├── ModbusTcpClient
    ├── ModbusTcpClient.cpp
    ├── ModbusTcpClient.h
    ├── ModbusTcpClient.pro
    ├── ModbusTcpClient.pro.user
    ├── ModbusTcpClient.ui
    └── main.cpp
├── ModbusTcpServer
    ├── ModbusTcpServer.cpp
    ├── ModbusTcpServer.h
    ├── ModbusTcpServer.pro
    ├── ModbusTcpServer.pro.user
    ├── ModbusTcpServer.ui
    └── main.cpp
└── README.md


/ModbusTcpClient/ModbusTcpClient.cpp:
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  1 | #include "ModbusTcpClient.h"
  2 | #include "ui_ModbusTcpClient.h"
  3 | #include <QModbusRtuSerialMaster>
  4 | #include <QSerialPort>
  5 | #include <QModbusDataUnit>
  6 | #include <QDebug>
  7 | #include <QUrl>
  8 | #include <QModbusTcpClient>
  9 | ModbusTcpClient::ModbusTcpClient(QWidget *parent) :
 10 |     QMainWindow(parent),
 11 |     ui(new Ui::ModbusTcpClient),m_holdingRegisters(20)
 12 | {
 13 |     ui->setupUi(this);
 14 | 
 15 | 
 16 |     if (modbusDevice) {
 17 |         modbusDevice->disconnectDevice();
 18 |         delete modbusDevice;
 19 |         modbusDevice = nullptr;
 20 |     }
 21 |     modbusDevice = new QModbusTcpClient(this);//QModbusTcpClient用于TCP通信中的client
 22 |     if (ui->lineEdit->text().isEmpty())
 23 |         ui->lineEdit->setText(QLatin1Literal("127.0.0.1:502"));
 24 |     connect(modbusDevice, &QModbusClient::errorOccurred, [this](QModbusDevice::Error) {
 25 |         statusBar()->showMessage(modbusDevice->errorString(), 5000);
 26 |     });
 27 |     connect(modbusDevice, &QModbusClient::stateChanged,
 28 |             this, &ModbusTcpClient::onStateChanged);//连接状态发生改变时改变connect按钮上的显示文字（connect or discennect）
 29 | 
 30 | 
 31 | //    QByteArray text = QByteArray::fromHex("517420697320677265617421");
 32 | //    text.data();            // returns "Qt is great!"
 33 | //    qDebug()<<text.data();
 34 | 
 35 | }
 36 | 
 37 | ModbusTcpClient::~ModbusTcpClient()
 38 | {
 39 |     if (modbusDevice)
 40 |         modbusDevice->disconnectDevice();
 41 |     delete modbusDevice;
 42 |     delete ui; 
 43 | }
 44 | 
 45 | void ModbusTcpClient::on_sendButton_clicked()
 46 | {
 47 |     if (!modbusDevice)//如果设备没有被创建就返回
 48 |         return;
 49 | 
 50 |     QString strDis;
 51 |     QString str1 = ui->textEdit->toPlainText();
 52 |     qDebug()<<str1;
 53 |     QByteArray str2 = QByteArray::fromHex (str1.toLatin1().data());//按十六进制编码接入文本
 54 |     //qDebug()<<str2;
 55 |     QString str3 = str2.toHex().data();//以十六进制显示
 56 | 
 57 |     statusBar()->clearMessage();//清除状态栏显示的信息
 58 |     QModbusDataUnit writeUnit(QModbusDataUnit::HoldingRegisters,0,10);//发送的数据信息（数据类型 ，起始地址，个数）
 59 | //    QModbusDataUnit::RegisterType table = writeUnit.registerType();//得到寄存器类型传给table
 60 |     for (uint i = 0; i < writeUnit.valueCount(); i++) {
 61 |         int j = 2*i;
 62 |         QString st = str3.mid (j,2);
 63 |         bool ok;
 64 |         int hex =st.toInt(&ok,16);
 65 |         qDebug()<<hex;
 66 |         writeUnit.setValue(i,hex);//设置发送数据为123456789
 67 |     }
 68 |  //   auto *reply = modbusDevice->sendWriteRequest(writeUnit, 1);//发送数据 1是server address
 69 |     if (auto *reply = modbusDevice->sendWriteRequest(writeUnit, 1)) {
 70 |         if (!reply->isFinished()) {   //reply Returns true when the reply has finished or was aborted.
 71 |             connect(reply, &QModbusReply::finished, this, [this, reply]() {
 72 |                 if (reply->error() == QModbusDevice::ProtocolError) {
 73 |                     statusBar()->showMessage(tr("Write response error: %1 (Mobus exception: 0x%2)")
 74 |                         .arg(reply->errorString()).arg(reply->rawResult().exceptionCode(), -1, 16),
 75 |                         5000);
 76 |                 } else if (reply->error() != QModbusDevice::NoError) {
 77 |                     statusBar()->showMessage(tr("Write response error: %1 (code: 0x%2)").
 78 |                         arg(reply->errorString()).arg(reply->error(), -1, 16), 5000);
 79 |                 }
 80 |                 reply->deleteLater();
 81 |             });
 82 |         } else {
 83 |             // broadcast replies return immediately
 84 |             reply->deleteLater();
 85 |         }
 86 |     } else {
 87 |         statusBar()->showMessage(tr("Write error: ") + modbusDevice->errorString(), 5000);
 88 |     }
 89 | }
 90 | 
 91 | void ModbusTcpClient::on_connectButton_clicked()
 92 | {
 93 |     if (!modbusDevice)
 94 |         return;
 95 |     statusBar()->clearMessage();
 96 | 
 97 |     if (modbusDevice->state() != QModbusDevice::ConnectedState) {//如果处在非连接状态，进行连接
 98 |         const QUrl url = QUrl::fromUserInput(ui->lineEdit->text());//获取IP和端口号
 99 |         modbusDevice->setConnectionParameter(QModbusDevice::NetworkPortParameter, url.port());
100 |         modbusDevice->setConnectionParameter(QModbusDevice::NetworkAddressParameter, url.host());
101 | 
102 |         modbusDevice->setTimeout(1000);//连接超时1S
103 |         modbusDevice->setNumberOfRetries(3);//连接失败重试三次连接
104 |         if (!modbusDevice->connectDevice()) {
105 |             statusBar()->showMessage(tr("Connect failed: ") + modbusDevice->errorString(), 5000);
106 |         }
107 |     }else{//处在连接状态进行断开连接的操作
108 |         modbusDevice->disconnectDevice();
109 |     }
110 | }
111 | 
112 | void ModbusTcpClient::onStateChanged(int state)//更新connect按钮的显示状态
113 | {
114 | 
115 |     if (state == QModbusDevice::UnconnectedState)
116 |         ui->connectButton->setText(tr("Connect"));
117 |     else if (state == QModbusDevice::ConnectedState)
118 |         ui->connectButton->setText(tr("Disconnect"));
119 | }
120 | 
121 | void ModbusTcpClient::on_readButton_clicked()
122 | {
123 |     if (!modbusDevice)
124 |         return;
125 |     statusBar()->clearMessage();
126 |     QModbusDataUnit readUnit(QModbusDataUnit::HoldingRegisters,0,10);
127 |     if (auto *reply = modbusDevice->sendReadRequest(readUnit, 1)) {
128 |         if (!reply->isFinished())
129 |             connect(reply, &QModbusReply::finished, this, &ModbusTcpClient::readReady);
130 |         else
131 |             delete reply; // broadcast replies return immediately
132 |     } else {
133 |         statusBar()->showMessage(tr("Read error: ") + modbusDevice->errorString(), 5000);
134 |     }
135 | }
136 | 
137 | void ModbusTcpClient::readReady()//在这里读的数据
138 | {
139 |     auto reply = qobject_cast<QModbusReply *>(sender());//QModbusReply这个类存储了来自client的数据,sender()返回发送信号的对象的指针
140 |     if (!reply)
141 |         return;
142 | //数据从QModbusReply这个类的resuil方法中获取,也就是本程序中的reply->result()
143 |     if (reply->error() == QModbusDevice::NoError) {
144 |         const QModbusDataUnit unit = reply->result();
145 |         for (uint i = 0; i < unit.valueCount(); i++) {
146 |             const QString entry = tr("Address: %1, Value: %2").arg(unit.startAddress())
147 |                                      .arg(QString::number(unit.value(i),
148 |                                           unit.registerType() <= QModbusDataUnit::Coils ? 10 : 16));
149 | //            ui->readValue->addItem(entry);//把数据放在QListWidget中
150 |             ui->textEdit_2->append(entry);
151 |         }
152 |     } else if (reply->error() == QModbusDevice::ProtocolError) {
153 |         statusBar()->showMessage(tr("Read response error: %1 (Mobus exception: 0x%2)").
154 |                                     arg(reply->errorString()).
155 |                                     arg(reply->rawResult().exceptionCode(), -1, 16), 5000);
156 |     } else {
157 |         statusBar()->showMessage(tr("Read response error: %1 (code: 0x%2)").
158 |                                     arg(reply->errorString()).
159 |                                     arg(reply->error(), -1, 16), 5000);
160 |     }
161 | 
162 |     reply->deleteLater();
163 | }
164 | 


--------------------------------------------------------------------------------
/ModbusTcpClient/ModbusTcpClient.h:
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 1 | #ifndef ModbusTcpClient_H
 2 | #define ModbusTcpClient_H
 3 | 
 4 | #include <QMainWindow>
 5 | #include <QModbusDataUnit>
 6 | #include <QModbusClient>
 7 | 
 8 | namespace Ui {
 9 | class ModbusTcpClient;
10 | }
11 | 
12 | class ModbusTcpClient : public QMainWindow
13 | {
14 |     Q_OBJECT
15 | 
16 | public:
17 |     explicit ModbusTcpClient(QWidget *parent = 0);
18 | //    QStringList list;
19 |     ~ModbusTcpClient();
20 | 
21 | private slots:
22 |     void on_sendButton_clicked();
23 | 
24 |     void on_connectButton_clicked();
25 |     void onStateChanged(int state);
26 | 
27 |     void on_readButton_clicked();
28 |     void readReady();
29 | private:
30 |     Ui::ModbusTcpClient *ui;
31 |     QModbusClient *modbusDevice;//QModbusClient被QModbusRtuSerialMaster和QModbusTcpClient继成
32 |     QVector<quint16> m_holdingRegisters;
33 | 
34 | };
35 | 
36 | #endif // ModbusTcpClient_H
37 | 


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/ModbusTcpClient/ModbusTcpClient.pro:
--------------------------------------------------------------------------------
 1 | #-------------------------------------------------
 2 | #
 3 | # Project created by QtCreator 2016-08-03T11:38:23
 4 | #
 5 | #-------------------------------------------------
 6 | 
 7 | QT       += core gui serialbus serialport
 8 | 
 9 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
10 | 
11 | TARGET = modbusMaster
12 | TEMPLATE = app
13 | 
14 | 
15 | SOURCES += main.cpp \
16 |     ModbusTcpClient.cpp
17 | 
18 | HEADERS  += \
19 |     ModbusTcpClient.h
20 | 
21 | FORMS    += \
22 |     ModbusTcpClient.ui
23 | 


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--------------------------------------------------------------------------------
/ModbusTcpClient/ModbusTcpClient.ui:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="UTF-8"?>
  2 | <ui version="4.0">
  3 |  <class>ModbusTcpClient</class>
  4 |  <widget class="QMainWindow" name="ModbusTcpClient">
  5 |   <property name="geometry">
  6 |    <rect>
  7 |     <x>0</x>
  8 |     <y>0</y>
  9 |     <width>597</width>
 10 |     <height>457</height>
 11 |    </rect>
 12 |   </property>
 13 |   <property name="windowTitle">
 14 |    <string>ModbusTcpClient</string>
 15 |   </property>
 16 |   <widget class="QWidget" name="centralWidget">
 17 |    <layout class="QVBoxLayout" name="verticalLayout_3">
 18 |     <item>
 19 |      <layout class="QHBoxLayout" name="horizontalLayout">
 20 |       <item>
 21 |        <widget class="QLabel" name="label">
 22 |         <property name="text">
 23 |          <string>IP端口号:</string>
 24 |         </property>
 25 |        </widget>
 26 |       </item>
 27 |       <item>
 28 |        <widget class="QLineEdit" name="lineEdit"/>
 29 |       </item>
 30 |       <item>
 31 |        <widget class="QPushButton" name="connectButton">
 32 |         <property name="text">
 33 |          <string>connect</string>
 34 |         </property>
 35 |        </widget>
 36 |       </item>
 37 |      </layout>
 38 |     </item>
 39 |     <item>
 40 |      <layout class="QHBoxLayout" name="horizontalLayout_4">
 41 |       <item>
 42 |        <layout class="QVBoxLayout" name="verticalLayout">
 43 |         <item>
 44 |          <widget class="QLabel" name="label_2">
 45 |           <property name="text">
 46 |            <string>写入数据：</string>
 47 |           </property>
 48 |          </widget>
 49 |         </item>
 50 |         <item>
 51 |          <spacer name="verticalSpacer">
 52 |           <property name="orientation">
 53 |            <enum>Qt::Vertical</enum>
 54 |           </property>
 55 |           <property name="sizeHint" stdset="0">
 56 |            <size>
 57 |             <width>20</width>
 58 |             <height>40</height>
 59 |            </size>
 60 |           </property>
 61 |          </spacer>
 62 |         </item>
 63 |        </layout>
 64 |       </item>
 65 |       <item>
 66 |        <widget class="QTextEdit" name="textEdit"/>
 67 |       </item>
 68 |      </layout>
 69 |     </item>
 70 |     <item>
 71 |      <layout class="QHBoxLayout" name="horizontalLayout_3">
 72 |       <item>
 73 |        <widget class="QPushButton" name="sendButton_3">
 74 |         <property name="text">
 75 |          <string>清空</string>
 76 |         </property>
 77 |        </widget>
 78 |       </item>
 79 |       <item>
 80 |        <spacer name="horizontalSpacer">
 81 |         <property name="orientation">
 82 |          <enum>Qt::Horizontal</enum>
 83 |         </property>
 84 |         <property name="sizeHint" stdset="0">
 85 |          <size>
 86 |           <width>298</width>
 87 |           <height>20</height>
 88 |          </size>
 89 |         </property>
 90 |        </spacer>
 91 |       </item>
 92 |       <item>
 93 |        <widget class="QPushButton" name="sendButton">
 94 |         <property name="text">
 95 |          <string>Send</string>
 96 |         </property>
 97 |        </widget>
 98 |       </item>
 99 |      </layout>
100 |     </item>
101 |     <item>
102 |      <layout class="QHBoxLayout" name="horizontalLayout_5">
103 |       <item>
104 |        <layout class="QVBoxLayout" name="verticalLayout_2">
105 |         <item>
106 |          <widget class="QLabel" name="label_3">
107 |           <property name="text">
108 |            <string>读取数据：</string>
109 |           </property>
110 |          </widget>
111 |         </item>
112 |         <item>
113 |          <spacer name="verticalSpacer_2">
114 |           <property name="orientation">
115 |            <enum>Qt::Vertical</enum>
116 |           </property>
117 |           <property name="sizeHint" stdset="0">
118 |            <size>
119 |             <width>20</width>
120 |             <height>48</height>
121 |            </size>
122 |           </property>
123 |          </spacer>
124 |         </item>
125 |        </layout>
126 |       </item>
127 |       <item>
128 |        <widget class="QTextEdit" name="textEdit_2"/>
129 |       </item>
130 |      </layout>
131 |     </item>
132 |     <item>
133 |      <layout class="QHBoxLayout" name="horizontalLayout_2">
134 |       <item>
135 |        <widget class="QPushButton" name="sendButton_4">
136 |         <property name="text">
137 |          <string>清空</string>
138 |         </property>
139 |        </widget>
140 |       </item>
141 |       <item>
142 |        <spacer name="horizontalSpacer_2">
143 |         <property name="orientation">
144 |          <enum>Qt::Horizontal</enum>
145 |         </property>
146 |         <property name="sizeHint" stdset="0">
147 |          <size>
148 |           <width>298</width>
149 |           <height>20</height>
150 |          </size>
151 |         </property>
152 |        </spacer>
153 |       </item>
154 |       <item>
155 |        <widget class="QPushButton" name="readButton">
156 |         <property name="text">
157 |          <string>Read</string>
158 |         </property>
159 |        </widget>
160 |       </item>
161 |      </layout>
162 |     </item>
163 |    </layout>
164 |   </widget>
165 |   <widget class="QMenuBar" name="menuBar">
166 |    <property name="geometry">
167 |     <rect>
168 |      <x>0</x>
169 |      <y>0</y>
170 |      <width>597</width>
171 |      <height>25</height>
172 |     </rect>
173 |    </property>
174 |   </widget>
175 |   <widget class="QToolBar" name="mainToolBar">
176 |    <attribute name="toolBarArea">
177 |     <enum>TopToolBarArea</enum>
178 |    </attribute>
179 |    <attribute name="toolBarBreak">
180 |     <bool>false</bool>
181 |    </attribute>
182 |   </widget>
183 |   <widget class="QStatusBar" name="statusBar"/>
184 |  </widget>
185 |  <layoutdefault spacing="6" margin="11"/>
186 |  <resources/>
187 |  <connections/>
188 | </ui>
189 | 


--------------------------------------------------------------------------------
/ModbusTcpClient/main.cpp:
--------------------------------------------------------------------------------
 1 | #include "ModbusTcpClient.h"
 2 | #include <QApplication>
 3 | 
 4 | int main(int argc, char *argv[])
 5 | {
 6 |     QApplication a(argc, argv);
 7 |     ModbusTcpClient w;
 8 |     w.show();
 9 | 
10 |     return a.exec();
11 | }
12 | 


--------------------------------------------------------------------------------
/ModbusTcpServer/ModbusTcpServer.cpp:
--------------------------------------------------------------------------------
  1 | #include "ModbusTcpServer.h"
  2 | #include "ui_ModbusTcpServer.h"
  3 | #include <QModbusDevice>
  4 | #include <QSerialPort>
  5 | #include <QModbusRtuSerialSlave>
  6 | #include <QDebug>
  7 | #include <QUrl>
  8 | #include <QModbusTcpServer>
  9 | ModbusTcpServer::ModbusTcpServer(QWidget *parent) :
 10 |     QMainWindow(parent),
 11 |     ui(new Ui::ModbusTcpServer)
 12 | {
 13 |     ui->setupUi(this);
 14 | 
 15 |     modbusDevice = new QModbusTcpServer(this);
 16 |     if (ui->lineEdit->text().isEmpty())
 17 |         ui->lineEdit->setText(QLatin1Literal("127.0.0.1:502"));
 18 | 
 19 |     QModbusDataUnitMap reg;
 20 |     reg.insert(QModbusDataUnit::Coils, { QModbusDataUnit::Coils, 0, 10 });//
 21 |     reg.insert(QModbusDataUnit::DiscreteInputs, { QModbusDataUnit::DiscreteInputs, 0, 10 });
 22 |     reg.insert(QModbusDataUnit::InputRegisters, { QModbusDataUnit::InputRegisters, 0, 10 });
 23 |     reg.insert(QModbusDataUnit::HoldingRegisters, { QModbusDataUnit::HoldingRegisters, 0, 10 });
 24 | 
 25 |     modbusDevice->setMap(reg);//把reg设置给了全局的m_modbusDataUnitMap
 26 |     connect(modbusDevice, &QModbusServer::stateChanged,
 27 |             this, &ModbusTcpServer::onStateChanged);//连接状态发生改变时改变connect按钮上的显示文字（connect or discennect）
 28 | 
 29 | 
 30 |     connect(modbusDevice, &QModbusServer::dataWritten,
 31 |             this, &ModbusTcpServer::updateWidgets);//modbus客户端向服务器写入数据时dataWritten信号被触发
 32 |     connect(modbusDevice, &QModbusServer::errorOccurred,
 33 |             this, &ModbusTcpServer::handleDeviceError);
 34 | 
 35 | }
 36 | 
 37 | ModbusTcpServer::~ModbusTcpServer()
 38 | {
 39 |     delete ui;
 40 |     if (modbusDevice)
 41 |         modbusDevice->disconnectDevice();//清除
 42 |     delete modbusDevice;
 43 | }
 44 | 
 45 | void ModbusTcpServer::on_connectButton_clicked()
 46 | {
 47 |     if (!modbusDevice)
 48 |         return;
 49 |     statusBar()->clearMessage();
 50 | 
 51 |     QString comPortName = ui->lineEdit->text();
 52 |     if (modbusDevice->state() != QModbusDevice::ConnectedState) {//如果处在非连接状态，进行连接
 53 |         //进行TCP连接
 54 |         const QUrl url = QUrl::fromUserInput(ui->lineEdit->text());
 55 |         modbusDevice->setConnectionParameter(QModbusDevice::NetworkPortParameter, url.port());
 56 |         modbusDevice->setConnectionParameter(QModbusDevice::NetworkAddressParameter, url.host());
 57 |         modbusDevice->setServerAddress(1);
 58 |         if (!modbusDevice->connectDevice()) {
 59 |             statusBar()->showMessage(tr("Connect failed: ") + modbusDevice->errorString(), 5000);
 60 |         }
 61 |     }else{//处在连接状态进行断开连接的操作
 62 |         modbusDevice->disconnectDevice();
 63 |     }
 64 | }
 65 | 
 66 | void ModbusTcpServer::onStateChanged(int state)//判断联连状态是否改变，如改变则更改连接按钮上的文字
 67 | {
 68 | 
 69 |     if (state == QModbusDevice::UnconnectedState)
 70 |         ui->connectButton->setText(tr("Connect"));
 71 |     else if (state == QModbusDevice::ConnectedState)
 72 |         ui->connectButton->setText(tr("Disconnect"));
 73 | }
 74 | 
 75 | void ModbusTcpServer::updateWidgets(QModbusDataUnit::RegisterType table, int address, int size)
 76 | {
 77 |     for (int i = 0; i < size; ++i) {
 78 |         quint16 value;
 79 | 
 80 |         switch (table) {
 81 |         case QModbusDataUnit::Coils:
 82 |             modbusDevice->data(QModbusDataUnit::Coils, address + i, &value);
 83 |             qDebug()<<value;
 84 |             break;
 85 |         case QModbusDataUnit::HoldingRegisters:
 86 |             modbusDevice->data(QModbusDataUnit::HoldingRegisters, address + i, &value);//得到数据后做出显示
 87 |             qDebug()<<value;
 88 |             break;
 89 |         default:
 90 |             break;
 91 |         }
 92 |         QString s = QString::number(value, 16);
 93 |         qDebug("%d",value);
 94 |         ui->textEdit->append(s);
 95 |     }
 96 | }
 97 | 
 98 | void ModbusTcpServer::handleDeviceError(QModbusDevice::Error newError)//错误提示
 99 | {
100 |     if (newError == QModbusDevice::NoError || !modbusDevice)
101 |         return;
102 | 
103 |     statusBar()->showMessage(modbusDevice->errorString(), 5000);
104 | }
105 | 
106 | void ModbusTcpServer::on_clearButton_clicked()//清除texiedit上的文本
107 | {
108 |     ui->textEdit->clear();
109 | }
110 | 
111 | void ModbusTcpServer::on_writeButton_clicked()
112 | {
113 |     QString str = ui->textEdit_2->toPlainText();
114 |     QString str2 = str.replace(" ","");
115 | 
116 |     for(int i = 0 ;i < 10;i++)
117 |     {
118 |        int j = 2*i;
119 |        QString str1 = str2.mid(j,2);
120 |        bool ok;
121 |        quint16 hex = str1.toInt(&ok,16);
122 |        qDebug("%d",hex);
123 |        ok = modbusDevice->setData(QModbusDataUnit::HoldingRegisters, i, hex);
124 |     }
125 | }
126 | 


--------------------------------------------------------------------------------
/ModbusTcpServer/ModbusTcpServer.h:
--------------------------------------------------------------------------------
 1 | #ifndef ModbusTcpServer_H
 2 | #define ModbusTcpServer_H
 3 | 
 4 | #include <QMainWindow>
 5 | #include <QModbusDataUnit>
 6 | #include <QModbusServer>
 7 | namespace Ui {
 8 | class ModbusTcpServer;
 9 | }
10 | 
11 | class ModbusTcpServer : public QMainWindow
12 | {
13 |     Q_OBJECT
14 | 
15 | public:
16 |     explicit ModbusTcpServer(QWidget *parent = 0);
17 |     ~ModbusTcpServer();
18 | 
19 | private slots:
20 |     void on_connectButton_clicked();
21 | 
22 |     void onStateChanged(int state);
23 |     void updateWidgets(QModbusDataUnit::RegisterType table, int address, int size);
24 | 
25 |     void on_clearButton_clicked();
26 |     void handleDeviceError(QModbusDevice::Error newError);
27 |     void on_writeButton_clicked();
28 | 
29 | private:
30 |     Ui::ModbusTcpServer *ui;
31 |     QModbusServer *modbusDevice;//QModbusClient被QModbusRtuSerialMaster和QModbusTcpClient继成
32 | };
33 | 
34 | #endif // ModbusTcpServer_H
35 | 


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/ModbusTcpServer/ModbusTcpServer.pro:
--------------------------------------------------------------------------------
 1 | #-------------------------------------------------
 2 | #
 3 | # Project created by QtCreator 2016-08-05T11:15:00
 4 | #
 5 | #-------------------------------------------------
 6 | 
 7 | QT       += core gui serialbus serialport
 8 | 
 9 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
10 | 
11 | TARGET = ModbusTcpServer
12 | TEMPLATE = app
13 | 
14 | 
15 | SOURCES += main.cpp \
16 |     ModbusTcpServer.cpp
17 | 
18 | HEADERS  += \
19 |     ModbusTcpServer.h
20 | 
21 | FORMS    += \
22 |     ModbusTcpServer.ui
23 | 


--------------------------------------------------------------------------------
/ModbusTcpServer/ModbusTcpServer.pro.user:
--------------------------------------------------------------------------------
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309 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.CommandLineArguments"></value>
310 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.ProFile">ModbusTcpServer.pro</value>
311 |     <value type="bool" key="Qt4ProjectManager.Qt4RunConfiguration.UseDyldImageSuffix">false</value>
312 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.UserWorkingDirectory"></value>
313 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.UserWorkingDirectory.default">/home/maowendi/mao/Project/Qt/Qt_TCP_Modbus/build-ModbusTcpServer-Desktop_Qt_5_6_1_GCC_64bit-Debug</value>
314 |     <value type="uint" key="RunConfiguration.QmlDebugServerPort">3768</value>
315 |     <value type="bool" key="RunConfiguration.UseCppDebugger">false</value>
316 |     <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
317 |     <value type="bool" key="RunConfiguration.UseMultiProcess">false</value>
318 |     <value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
319 |     <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
320 |    </valuemap>
321 |    <value type="int" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
322 |   </valuemap>
323 |  </data>
324 |  <data>
325 |   <variable>ProjectExplorer.Project.TargetCount</variable>
326 |   <value type="int">1</value>
327 |  </data>
328 |  <data>
329 |   <variable>ProjectExplorer.Project.Updater.FileVersion</variable>
330 |   <value type="int">18</value>
331 |  </data>
332 |  <data>
333 |   <variable>Version</variable>
334 |   <value type="int">18</value>
335 |  </data>
336 | </qtcreator>
337 | 


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/ModbusTcpServer/ModbusTcpServer.ui:
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  1 | <?xml version="1.0" encoding="UTF-8"?>
  2 | <ui version="4.0">
  3 |  <class>ModbusTcpServer</class>
  4 |  <widget class="QMainWindow" name="ModbusTcpServer">
  5 |   <property name="geometry">
  6 |    <rect>
  7 |     <x>0</x>
  8 |     <y>0</y>
  9 |     <width>608</width>
 10 |     <height>499</height>
 11 |    </rect>
 12 |   </property>
 13 |   <property name="windowTitle">
 14 |    <string>ModbusTcpServer</string>
 15 |   </property>
 16 |   <widget class="QWidget" name="centralWidget">
 17 |    <layout class="QVBoxLayout" name="verticalLayout_3">
 18 |     <item>
 19 |      <layout class="QHBoxLayout" name="horizontalLayout">
 20 |       <item>
 21 |        <widget class="QLabel" name="label">
 22 |         <property name="text">
 23 |          <string>IP端口号：</string>
 24 |         </property>
 25 |        </widget>
 26 |       </item>
 27 |       <item>
 28 |        <widget class="QLineEdit" name="lineEdit">
 29 |         <property name="text">
 30 |          <string/>
 31 |         </property>
 32 |        </widget>
 33 |       </item>
 34 |       <item>
 35 |        <widget class="QPushButton" name="connectButton">
 36 |         <property name="text">
 37 |          <string>connect</string>
 38 |         </property>
 39 |        </widget>
 40 |       </item>
 41 |      </layout>
 42 |     </item>
 43 |     <item>
 44 |      <layout class="QHBoxLayout" name="horizontalLayout_5">
 45 |       <item>
 46 |        <layout class="QVBoxLayout" name="verticalLayout">
 47 |         <item>
 48 |          <widget class="QLabel" name="label_2">
 49 |           <property name="text">
 50 |            <string>接收数据：</string>
 51 |           </property>
 52 |          </widget>
 53 |         </item>
 54 |         <item>
 55 |          <spacer name="verticalSpacer">
 56 |           <property name="orientation">
 57 |            <enum>Qt::Vertical</enum>
 58 |           </property>
 59 |           <property name="sizeHint" stdset="0">
 60 |            <size>
 61 |             <width>20</width>
 62 |             <height>108</height>
 63 |            </size>
 64 |           </property>
 65 |          </spacer>
 66 |         </item>
 67 |        </layout>
 68 |       </item>
 69 |       <item>
 70 |        <widget class="QTextEdit" name="textEdit"/>
 71 |       </item>
 72 |      </layout>
 73 |     </item>
 74 |     <item>
 75 |      <layout class="QHBoxLayout" name="horizontalLayout_2">
 76 |       <item>
 77 |        <spacer name="horizontalSpacer">
 78 |         <property name="orientation">
 79 |          <enum>Qt::Horizontal</enum>
 80 |         </property>
 81 |         <property name="sizeHint" stdset="0">
 82 |          <size>
 83 |           <width>458</width>
 84 |           <height>20</height>
 85 |          </size>
 86 |         </property>
 87 |        </spacer>
 88 |       </item>
 89 |       <item>
 90 |        <widget class="QPushButton" name="clearButton">
 91 |         <property name="text">
 92 |          <string>清除</string>
 93 |         </property>
 94 |        </widget>
 95 |       </item>
 96 |      </layout>
 97 |     </item>
 98 |     <item>
 99 |      <layout class="QHBoxLayout" name="horizontalLayout_4">
100 |       <item>
101 |        <layout class="QVBoxLayout" name="verticalLayout_2">
102 |         <item>
103 |          <widget class="QLabel" name="label_3">
104 |           <property name="text">
105 |            <string>写入数据：</string>
106 |           </property>
107 |          </widget>
108 |         </item>
109 |         <item>
110 |          <spacer name="verticalSpacer_2">
111 |           <property name="orientation">
112 |            <enum>Qt::Vertical</enum>
113 |           </property>
114 |           <property name="sizeHint" stdset="0">
115 |            <size>
116 |             <width>20</width>
117 |             <height>88</height>
118 |            </size>
119 |           </property>
120 |          </spacer>
121 |         </item>
122 |        </layout>
123 |       </item>
124 |       <item>
125 |        <widget class="QTextEdit" name="textEdit_2"/>
126 |       </item>
127 |      </layout>
128 |     </item>
129 |     <item>
130 |      <layout class="QHBoxLayout" name="horizontalLayout_3">
131 |       <item>
132 |        <widget class="QPushButton" name="writeButton">
133 |         <property name="text">
134 |          <string>写入数据</string>
135 |         </property>
136 |        </widget>
137 |       </item>
138 |       <item>
139 |        <spacer name="horizontalSpacer_2">
140 |         <property name="orientation">
141 |          <enum>Qt::Horizontal</enum>
142 |         </property>
143 |         <property name="sizeHint" stdset="0">
144 |          <size>
145 |           <width>348</width>
146 |           <height>20</height>
147 |          </size>
148 |         </property>
149 |        </spacer>
150 |       </item>
151 |       <item>
152 |        <widget class="QPushButton" name="clearButton_2">
153 |         <property name="text">
154 |          <string>清除</string>
155 |         </property>
156 |        </widget>
157 |       </item>
158 |      </layout>
159 |     </item>
160 |    </layout>
161 |   </widget>
162 |   <widget class="QMenuBar" name="menuBar">
163 |    <property name="geometry">
164 |     <rect>
165 |      <x>0</x>
166 |      <y>0</y>
167 |      <width>608</width>
168 |      <height>25</height>
169 |     </rect>
170 |    </property>
171 |   </widget>
172 |   <widget class="QToolBar" name="mainToolBar">
173 |    <attribute name="toolBarArea">
174 |     <enum>TopToolBarArea</enum>
175 |    </attribute>
176 |    <attribute name="toolBarBreak">
177 |     <bool>false</bool>
178 |    </attribute>
179 |   </widget>
180 |   <widget class="QStatusBar" name="statusBar"/>
181 |  </widget>
182 |  <layoutdefault spacing="6" margin="11"/>
183 |  <resources/>
184 |  <connections/>
185 | </ui>
186 | 


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/ModbusTcpServer/main.cpp:
--------------------------------------------------------------------------------
 1 | #include "ModbusTcpServer.h"
 2 | #include <QApplication>
 3 | 
 4 | int main(int argc, char *argv[])
 5 | {
 6 |     QApplication a(argc, argv);
 7 |     ModbusTcpServer w;
 8 |     w.show();
 9 | 
10 |     return a.exec();
11 | }
12 | 


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/README.md:
--------------------------------------------------------------------------------
1 | # Qt_TCP_modbus
2 | Qt5.6.1 tcp modbus code
3 | 
4 | 
5 | it is me!
6 | 
7 | tag:
8 | 	the modbus tcp server and client code are changed from the modbus serial code.
9 | 


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