QModbus TCP模式综合操作(二).rar

#include "mainwindow.h" #include "ui_mainwindow.h" #include <QMessageBox> #include "settingdialog.h" #include <QModbusRtuSerialMaster> #include <QModbusReply> #include <QStandardItemModel> #include <QModbusDataUnit> #include <QModbusTcpClient> //连接类型枚举变量 enum ModbusConnection { Serial, Tcp }; MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) , ui(new Ui::MainWindow) { ui->setupUi(this); //创建对象 m_settingDialog = new SettingDialog(this); //初始化信号与槽 initActions(); //创建写模型 writeModel = new WriteRegisterModel(this); writeModel->setStartAddress(ui->sbWriteStartAddr->value()); writeModel->setNumberOfValues(ui->cbWriteCount->currentText()); //MVC ui->treeViewWrite->setModel(writeModel); //隐藏第二列 ui->treeViewWrite->hideColumn(2); connect(writeModel, &WriteRegisterModel::updateViewport, ui->treeViewWrite->viewport(), QOverload<>::of(&QWidget::update)); //默认为串口连接方式 ui->cbConnType->setCurrentIndex(0); onConnectTypeChanged(0); auto model = new QStandardItemModel(10, 1, this); for (int i = 0; i < 10; i++) { model->setItem(i, new QStandardItem(QStringLiteral("%1").arg(i + 1))); } ui->cbWriteCount->setModel(model); ui->cbWriteCount->setCurrentText("10"); connect(ui->cbWriteCount, &QComboBox::currentTextChanged, writeModel, &WriteRegisterModel::setNumberOfValues); auto valueChanged = QOverload<int>::of(&QSpinBox::valueChanged); connect(ui->sbWriteStartAddr, valueChanged, writeModel, &WriteRegisterModel::setStartAddress); connect(ui->sbWriteStartAddr, valueChanged, this, [this, model](int i){ int lastIndex = 0; const int curIndex = ui->cbWriteCount->currentIndex(); for (int j = 0; j < 10; j++) { //设置使能 if (j < (10 - i)) { lastIndex = j; model->item(j)->setEnabled(true); } else { //设置禁用 model->item(j)->setEnabled(false); } } if (curIndex > lastIndex) { ui->cbWriteCount->setCurrentIndex(lastIndex); } }); } //析构函数 MainWindow::~MainWindow() { if (modbusDevice) { modbusDevice->disconnectDevice(); delete modbusDevice; } delete ui; } //信号与槽进行关联s void MainWindow::initActions() { //使能部分功能 ui->actionConnect->setEnabled(true); ui->actionDisconnect->setEnabled(false); ui->actionQuit->setEnabled(true); ui->actionOption->setEnabled(true); //禁用读写操作 ui->btnRead->setEnabled(false); ui->btnWrite->setEnabled(false); ui->btnReadWrite->setEnabled(false); //信号与槽关联 connect(ui->btnConnect, &QPushButton::clicked, this, &MainWindow::onConnectButtonClicked); connect(ui->actionConnect, &QAction::triggered, this, &MainWindow::onConnectButtonClicked); connect(ui->actionDisconnect, &QAction::triggered, this, &MainWindow::onConnectButtonClicked); //读操作按钮槽函数关联 connect(ui->btnRead, &QPushButton::clicked, this, &MainWindow::onReadButtonClicked); connect(ui->btnWrite, &QPushButton::clicked, this, &MainWindow::onWriteButtonClicked); connect(ui->btnReadWrite, &QPushButton::clicked, this, &MainWindow::onReadWriteButtonClicked); connect(ui->cbRegisterType, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &MainWindow::onWriteTableChanged); connect(ui->cbConnType, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &MainWindow::onConnectTypeChanged); //退出菜单 connect(ui->actionQuit, &QAction::triggered, this, &MainWindow::close); //显示参数设置对话框 connect(ui->actionOption, &QAction::triggered, m_settingDialog, &QDialog::show); connect(ui->actionAbout, &QAction::triggered, [=]() { QMessageBox::aboutQt(this, "About Qt"); }); } //构建请求报文 QModbusDataUnit MainWindow::readRequest() const { //const auto type = static_cast<QModbusDataUnit::RegisterType>(ui->cbRegisterType->currentData().toInt()); QModbusDataUnit::RegisterType type = QModbusDataUnit::Invalid; qDebug() << ui->cbRegisterType->currentText(); if (ui->cbRegisterType->currentText() == QString("线圈")) { type = QModbusDataUnit::Coils; } else if (ui->cbRegisterType->currentText() == QString("离散输入")) { type = QModbusDataUnit::DiscreteInputs; } else if (ui->cbRegisterType->currentText() == QString("输入寄存器")) { type = QModbusDataUnit::InputRegisters; } else if (ui->cbRegisterType->currentText() == QString("保持寄存器")) { type = QModbusDataUnit::HoldingRegisters; } qDebug() << "请求报文类型: " << type; //获取 int startAddress = ui->spReadStartAddr->value(); Q_ASSERT(startAddress >= 0 && startAddress < 10); quint16 numberOfEntries = ui->cbReadCount->currentText().toUShort(); return QModbusDataUnit(type, startAddress, numberOfEntries); } //写请求数据包封装 QModbusDataUnit MainWindow::writeRequest() const { QModbusDataUnit::RegisterType type = QModbusDataUnit::Invalid; qDebug() << ui->cbRegisterType->currentText(); if (ui->cbRegisterType->currentText() == QString("线圈")) { type = QModbusDataUnit::Coils; } else if (ui->cbRegisterType->currentText() == QString("离散输入")) { type = QModbusDataUnit::DiscreteInputs; } else if (ui->cbRegisterType->currentText() == QString("输入寄存器")) { type = QModbusDataUnit::InputRegisters; } else if (ui->cbRegisterType->currentText() == QString("保持寄存器")) { type = QModbusDataUnit::HoldingRegisters; } qDebug() << "请求报文类型: " << type; //获取 int startAddress = ui->sbWriteStartAddr->value(); Q_ASSERT(startAddress >= 0 && startAddress < 10); quint16 numberOfEntries = ui->cbWriteCount->currentText().toUShort(); //qDebug() << "Test: " << startAddress << " " << numberOfEntries; return QModbusDataUnit(type, startAddress, numberOfEntries); } //连接和断开连接的槽函数 void MainWindow::onConnectButtonClicked() { if (!modbusDevice) { return; } //清空状态栏消息 statusBar()->clearMessage(); if (modbusDevice->state() != QModbusDevice::ConnectedState) { auto type = static_cast<ModbusConnection>(ui->cbConnType->currentIndex()); if (type == Serial) { //设置串口连接信息 modbusDevice->setConnectionParameter(QModbusDevice::SerialPortNameParameter, m_settingDialog->settings().serialName); modbusDevice->setConnectionParameter(QModbusDevice::SerialParityParameter, m_settingDialog->settings().parity); modbusDevice->setConnectionParameter(QModbusDevice::SerialBaudRateParameter, m_settingDialog->settings().baud); modbusDevice->setConnectionParameter(QModbusDevice::SerialDataBitsParameter, m_settingDialog->settings().dataBits); modbusDevice->setConnectionParameter(QModbusDevice::SerialStopBitsParameter, m_settingDialog->settings().stopBits);