From bf15605454640e3915fb78a89aea5c1ee8a842d0 Mon Sep 17 00:00:00 2001
From: zhangyongpan <zhangyongpan@xinje.cc>
Date: Sun, 27 Jul 2025 13:38:44 +0800
Subject: [PATCH] =?UTF-8?q?=E5=86=99=E5=A4=9A=E4=B8=AA=E5=AF=84=E5=AD=98?=
 =?UTF-8?q?=E5=99=A8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ModbusDemo/Device/IModbusRTU.cs             |  3 +
 ModbusDemo/Device/ModbusRTU.cs              | 61 ++++++++++++++++++++-
 ModbusDemo/VIew/CoilUC.xaml                 | 18 ++++--
 ModbusDemo/VIewModel/RegisterUCViewModel.cs | 24 ++++++--
 4 files changed, 92 insertions(+), 14 deletions(-)

diff --git a/ModbusDemo/Device/IModbusRTU.cs b/ModbusDemo/Device/IModbusRTU.cs
index 250c8d5..0a0a0bf 100644
--- a/ModbusDemo/Device/IModbusRTU.cs
+++ b/ModbusDemo/Device/IModbusRTU.cs
@@ -15,5 +15,8 @@ namespace ModbusDemo.Device
 
         public ushort[] ReadRegisters(byte slaveAddress, ushort startAddress, ushort numberOfPoints);
 
+
+        public void WriteRegisters(byte slaveAddress, ushort startAddress, ushort[] data);
+
     }
 }
diff --git a/ModbusDemo/Device/ModbusRTU.cs b/ModbusDemo/Device/ModbusRTU.cs
index aee8904..4eaacfc 100644
--- a/ModbusDemo/Device/ModbusRTU.cs
+++ b/ModbusDemo/Device/ModbusRTU.cs
@@ -58,7 +58,7 @@ namespace ModbusDemo.Device
                 Thread.Sleep(300);
                 byte[] response = new byte[_serialPort.BytesToRead];
                 _serialPort.Read(response, 0, _serialPort.BytesToRead);
-                return ParseCoilresponse(response,numberOfPoints);
+                return ParseCoilresponse(response, numberOfPoints);
             }
 
 
@@ -170,12 +170,12 @@ namespace ModbusDemo.Device
                 if (!CRCUitl.ValidateCRC(response))
                 {
                     MessageBox.Show("0x14:CRC校验错误");
-                     
+
                 }
             }
 
 
-            
+
         }
 
         public ushort[] ReadRegisters(byte slaveAddress, ushort startAddress, ushort numberOfPoints)
@@ -238,5 +238,60 @@ namespace ModbusDemo.Device
 
             return registers;
         }
+
+        public void WriteRegisters(byte slaveAddress, ushort startAddress, ushort[] data)
+        {
+            List<byte> sendByteList = new List<byte>();
+            //设置从站地址
+            sendByteList.Add(slaveAddress);
+            //设置功能码
+            sendByteList.Add(0x10);
+            //设置起始地址的高位和低位
+            sendByteList.Add(BitConverter.GetBytes(startAddress)[1]);
+            sendByteList.Add(BitConverter.GetBytes(startAddress)[0]);
+            //设置写入几个线圈
+            sendByteList.Add(BitConverter.GetBytes(data.Length)[1]);
+            sendByteList.Add(BitConverter.GetBytes(data.Length)[0]);
+
+            // 计算字节数
+            int byteCount = (data.Length + 7) / 8;
+            sendByteList.Add((byte)byteCount);
+
+            foreach (ushort value in data)
+            {
+                byte[] valueBytes = BitConverter.GetBytes(value);
+                // 大端序：高字节在前，低字节在后
+                sendByteList.Add(valueBytes[1]);
+                sendByteList.Add(valueBytes[0]);
+            }
+
+            //获取CRC校验码
+            byte[] getCRC = sendByteList.ToArray();
+            byte[] resultCRC = CRCUitl.CalculateCRC(getCRC, getCRC.Length);
+            sendByteList.Add(resultCRC[0]);
+            sendByteList.Add(resultCRC[1]);
+
+
+            byte[] sendByte = sendByteList.ToArray();
+            if (_serialPort.IsOpen)
+            {
+                // 清空接收缓冲区（避免残留数据干扰）
+                _serialPort.DiscardInBuffer();
+
+                _serialPort.Write(sendByte, 0, sendByte.Length);
+                Thread.Sleep(300);
+                byte[] response = new byte[_serialPort.BytesToRead];
+                _serialPort.Read(response, 0, _serialPort.BytesToRead);
+
+                //判断发送回来的数据是否正确
+                CheckData.CheckResponse(response);
+
+                if (!CRCUitl.ValidateCRC(response))
+                {
+                    MessageBox.Show("0x14:CRC校验错误");
+
+                }
+            }
+        }
     }
 }
diff --git a/ModbusDemo/VIew/CoilUC.xaml b/ModbusDemo/VIew/CoilUC.xaml
index db83084..10f4142 100644
--- a/ModbusDemo/VIew/CoilUC.xaml
+++ b/ModbusDemo/VIew/CoilUC.xaml
@@ -15,8 +15,8 @@
     mc:Ignorable="d">
     <UserControl.Resources>
         <Style TargetType="TextBox">
-            <Setter Property="Margin" Value="0,5"/>
-            <Setter Property="FontSize" Value="14"/>
+            <Setter Property="Margin" Value="0,5" />
+            <Setter Property="FontSize" Value="14" />
         </Style>
     </UserControl.Resources>
     <Grid>
@@ -52,8 +52,10 @@
                 </ColumnDefinition>
             </Grid.ColumnDefinitions>
             <Grid.RowDefinitions>
-                <RowDefinition></RowDefinition>
-                <RowDefinition Height="60"></RowDefinition>
+                <RowDefinition>
+                </RowDefinition>
+                <RowDefinition Height="60">
+                </RowDefinition>
             </Grid.RowDefinitions>
             <StackPanel HorizontalAlignment="Center" Orientation="Vertical">
                 <TextBlock Margin="20" Text="从站地址">
@@ -78,9 +80,9 @@
 
             <StackPanel Grid.Row="2" Grid.ColumnSpan="4" HorizontalAlignment="Center" Orientation="Horizontal">
 
-                <TextBlock  Text="读取结果:" Margin="0,20,0,0" FontWeight="Black"/>
+                <TextBlock Margin="0,20,0,0" Text="读取结果:" FontWeight="Black" />
 
-                <TextBox Margin="20,0,0,0" MinWidth="120"  Text="{Binding ReadResult}" Style="{StaticResource MaterialDesignOutlinedTextBox}"/>
+                <TextBox MinWidth="120" Margin="20,0,0,0" Text="{Binding ReadResult}" Style="{StaticResource MaterialDesignOutlinedTextBox}" />
             </StackPanel>
             <Button
                 Grid.Column="4"
@@ -145,5 +147,9 @@
                 Style="{StaticResource MaterialDesignRaisedDarkButton}">
             </Button>
         </Grid>
+
+        <Grid Grid.Row="3">
+
+        </Grid>
     </Grid>
 </UserControl>
diff --git a/ModbusDemo/VIewModel/RegisterUCViewModel.cs b/ModbusDemo/VIewModel/RegisterUCViewModel.cs
index dbf94e9..a267095 100644
--- a/ModbusDemo/VIewModel/RegisterUCViewModel.cs
+++ b/ModbusDemo/VIewModel/RegisterUCViewModel.cs
@@ -176,14 +176,28 @@ namespace ModbusDemo.VIewModel
         }
         private void WriteRegister()
         {
-            //去除字符串中的空格
-            WriteData = WriteData.Replace(" ", "");
-            //转换为布尔数组
-            bool[] data = WriteData.Select(m => m == '1').ToArray();
+            string[] parts = WriteData.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
+            // 3. 创建结果数组
+            ushort[] data = new ushort[parts.Length];
+
+            // 4. 遍历并转换每个部分
+            for (int i = 0; i < parts.Length; i++)
+            {
+                // 尝试解析为ushort
+                if (ushort.TryParse(parts[i], out ushort value))
+                {
+                    data[i] = value;
+                }
+                else
+                {
+                    // 处理解析失败的情况
+                    throw new FormatException($"无法将 '{parts[i]}' 转换为 ushort 类型");
+                }
+            }
 
             try
             {
-                _modbusRTU.WriteCoil(byte.Parse(WriteSlaveAddress),
+                _modbusRTU.WriteRegisters(byte.Parse(WriteSlaveAddress),
                                      ushort.Parse(WriteStartAddress),
                                      data);
             }