串口错误时显示串口错误信息

modbus.pro.user

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 4.0.3, 2025-07-28T19:27:23. -->
+<!-- Written by QtCreator 4.0.3, 2025-07-29T09:40:16. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>

serialcommunicator.cpp

@@ -22,22 +22,24 @@
  *          4. 连接信号槽
  */
 SerialCommunicator::SerialCommunicator(QObject *parent) : QObject(parent)
-    , serialPort(new QSerialPort(this))
-    , recvTimer(new QTimer(this))
-    , resendTimer(new QTimer(this))
-    , comCount(0)
-    , maxRetry(3)
-    , recvTimeout(50)
-    , resendTimeout(1000)
+    , serialPort_(new QSerialPort(this))
+    , recvTimer_(new QTimer(this))
+    , resendTimer_(new QTimer(this))
+    , comCount_(0)
+    , maxRetry_(3)
+    , recvTimeout_(50)
+    , resendTimeout_(1000)
 {
     // 配置定时器（单次触发）
-    recvTimer->setSingleShot(true);
-    resendTimer->setSingleShot(true);
+    recvTimer_->setSingleShot(true);
+    resendTimer_->setSingleShot(true);
 
     // 连接信号槽
-    connect(serialPort, &QSerialPort::readyRead, this, &SerialCommunicator::onReadyRead);
-    connect(recvTimer, &QTimer::timeout, this, &SerialCommunicator::onRecvTimeout);
-    connect(resendTimer, &QTimer::timeout, this, &SerialCommunicator::onResendTimeout);
+    connect(serialPort_, &QSerialPort::readyRead, this, &SerialCommunicator::onReadyRead);
+    connect(recvTimer_, &QTimer::timeout, this, &SerialCommunicator::onRecvTimeout);
+    connect(resendTimer_, &QTimer::timeout, this, &SerialCommunicator::onResendTimeout);
+    connect(serialPort_, SIGNAL(error(QSerialPort::SerialPortError)),
+            this, SLOT(handleSerialError(QSerialPort::SerialPortError)));
 }
 
 /**
@@ -64,11 +66,11 @@ void SerialCommunicator::setPortParams(const QString &portName, qint32 baudRate,
                                      QSerialPort::Parity parity,
                                      QSerialPort::StopBits stopBits)
 {
-    this->portName = portName;
-    this->baudRate = baudRate;
-    this->dataBits = dataBits;
-    this->parity = parity;
-    this->stopBits = stopBits;
+    this->portName_ = portName;
+    this->baudRate_ = baudRate;
+    this->dataBits_ = dataBits;
+    this->parity_ = parity;
+    this->stopBits_ = stopBits;
 }
 
 /**
@@ -84,37 +86,37 @@ void SerialCommunicator::setPortParams(const QString &portName, qint32 baudRate,
 bool SerialCommunicator::open()
 {
     // 关闭已打开的串口（如果存在）
-    if (serialPort->isOpen())
+    if (serialPort_->isOpen())
     {
-        serialPort->close();
+        serialPort_->close();
     }
 
     // 配置串口参数
-    serialPort->setPortName(portName);
-    if (!serialPort->setBaudRate(baudRate))
+    serialPort_->setPortName(portName_);
+    if (!serialPort_->setBaudRate(baudRate_))
     {
         emit statusChanged("波特率设置失败");
         return false;
     }
-    if (!serialPort->setDataBits(dataBits))
+    if (!serialPort_->setDataBits(dataBits_))
     {
         emit statusChanged("数据位设置失败");
         return false;
     }
-    if (!serialPort->setParity(parity))
+    if (!serialPort_->setParity(parity_))
     {
         emit statusChanged("校验位设置失败");
         return false;
     }
-    if (!serialPort->setStopBits(stopBits))
+    if (!serialPort_->setStopBits(stopBits_))
     {
         emit statusChanged("停止位设置失败");
         return false;
     }
-    serialPort->setFlowControl(QSerialPort::NoFlowControl);  // 无流控制
+    serialPort_->setFlowControl(QSerialPort::NoFlowControl);  // 无流控制
 
     // 打开串口
-    if (serialPort->open(QIODevice::ReadWrite))
+    if (serialPort_->open(QIODevice::ReadWrite))
     {
         emit statusChanged("串口连接成功");
         return true;
@@ -136,9 +138,9 @@ bool SerialCommunicator::open()
  */
 void SerialCommunicator::close()
 {
-    if (serialPort->isOpen())
+    if (serialPort_->isOpen())
     {
-        serialPort->close();
+        serialPort_->close();
         emit statusChanged("串口断开");
     }
 }
@@ -156,17 +158,17 @@ void SerialCommunicator::close()
  */
 void SerialCommunicator::sendData(const QByteArray &data)
 {
-    if (!serialPort->isOpen())
+    if (!serialPort_->isOpen())
     {
         emit statusChanged("串口未打开，无法发送数据");
         return;
     }
     // 保存待重发数据，初始化计数器，启动重发定时器
-    currentData = data;
-    comCount = 0;
-    serialPort->write(data);  // 发送数据
+    currentData_ = data;
+    comCount_ = 0;
+    serialPort_->write(data);  // 发送数据
     emit statusChanged("发送报文：" + data.toHex().toUpper());
-    resendTimer->start(resendTimeout);  // 启动超时计时
+    resendTimer_->start(resendTimeout_);  // 启动超时计时
 }
 
 /**
@@ -175,7 +177,7 @@ void SerialCommunicator::sendData(const QByteArray &data)
  */
 void SerialCommunicator::setMaxRetry(int count)
 {
-    maxRetry = count;
+    maxRetry_ = count;
 }
 
 /**
@@ -186,7 +188,7 @@ void SerialCommunicator::setMaxRetry(int count)
  */
 void SerialCommunicator::setRecvTimeout(int ms)
 {
-    recvTimeout = ms;
+    recvTimeout_ = ms;
 }
 
 /**
@@ -195,7 +197,7 @@ void SerialCommunicator::setRecvTimeout(int ms)
  */
 void SerialCommunicator::setResendTimeout(int ms)
 {
-    resendTimeout = ms;
+    resendTimeout_ = ms;
 }
 
 /**
@@ -204,7 +206,7 @@ void SerialCommunicator::setResendTimeout(int ms)
  */
 bool SerialCommunicator::isOpen() const
 {
-    return serialPort->isOpen();
+    return serialPort_->isOpen();
 }
 
 // ====================== 私有槽函数 ====================== //
@@ -220,9 +222,9 @@ bool SerialCommunicator::isOpen() const
 void SerialCommunicator::onReadyRead()
 {
     // 读取数据到缓冲区
-    recvBuffer.append(serialPort->readAll());
+    recvBuffer_.append(serialPort_->readAll());
     //重置接收超时定时器
-    recvTimer->start(recvTimeout);
+    recvTimer_->start(recvTimeout_);
 }
 
 /**
@@ -236,9 +238,9 @@ void SerialCommunicator::onReadyRead()
 void SerialCommunicator::onRecvTimeout()
 {
     // 接收完成，发送完整数据信号，停止重发定时器
-    emit dataReceived(recvBuffer);
-    recvBuffer.clear();
-    resendTimer->stop();
+    emit dataReceived(recvBuffer_);
+    recvBuffer_.clear();
+    resendTimer_->stop();
 }
 
 /**
@@ -251,18 +253,108 @@ void SerialCommunicator::onRecvTimeout()
  */
 void SerialCommunicator::onResendTimeout()
 {
-    if (comCount < maxRetry)
+    if (comCount_ < maxRetry_)
     {
         // 重发数据，更新计数器
-        serialPort->write(currentData);
-        comCount++;
-        emit statusChanged(QString("通信超时，重新发送中（%1/%2）").arg(comCount).arg(maxRetry));
-        resendTimer->start(resendTimeout);  // 继续计时
+        serialPort_->write(currentData_);
+        comCount_++;
+        emit statusChanged(QString("通信超时，重新发送中（%1/%2）").arg(comCount_).arg(maxRetry_));
+        resendTimer_->start(resendTimeout_);  // 继续计时
     }
     else
     {
         // 达到最大重发次数，触发超时信号
-        resendTimer->stop();
+        resendTimer_->stop();
         emit timeoutOccurred();
     }
 }
+
+/**
+ * @brief 处理串口错误
+ * @param error 串口错误代码
+ *
+ * @details 执行流程：
+ *          1. 忽略无错误和超时错误（超时由其他机制处理）
+ *          2. 根据错误代码生成错误描述
+ *          3. 对于物理断开错误（ResourceError）：
+ *              - 自动关闭串口
+ *              - 停止所有定时器
+ *              - 清空接收缓冲区
+ *              - 发送物理断开信号
+ *          4. 其他错误只发送状态通知
+ */
+void SerialCommunicator::handleSerialError(QSerialPort::SerialPortError error)
+{
+    // 忽略无错误和超时错误（超时由其他机制处理）
+    if (error == QSerialPort::NoError || error == QSerialPort::TimeoutError)
+    {
+        return;
+    }
+
+    QString errorMsg;
+    switch (error)
+    {
+    case QSerialPort::DeviceNotFoundError:
+        errorMsg = "设备未找到";
+        break;
+    case QSerialPort::PermissionError:
+        errorMsg = "没有权限访问设备";
+        break;
+    case QSerialPort::OpenError:
+        errorMsg = "设备已打开";
+        break;
+    case QSerialPort::ParityError:
+        errorMsg = "奇偶校验错误";
+        break;
+    case QSerialPort::FramingError:
+        errorMsg = "帧错误";
+        break;
+    case QSerialPort::BreakConditionError:
+        errorMsg = "Break条件错误";
+        break;
+    case QSerialPort::WriteError:
+        errorMsg = "写入错误";
+        break;
+    case QSerialPort::ReadError:
+        errorMsg = "读取错误";
+        break;
+    case QSerialPort::ResourceError:
+        errorMsg = "资源错误（设备已断开）";
+        break;
+    case QSerialPort::UnsupportedOperationError:
+        errorMsg = "不支持的操作";
+        break;
+    case QSerialPort::UnknownError:
+        errorMsg = "未知错误";
+        break;
+    case QSerialPort::NotOpenError:
+        errorMsg = "设备未打开";
+        break;
+    default:
+        errorMsg = "未定义错误";
+    }
+
+    // 物理断开处理（资源错误）
+    if (error == QSerialPort::ResourceError)
+    {
+        // 自动关闭串口
+        close();
+
+        // 停止所有定时器
+        recvTimer_->stop();
+        resendTimer_->stop();
+
+        // 清空缓冲区
+        recvBuffer_.clear();
+
+        // 通知上层
+        emit statusChanged("物理连接断开: " + errorMsg);
+        emit physicalDisconnected();
+    }
+    else
+    {
+        // 其他错误只通知不自动断开
+        emit statusChanged("串口错误: " + errorMsg);
+    }
+
+}

serialcommunicator.h

@@ -60,10 +60,10 @@ public:
      * @param stopBits 停止位(通常为QSerialPort::OneStop)
      * @note 此方法应在打开串口前调用
      */
-    void setPortParams(const QString &portName, qint32 baudRate,
-                      QSerialPort::DataBits dataBits,
-                      QSerialPort::Parity parity,
-                      QSerialPort::StopBits stopBits);
+    void setPortParams(const QString &portName_, qint32 baudRate_,
+                      QSerialPort::DataBits dataBits_,
+                      QSerialPort::Parity parity_,
+                      QSerialPort::StopBits stopBits_);
 
     /**
      * @brief 打开串口
@@ -137,6 +137,12 @@ signals:
      */
     void timeoutOccurred();
 
+    /**
+     * @brief 串口错误信号
+     * @note 当串口发生异常错误时触发
+     */
+    void physicalDisconnected();
+
 private slots:
     /**
      * @brief 串口数据到达处理
@@ -156,23 +162,29 @@ private slots:
      */
     void onResendTimeout();
 
+    /**
+     * @brief 处理串口错误
+     * @param error 串口错误代码
+     */
+    void handleSerialError(QSerialPort::SerialPortError error);
+
 private:
-    QSerialPort *serialPort;       // 串口对象
-    QTimer *recvTimer;             // 接收完成判断定时器
-    QTimer *resendTimer;           // 超时重发定时器
-    QByteArray recvBuffer;         // 接收缓冲区
-    QByteArray currentData;        // 当前待重发数据
-    int comCount;                  // 重发计数器
-    int maxRetry;                  // 最大重发次数
-    int recvTimeout;               // 接收超时时间（ms）
-    int resendTimeout;             // 重发间隔（ms）
+    QSerialPort *serialPort_;       // 串口对象
+    QTimer *recvTimer_;             // 接收完成判断定时器
+    QTimer *resendTimer_;           // 超时重发定时器
+    QByteArray recvBuffer_;         // 接收缓冲区
+    QByteArray currentData_;        // 当前待重发数据
+    int comCount_;                  // 重发计数器
+    int maxRetry_;                  // 最大重发次数
+    int recvTimeout_;               // 接收超时时间（ms）
+    int resendTimeout_;             // 重发间隔（ms）
 
     // 串口参数
-    QString portName;
-    qint32 baudRate;
-    QSerialPort::DataBits dataBits;
-    QSerialPort::Parity parity;
-    QSerialPort::StopBits stopBits;
+    QString portName_;
+    qint32 baudRate_;
+    QSerialPort::DataBits dataBits_;
+    QSerialPort::Parity parity_;
+    QSerialPort::StopBits stopBits_;
 };
 
 #endif // SERIALCOMMUNICATOR_H

widget.cpp

@@ -15,6 +15,7 @@ Widget::Widget(QWidget *parent) :
 {
     modbus = new MyModbus();
     ui->setupUi(this);
+    setFixedSize(700,500);
     serialComm = new SerialCommunicator(this);  // 初始化串口通信类
 
     // 配置串口参数
@@ -26,6 +27,12 @@ Widget::Widget(QWidget *parent) :
     connect(serialComm, &SerialCommunicator::dataReceived, this, &Widget::onSerialDataReceived);
     connect(serialComm, &SerialCommunicator::statusChanged, this, &Widget::onSerialStatusChanged);
     connect(serialComm, &SerialCommunicator::timeoutOccurred, this, &Widget::onSerialTimeout);
+    connect(serialComm, &SerialCommunicator::physicalDisconnected, this, [=](){
+        ui->btnConnect->setText("连接");
+        ui->btn_read->setEnabled(false);
+        ui->pushWrite->setEnabled(false);
+        QMessageBox::warning(this, "警告", "物理连接已断开");
+    });
 
     ui->comboBox_baudRate->setCurrentIndex(3);
     ui->comboBox_dataBit->setCurrentIndex(3);
@@ -97,7 +104,6 @@ void Widget::on_pushWrite_clicked()
     switch (ui->comboBox_gongnengma->currentIndex())
     {
     case 2:   //写多个线圈
-
     {
         QString sendData = ui->lineEdit->text().trimmed();
         if (sendData.isEmpty())
@@ -118,7 +124,7 @@ void Widget::on_pushWrite_clicked()
             coils.append(ch == '1');
         }
 
-        quint16 stationAddress = ui->comboBox_stationAddress->currentText().toInt();
+        quint16 stationAddress = ui->lineEdit_stationAddress->text().toInt();
         quint16 functionCode = 0x0f;
         quint16 stratAddress = ui->lineEdit_stratAddress->text().toInt();
         quint16 length = ui->lineEdit_length->text().toInt();
@@ -138,7 +144,7 @@ void Widget::on_pushWrite_clicked()
         break;
     }
 
-    case 3:
+    case 3:    //写多个寄存器
     {
         QString sendData = ui->lineEdit->text().trimmed();
         if (sendData.isEmpty())
@@ -150,18 +156,46 @@ void Widget::on_pushWrite_clicked()
         QStringList sl = sendData.split(',');
         QVector<quint16> values;
         bool ok;
+
+        // 检查输入是否是十进制
+        bool isDecimal = true;
         for (const QString &s : sl)
         {
-            quint16 v = s.toUShort(&ok, 16);
+            s.toInt(&ok);
             if (!ok)
             {
-                QMessageBox::warning(this, "提示", "请输入正确的十六进制值,或检查逗号是否是英文格式！");
-                return;
+                isDecimal = false;
+                break;
+            }
+        }
+
+        for (const QString &s : sl)
+        {
+            quint16 v;
+            if (isDecimal)
+            {
+                // 如果是十进制输入
+                v = s.toUShort(&ok, 10);
+                if (!ok)
+                {
+                    QMessageBox::warning(this, "提示", "请输入正确的十进制值（0-65535）");
+                    return;
+                }
+            }
+            else
+            {
+                // 默认按十六进制处理
+                v = s.toUShort(&ok, 16);
+                if (!ok)
+                {
+                    QMessageBox::warning(this, "提示", "请输入正确的十六进制值（0-FFFF），或检查逗号格式");
+                    return;
+                }
             }
             values.append(v);
         }
 
-        quint16 stationAddress = ui->comboBox_stationAddress->currentText().toInt();
+        quint16 stationAddress = ui->lineEdit_stationAddress->text().toInt();
         quint16 functionCode = 0x10;
         quint16 stratAddress = ui->lineEdit_stratAddress->text().toInt();
         quint16 length = ui->lineEdit_length->text().toInt();
@@ -198,7 +232,7 @@ void Widget::on_btn_read_clicked()
         QMessageBox::warning(this, "提示", "请将“操作”切换为读线圈或读寄存器");
         return;
     }
-    quint16 stationAddress = ui->comboBox_stationAddress->currentText().toInt();
+    quint16 stationAddress = ui->lineEdit_stationAddress->text().toInt();
     quint16 functionCode;
     quint16 stratAddress = ui->lineEdit_stratAddress->text().toInt();
     quint16 length = ui->lineEdit_length->text().toInt();

widget.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>700</width>
-    <height>486</height>
+    <height>500</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -17,7 +17,7 @@
    <property name="geometry">
     <rect>
      <x>30</x>
-     <y>240</y>
+     <y>260</y>
      <width>181</width>
      <height>231</height>
     </rect>
@@ -25,13 +25,13 @@
    <property name="title">
     <string>从站配置</string>
    </property>
-   <widget class="QWidget" name="">
+   <widget class="QWidget" name="layoutWidget">
     <property name="geometry">
      <rect>
       <x>10</x>
       <y>30</y>
       <width>159</width>
-      <height>131</height>
+      <height>141</height>
      </rect>
     </property>
     <layout class="QGridLayout" name="gridLayout_2">
@@ -42,55 +42,6 @@
        </property>
       </widget>
      </item>
-     <item row="0" column="1">
-      <widget class="QComboBox" name="comboBox_stationAddress">
-       <item>
-        <property name="text">
-         <string>1</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>2</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>3</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>4</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>5</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>6</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>7</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>8</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>9</string>
-        </property>
-       </item>
-      </widget>
-     </item>
      <item row="1" column="0">
       <widget class="QLabel" name="label_10">
        <property name="text">
@@ -150,13 +101,20 @@
        </property>
       </widget>
      </item>
+     <item row="0" column="1">
+      <widget class="QLineEdit" name="lineEdit_stationAddress">
+       <property name="text">
+        <string>1</string>
+       </property>
+      </widget>
+     </item>
     </layout>
    </widget>
    <widget class="QPushButton" name="btn_read">
     <property name="geometry">
      <rect>
       <x>10</x>
-      <y>160</y>
+      <y>170</y>
       <width>71</width>
       <height>51</height>
      </rect>
@@ -169,7 +127,7 @@
     <property name="geometry">
      <rect>
       <x>90</x>
-      <y>160</y>
+      <y>170</y>
       <width>71</width>
       <height>51</height>
      </rect>
@@ -185,165 +143,159 @@
      <x>30</x>
      <y>19</y>
      <width>181</width>
-     <height>211</height>
+     <height>221</height>
     </rect>
    </property>
    <property name="title">
     <string>串口配置</string>
    </property>
-   <widget class="QWidget" name="">
-    <property name="geometry">
-     <rect>
-      <x>10</x>
-      <y>20</y>
-      <width>161</width>
-      <height>181</height>
-     </rect>
-    </property>
-    <layout class="QGridLayout" name="gridLayout">
-     <item row="0" column="0">
-      <widget class="QLabel" name="label">
-       <property name="text">
-        <string>串口</string>
-       </property>
-      </widget>
-     </item>
-     <item row="0" column="1">
-      <widget class="QComboBox" name="comboBox_serialNum"/>
-     </item>
-     <item row="1" column="0">
-      <widget class="QLabel" name="label_2">
-       <property name="text">
-        <string>波特率</string>
-       </property>
-      </widget>
-     </item>
-     <item row="1" column="1">
-      <widget class="QComboBox" name="comboBox_baudRate">
-       <item>
+   <layout class="QFormLayout" name="formLayout">
+    <item row="0" column="0">
+     <layout class="QGridLayout" name="gridLayout">
+      <item row="0" column="0">
+       <widget class="QLabel" name="label">
         <property name="text">
-         <string>1200</string>
+         <string>串口</string>
         </property>
-       </item>
-       <item>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QComboBox" name="comboBox_serialNum"/>
+      </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="label_2">
         <property name="text">
-         <string>2400</string>
+         <string>波特率</string>
         </property>
-       </item>
-       <item>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QComboBox" name="comboBox_baudRate">
+        <item>
+         <property name="text">
+          <string>1200</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>2400</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>4800</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>9600</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>19200</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>38400</string>
+         </property>
+        </item>
+       </widget>
+      </item>
+      <item row="2" column="0">
+       <widget class="QLabel" name="label_3">
         <property name="text">
-         <string>4800</string>
+         <string>数据位</string>
         </property>
-       </item>
-       <item>
+       </widget>
+      </item>
+      <item row="2" column="1">
+       <widget class="QComboBox" name="comboBox_dataBit">
+        <item>
+         <property name="text">
+          <string>5</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>6</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>7</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>8</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>NONE</string>
+         </property>
+        </item>
+       </widget>
+      </item>
+      <item row="3" column="0">
+       <widget class="QLabel" name="label_7">
         <property name="text">
-         <string>9600</string>
+         <string>校验位</string>
         </property>
-       </item>
-       <item>
+       </widget>
+      </item>
+      <item row="3" column="1">
+       <widget class="QComboBox" name="comboBox_xiaoyan">
+        <item>
+         <property name="text">
+          <string>无校验(N)</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>奇校验(O)</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>偶校验(E)</string>
+         </property>
+        </item>
+       </widget>
+      </item>
+      <item row="4" column="0">
+       <widget class="QLabel" name="label_8">
         <property name="text">
-         <string>19200</string>
+         <string>停止位</string>
         </property>
-       </item>
-       <item>
+       </widget>
+      </item>
+      <item row="4" column="1">
+       <widget class="QComboBox" name="comboBox_stopBit">
+        <item>
+         <property name="text">
+          <string>1</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>2</string>
+         </property>
+        </item>
+       </widget>
+      </item>
+      <item row="5" column="0" colspan="2">
+       <widget class="QPushButton" name="btnConnect">
         <property name="text">
-         <string>38400</string>
+         <string>连接</string>
         </property>
-       </item>
-      </widget>
-     </item>
-     <item row="2" column="0">
-      <widget class="QLabel" name="label_3">
-       <property name="text">
-        <string>数据位</string>
-       </property>
-      </widget>
-     </item>
-     <item row="2" column="1">
-      <widget class="QComboBox" name="comboBox_dataBit">
-       <item>
-        <property name="text">
-         <string>5</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>6</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>7</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>8</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>NONE</string>
-        </property>
-       </item>
-      </widget>
-     </item>
-     <item row="3" column="0">
-      <widget class="QLabel" name="label_7">
-       <property name="text">
-        <string>校验位</string>
-       </property>
-      </widget>
-     </item>
-     <item row="3" column="1">
-      <widget class="QComboBox" name="comboBox_xiaoyan">
-       <item>
-        <property name="text">
-         <string>无校验(N)</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>奇校验(O)</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>偶校验(E)</string>
-        </property>
-       </item>
-      </widget>
-     </item>
-     <item row="4" column="0">
-      <widget class="QLabel" name="label_8">
-       <property name="text">
-        <string>停止位</string>
-       </property>
-      </widget>
-     </item>
-     <item row="4" column="1">
-      <widget class="QComboBox" name="comboBox_stopBit">
-       <item>
-        <property name="text">
-         <string>1</string>
-        </property>
-       </item>
-       <item>
-        <property name="text">
-         <string>2</string>
-        </property>
-       </item>
-      </widget>
-     </item>
-     <item row="5" column="0" colspan="2">
-      <widget class="QPushButton" name="btnConnect">
-       <property name="text">
-        <string>连接</string>
-       </property>
-      </widget>
-     </item>
-    </layout>
-   </widget>
+       </widget>
+      </item>
+     </layout>
+    </item>
+   </layout>
   </widget>
   <widget class="QGroupBox" name="groupBox_3">
    <property name="geometry">
@@ -403,7 +355,7 @@
      <x>240</x>
      <y>340</y>
      <width>341</width>
-     <height>131</height>
+     <height>151</height>
     </rect>
    </property>
    <property name="title">
@@ -413,15 +365,15 @@
     <property name="geometry">
      <rect>
       <x>10</x>
-      <y>0</y>
+      <y>20</y>
       <width>311</width>
-      <height>101</height>
+      <height>91</height>
      </rect>
     </property>
     <property name="text">
      <string>写线圈时，使用1、0代表线圈的开关状态，
 从左到右依次输入每个线圈的开关；
-写寄存器时要写入所有寄存器的16进制数值，
+写寄存器时要同时写入所有寄存器的数值，
 相邻寄存器的值之间用英文&quot;,&quot;分离。</string>
     </property>
    </widget>
@@ -429,14 +381,14 @@
     <property name="geometry">
      <rect>
       <x>10</x>
-      <y>90</y>
+      <y>110</y>
       <width>301</width>
       <height>31</height>
      </rect>
     </property>
    </widget>
   </widget>
-  <widget class="QWidget" name="">
+  <widget class="QWidget" name="layoutWidget">
    <property name="geometry">
     <rect>
      <x>240</x>