钮
             buttonToggleLayout.Visible = (tabControl1.SelectedIndex == 2);
-            
+
             // 更新切换按钮的文本
             if (tabControl1.SelectedIndex == 2 && form3Instance != null)
             {
@@ -1417,7 +1453,7 @@ namespace WindowsFormsApp6
             form1Instance.TopLevel = false;
             form1Instance.FormBorderStyle = FormBorderStyle.None;
             form1Instance.Dock = DockStyle.Fill;
-            
+
             Panel panel1 = new Panel();
             panel1.Dock = DockStyle.Fill;
             panel1.Controls.Add(form1Instance.Controls["tableLayoutPanel1"].Controls["panel3"]);
@@ -1428,7 +1464,7 @@ namespace WindowsFormsApp6
             form2Instance.TopLevel = false;
             form2Instance.FormBorderStyle = FormBorderStyle.None;
             form2Instance.Dock = DockStyle.Fill;
-            
+
             Panel panel2 = new Panel();
             panel2.Dock = DockStyle.Fill;
             panel2.Controls.Add(form2Instance.Controls["tableLayoutPanel1"].Controls["panel3"]);
@@ -1439,7 +1475,7 @@ namespace WindowsFormsApp6
             form3Instance.TopLevel = false;
             form3Instance.FormBorderStyle = FormBorderStyle.None;
             form3Instance.Dock = DockStyle.Fill;
-            
+
             Panel panel3 = new Panel();
             panel3.Dock = DockStyle.Fill;
             panel3.Controls.Add(form3Instance.Controls["tableLayoutPanel1"].Controls["panel3"]);
@@ -1463,56 +1499,56 @@ namespace WindowsFormsApp6
             int col3InputWidth = 140;
             int col4LabelWidth = 75;  // 测试时间/数据文件
             int col4InputWidth = 140;
-            
+
             int gap = 15; // 列之间的间距
-            
+
             // 计算总宽度
             int totalWidth = col1LabelWidth + col1InputWidth + gap +
                            col2LabelWidth + col2InputWidth + gap +
                            col3LabelWidth + col3InputWidth + gap +
                            col4LabelWidth + col4InputWidth;
-            
+
             int startX = (panelInfo.Width - totalWidth) / 2;
-            
+
             // 第一行 Y 坐标
             int y1 = 10;
             int labelOffsetY = 3; // 标签相对输入框的垂直偏移
-            
+
             // 第一列：样品名称
             int col1X = startX;
             label3.Location = new Point(col1X, y1 + labelOffsetY);
             textBox1.Location = new Point(col1X + col1LabelWidth, y1);
-            
+
             // 第二列：物料编码
             int col2X = col1X + col1LabelWidth + col1InputWidth + gap;
             label4.Location = new Point(col2X, y1 + labelOffsetY);
             textBox2.Location = new Point(col2X + col2LabelWidth, y1);
-            
+
             // 第三列：批号
             int col3X = col2X + col2LabelWidth + col2InputWidth + gap;
             label5.Location = new Point(col3X, y1 + labelOffsetY);
             textBox3.Location = new Point(col3X + col3LabelWidth, y1);
-            
+
             // 第四列：测试时间
             int col4X = col3X + col3LabelWidth + col3InputWidth + gap;
             label9.Location = new Point(col4X, y1 + labelOffsetY);
             textBox7.Location = new Point(col4X + col4LabelWidth, y1);
-            
+
             // 第二行 Y 坐标
             int y2 = 43;
-            
+
             // 第一列：仪器
             label6.Location = new Point(col1X, y2 + labelOffsetY);
             textBox4.Location = new Point(col1X + col1LabelWidth, y2);
-            
+
             // 第二列：设备编号
             label7.Location = new Point(col2X, y2 + labelOffsetY);
             textBox5.Location = new Point(col2X + col2LabelWidth, y2);
-            
+
             // 第三列：操作人员
             label8.Location = new Point(col3X, y2 + labelOffsetY);
             textBox6.Location = new Point(col3X + col3LabelWidth, y2);
-            
+
             // 第四列：数据文件
             label10.Location = new Point(col4X, y2 + labelOffsetY);
             textBox8.Location = new Point(col4X + col4LabelWidth, y2);
@@ -1525,25 +1561,25 @@ namespace WindowsFormsApp6
         {
             // 收集所有可见的按钮
             List<Button> visibleButtons = new List<Button>();
-            
+
             if (buttonToggleLayout.Visible) visibleButtons.Add(buttonToggleLayout);
             if (button5.Visible) visibleButtons.Add(button5);
             if (buttonPrint.Visible) visibleButtons.Add(buttonPrint);
             if (buttonExport.Visible) visibleButtons.Add(buttonExport);
-            
+
             if (visibleButtons.Count == 0) return;
-            
+
             // 按钮参数
             int buttonWidth = 140;
             int buttonGap = 20; // 按钮之间的间距
             int buttonY = 17;
-            
+
             // 计算总宽度
             int totalWidth = visibleButtons.Count * buttonWidth + (visibleButtons.Count - 1) * buttonGap;
-            
+
             // 计算起始X坐标（居中）
             int startX = (panelBottom.Width - totalWidth) / 2;
-            
+
             // 依次设置每个按钮的位置
             for (int i = 0; i < visibleButtons.Count; i++)
             {
@@ -1650,13 +1686,13 @@ namespace WindowsFormsApp6
                 Height = 30
             };
 
-            optionsDialog.Controls.AddRange(new Control[] { 
-                label, 
-                chkAbsorptionTime, 
-                chkAbsorptionAmount, 
-                chkWickingRate, 
-                btnOK, 
-                btnCancel 
+            optionsDialog.Controls.AddRange(new Control[] {
+                label,
+                chkAbsorptionTime,
+                chkAbsorptionAmount,
+                chkWickingRate,
+                btnOK,
+                btnCancel
             });
             optionsDialog.AcceptButton = btnOK;
             optionsDialog.CancelButton = btnCancel;
@@ -1714,7 +1750,7 @@ namespace WindowsFormsApp6
             {
                 // 调用 Form3 的公共切换方法
                 form3Instance.ToggleTableLayout();
-                
+
                 // 更新按钮文本
                 UpdateToggleButtonText();
             }
@@ -1738,7 +1774,7 @@ namespace WindowsFormsApp6
             try
             {
                 IWorkbook workbook = new XSSFWorkbook();
-                
+
                 // 创建单个整合的工作表
                 CreateIntegratedSheet(workbook, options);
 
@@ -1827,7 +1863,7 @@ namespace WindowsFormsApp6
             }
         }
 
-        private void CreateInfoSection(ISheet sheet, ref int currentRow, int sampleCount, 
+        private void CreateInfoSection(ISheet sheet, ref int currentRow, int sampleCount,
             (ICellStyle titleStyle, ICellStyle headerStyle, ICellStyle dataStyle, ICellStyle yellowStyle) styles)
         {
             // 从界面获取实际数据
@@ -1838,7 +1874,7 @@ namespace WindowsFormsApp6
             string instrument = textBox5.Text.Trim();
             string deviceNumber = textBox6.Text.Trim();
             string testTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
-            
+
             // 第一行信息
             IRow infoRow1 = sheet.CreateRow(currentRow++);
             infoRow1.Height = 400;
@@ -1847,7 +1883,7 @@ namespace WindowsFormsApp6
             ICell cell1 = infoRow1.CreateCell(0);
             cell1.SetCellValue("样品名称:");
             cell1.CellStyle = styles.dataStyle;
-            
+
             ICell cell2 = infoRow1.CreateCell(1);
             cell2.SetCellValue(string.IsNullOrEmpty(sampleName) ? "" : sampleName);
             cell2.CellStyle = styles.yellowStyle;
@@ -1859,7 +1895,7 @@ namespace WindowsFormsApp6
             ICell cell3 = infoRow1.CreateCell(3);
             cell3.SetCellValue("物料编码:");
             cell3.CellStyle = styles.dataStyle;
-            
+
             ICell cell4 = infoRow1.CreateCell(4);
             cell4.SetCellValue(string.IsNullOrEmpty(materialCode) ? "" : materialCode);
             cell4.CellStyle = styles.yellowStyle;
@@ -1871,7 +1907,7 @@ namespace WindowsFormsApp6
             ICell cell5 = infoRow1.CreateCell(6);
             cell5.SetCellValue("批号:");
             cell5.CellStyle = styles.dataStyle;
-            
+
             ICell cell6 = infoRow1.CreateCell(7);
             cell6.SetCellValue(string.IsNullOrEmpty(batchNumber) ? "" : batchNumber);
             cell6.CellStyle = styles.yellowStyle;
@@ -1880,7 +1916,7 @@ namespace WindowsFormsApp6
             ICell cell7 = infoRow1.CreateCell(8);
             cell7.SetCellValue("操作人员:");
             cell7.CellStyle = styles.dataStyle;
-            
+
             ICell cell8 = infoRow1.CreateCell(9);
             cell8.SetCellValue(string.IsNullOrEmpty(operatorName) ? "" : operatorName);
             cell8.CellStyle = styles.yellowStyle;
@@ -1893,7 +1929,7 @@ namespace WindowsFormsApp6
             ICell cell21 = infoRow2.CreateCell(0);
             cell21.SetCellValue("测试时间:");
             cell21.CellStyle = styles.dataStyle;
-            
+
             ICell cell22 = infoRow2.CreateCell(1);
             cell22.SetCellValue(testTime);
             cell22.CellStyle = styles.yellowStyle;
@@ -1905,7 +1941,7 @@ namespace WindowsFormsApp6
             ICell cell23 = infoRow2.CreateCell(3);
             cell23.SetCellValue("仪器:");
             cell23.CellStyle = styles.dataStyle;
-            
+
             ICell cell24 = infoRow2.CreateCell(4);
             cell24.SetCellValue(string.IsNullOrEmpty(instrument) ? "" : instrument);
             cell24.CellStyle = styles.yellowStyle;
@@ -1917,7 +1953,7 @@ namespace WindowsFormsApp6
             ICell cell25 = infoRow2.CreateCell(6);
             cell25.SetCellValue("设备编号:");
             cell25.CellStyle = styles.dataStyle;
-            
+
             ICell cell26 = infoRow2.CreateCell(7);
             cell26.SetCellValue(string.IsNullOrEmpty(deviceNumber) ? "" : deviceNumber);
             cell26.CellStyle = styles.yellowStyle;
@@ -1926,7 +1962,7 @@ namespace WindowsFormsApp6
             ICell cell27 = infoRow2.CreateCell(8);
             cell27.SetCellValue("数据文件:");
             cell27.CellStyle = styles.dataStyle;
-            
+
             ICell cell28 = infoRow2.CreateCell(9);
             cell28.SetCellValue("");
             cell28.CellStyle = styles.yellowStyle;
@@ -1982,12 +2018,12 @@ namespace WindowsFormsApp6
                     {
                         // 计算有多少组（每5个试样一组）
                         int groupCount = (int)Math.Ceiling((double)sampleCount / 5.0);
-                        
+
                         for (int groupIndex = 0; groupIndex < groupCount; groupIndex++)
                         {
                             int startSample = groupIndex * 5 + 1;
                             int endSample = Math.Min(startSample + 4, sampleCount);
-                            
+
                             // 查找该组的平均值（存储在该组第一个试样的列中）
                             ICell avgCell = row.CreateCell(startSample);
                             if (dataTable.Columns.Contains($"试样{startSample}") && dataRow[$"试样{startSample}"] != DBNull.Value)
@@ -2006,13 +2042,13 @@ namespace WindowsFormsApp6
                                 avgCell.SetCellValue("");
                             }
                             avgCell.CellStyle = styles.yellowStyle;
-                            
+
                             // 为该组的其他单元格设置样式
                             for (int i = startSample + 1; i <= endSample; i++)
                             {
                                 row.CreateCell(i).CellStyle = styles.yellowStyle;
                             }
-                            
+
                             // 合并该组的单元格
                             if (endSample > startSample)
                             {
@@ -2100,12 +2136,12 @@ namespace WindowsFormsApp6
                     {
                         // 按每5个试样一组显示
                         int groupCount = (int)Math.Ceiling((double)sampleCount / 5.0);
-                        
+
                         for (int groupIndex = 0; groupIndex < groupCount; groupIndex++)
                         {
                             int startSample = groupIndex * 5 + 1;
                             int endSample = Math.Min(startSample + 4, sampleCount);
-                            
+
                             // 查找该组的统计值（存储在该组第一个试样的列中）
                             ICell valueCell = row.CreateCell(startSample);
                             if (dataTable.Columns.Contains($"试样{startSample}") && dataRow[$"试样{startSample}"] != DBNull.Value)
@@ -2125,13 +2161,13 @@ namespace WindowsFormsApp6
                                 valueCell.SetCellValue("");
                             }
                             valueCell.CellStyle = styles.yellowStyle;
-                            
+
                             // 为该组的其他单元格设置样式
                             for (int i = startSample + 1; i <= endSample; i++)
                             {
                                 row.CreateCell(i).CellStyle = styles.yellowStyle;
                             }
-                            
+
                             // 合并该组的单元格
                             if (endSample > startSample)
                             {
@@ -2215,7 +2251,7 @@ namespace WindowsFormsApp6
             // 第二行表头（试样1-N，每个3列）
             IRow headerRow2 = sheet.CreateRow(currentRow);
             headerRow2.Height = 400;
-            
+
             // 序号列在第二行也需要创建并设置样式（用于合并）
             headerRow2.CreateCell(0).CellStyle = styles.headerStyle;
 
@@ -2231,7 +2267,7 @@ namespace WindowsFormsApp6
                 sheet.AddMergedRegion(new CellRangeAddress(currentRow, currentRow, colIndex, colIndex + 2));
                 colIndex += 3;
             }
-            
+
             // 合并序号列（跨两行）
             sheet.AddMergedRegion(new CellRangeAddress(currentRow - 1, currentRow, 0, 0));
 
@@ -2298,7 +2334,7 @@ namespace WindowsFormsApp6
                             valueCell.SetCellValue("");
                         }
                         valueCell.CellStyle = styles.yellowStyle;
-                        
+
                         // 为合并区域的其他单元格设置样式
                         for (int i = 2; i <= sampleCount * 3; i++)
                         {
@@ -2317,7 +2353,7 @@ namespace WindowsFormsApp6
                             {
                                 ICell cell = row.CreateCell(colIndex++);
                                 string columnName = $"试样{i}_{j}";
-                                
+
                                 if (dataTable.Columns.Contains(columnName) && dataRow[columnName] != DBNull.Value)
                                 {
                                     if (double.TryParse(dataRow[columnName].ToString(), out double value))
@@ -2356,15 +2392,15 @@ namespace WindowsFormsApp6
             // 停止并释放定时器
             timeUpdateTimer?.Stop();
             timeUpdateTimer?.Dispose();
-            
+
             _readTimer?.Stop();
             _readTimer?.Dispose();
-            
+
             // 关闭Modbus和串口
             try
             {
                 _modbusMaster?.Dispose();
-                
+
                 if (_serialPort != null && _serialPort.IsOpen)
                 {
                     _serialPort.Close();
@@ -2375,7 +2411,7 @@ namespace WindowsFormsApp6
             {
                 System.Diagnostics.Debug.WriteLine($"关闭串口失败：{ex.Message}");
             }
-            
+
             Application.Exit();
         }