modbus slave build 1402下载

Modbus Slave是一种工业通信协议，用于在各种设备之间进行数据传输、监控和控制。Modbus Slave Build 1402是一个软件工具，可用于创建Modbus从站设备，在Modbus通信网络中与其他设备进行通信。

Modbus Slave Build 1402可以从官方网站上下载。用户可以在该网站上找到安装软件和使用文档。该软件可以在Windows、Linux和MacOS等操作系统上运行，并且支持多种串行和Ethernet连接方式。

使用Modbus Slave Build 1402，用户可以快速创建和测试Modbus从站设备。用户可以通过配置设备的地址、数据类型和寄存器映射等参数，以便与其他Modbus设备进行通信和数据传输。该软件还提供了实时监视和记录Modbus通信的功能，让用户能够更好的了解数据传输的情况。

总的来说，Modbus Slave Build 1402是一个功能强大的Modbus从站建立工具，适用于各种工业自动化和控制应用。通过下载和使用该软件，用户可以轻松创建和测试Modbus设备，提高其工作效率和灵活性。

相关问题

QT tcpmodbus 使用示例

好的，我会为您查找 QT tcpmodbus 使用示例。以下是一个基于QT的TCP Modbus主从模拟器，您可以参考：

1. 首先，在QT中创建一个新的工程，选择 QT GUI应用程序类型

2. 在工程目录中创建一个新的文件夹，例如“tcpmodbus”

3. 创建以下文件：

- tcpmodbus.pro
- main.cpp
- modbusconfig.h
- modbusconfig.cpp
- modbusmaster.h
- modbusmaster.cpp
- modbusslave.h
- modbusslave.cpp

4. 打开 tcpmodbus.pro 文件，添加以下内容：

QT += widgets network
HEADERS += modbusconfig.h \
           modbusmaster.h \
           modbusslave.h
SOURCES += main.cpp \
           modbusconfig.cpp \
           modbusmaster.cpp \
           modbusslave.cpp

5. 在 modbusconfig.h 文件中添加以下内容：

#ifndef MODBUSCONFIG_H
#define MODBUSCONFIG_H

const quint16 ModbusPort = 502;
const quint8 ModbusSlaveAddress = 1;

#endif // MODBUSCONFIG_H

6. 在 modbusmaster.h 文件中添加以下内容:

#ifndef MODBUSMASTER_H
#define MODBUSMASTER_H

#include <QObject>
#include <QTcpSocket>

class ModbusMaster : public QObject
{
    Q_OBJECT

public:
    explicit ModbusMaster(QObject *parent = nullptr);

private slots:
    void onConnected();
    void onDisconnected();
    void onError(QAbstractSocket::SocketError socketError);
    void onReadyRead();

private:
    void connectToServer();
    void sendRequest();

    QTcpSocket *tcpSocket;
    QByteArray request;
    QByteArray response;
    int transactionId;
};

#endif // MODBUSMASTER_H

7. 在 modbusmaster.cpp 文件中添加以下内容：

#include "modbusmaster.h"
#include "modbusconfig.h"

ModbusMaster::ModbusMaster(QObject *parent) : QObject(parent)
{
    connectToServer();
}

void ModbusMaster::onConnected()
{
    qDebug() << "Connected to server";

    // Send Modbus request
    sendRequest();
}

void ModbusMaster::onDisconnected()
{
    qDebug() << "Disconnected from server";
}

void ModbusMaster::onError(QAbstractSocket::SocketError socketError)
{
    qDebug() << "Error: " << tcpSocket->errorString();
}

void ModbusMaster::onReadyRead()
{
    // Read response
    response = tcpSocket->readAll();
    qDebug() << "Modbus response: " << response.toHex();

    // Disconnect from server
    tcpSocket->disconnectFromHost();
}

void ModbusMaster::connectToServer()
{
    // Initialize transaction Id
    transactionId = 0;

    // Create socket
    tcpSocket = new QTcpSocket(this);

    // Connect signals and slots
    connect(tcpSocket, &QTcpSocket::connected, this, &ModbusMaster::onConnected);
    connect(tcpSocket, &QTcpSocket::disconnected, this, &ModbusMaster::onDisconnected);
    connect(tcpSocket, static_cast<void(QAbstractSocket::*)(QAbstractSocket::SocketError)>(&QAbstractSocket::error),
            this, &ModbusMaster::onError);
    connect(tcpSocket, &QTcpSocket::readyRead, this, &ModbusMaster::onReadyRead);

    // Connect to server
    tcpSocket->connectToHost("127.0.0.1", ModbusPort);
}

void ModbusMaster::sendRequest()
{
    // Build Modbus request
    transactionId++;

    request.clear();
    request.append(0x00);
    request.append(0x00);
    request.append(0x00);
    request.append(0x00);
    request.append(0x00);
    request.append(0x06);
    request.append(ModbusSlaveAddress);
    request.append(0x01);
    request.append(0x00);
    request.append(0x00);
    request.append(0x00);
    request.append(0x01);

    // Send request
    tcpSocket->write(request);
}

8. 在 modbusslave.h 文件中添加以下内容：

#ifndef MODBUSSLAVE_H
#define MODBUSSLAVE_H

#include <QObject>
#include <QTcpServer>
#include <QTcpSocket>

class ModbusSlave : public QObject
{
    Q_OBJECT

public:
    explicit ModbusSlave(QObject *parent = nullptr);

private slots:
    void onNewConnection();
    void onDisconnected();
    void onError(QAbstractSocket::SocketError socketError);
    void onReadyRead();

private:
    void sendResponse(const QByteArray& request);

    QTcpServer *tcpServer;
    QList<QTcpSocket*> sockets;
};

#endif // MODBUSSLAVE_H

9. 在 modbusslave.cpp 文件中添加以下内容：

#include "modbusslave.h"
#include "modbusconfig.h"

ModbusSlave::ModbusSlave(QObject *parent) : QObject(parent)
{
    // Create server
    tcpServer = new QTcpServer(this);

    // Connect signals and slots
    connect(tcpServer, &QTcpServer::newConnection, this, &ModbusSlave::onNewConnection);

    // Listen for incoming connections
    tcpServer->listen(QHostAddress::Any, ModbusPort);
    qDebug() << "Modbus slave listening on port " << tcpServer->serverPort();
}

void ModbusSlave::onNewConnection()
{
    // Accept incoming connection
    QTcpSocket *socket = tcpServer->nextPendingConnection();

    // Connect signals and slots
    connect(socket, &QTcpSocket::disconnected, this, &ModbusSlave::onDisconnected);
    connect(socket, static_cast<void(QAbstractSocket::*)(QAbstractSocket::SocketError)>(&QAbstractSocket::error),
            this, &ModbusSlave::onError);
    connect(socket, &QTcpSocket::readyRead, this, &ModbusSlave::onReadyRead);

    // Add socket to list
    sockets.append(socket);

    qDebug() << "New Modbus connection established";
}

void ModbusSlave::onDisconnected()
{
    // Remove socket from list
    QTcpSocket *socket = static_cast<QTcpSocket*>(sender());
    sockets.removeOne(socket);

    qDebug() << "Modbus connection disconnected";
}

void ModbusSlave::onError(QAbstractSocket::SocketError socketError)
{
    qDebug() << "Error: " << static_cast<QTcpSocket*>(sender())->errorString();
}

void ModbusSlave::onReadyRead()
{
    // Get request
    QTcpSocket *socket = static_cast<QTcpSocket*>(sender());
    QByteArray request = socket->readAll();
    qDebug() << "Modbus request: " << request.toHex();

    // Send response
    sendResponse(request);
}

void ModbusSlave::sendResponse(const QByteArray& request)
{
    QByteArray response;

    // Check slave address
    if (request.at(6) != ModbusSlaveAddress) {
        qDebug() << "Error: wrong slave address";
        return;
    }

    // Check function code
    if (request.at(7) != 0x01) {
        qDebug() << "Error: wrong function code";
        return;
    }

    // Build response
    response.append(request.at(0)); // Transaction Id
    response.append(request.at(1)); // Transaction Id
    response.append(request.at(2)); // Protocol Id
    response.append(request.at(3)); // Protocol Id
    response.append(0x00); // Message length
    response.append(0x06); // Message length
    response.append(ModbusSlaveAddress); // Slave address
    response.append(0x01); // Function code
    response.append(0x01); // Byte count
    response.append(0x00); // Value
    response.append(0x01); // Value

    // Send response to all sockets
    for (QTcpSocket *socket : sockets) {
        socket->write(response);
    }

    qDebug() << "Modbus response: " << response.toHex();
}

10. 在 main.cpp 文件中添加以下内容：

#include <QCoreApplication>
#include "modbusmaster.h"
#include "modbusslave.h"

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    // Start Modbus slave
    ModbusSlave modbusSlave;

    // Start Modbus master after 1 second delay
    QTimer::singleShot(1000, [&]() {
        ModbusMaster modbusMaster;
    });

    return a.exec();
}

11. 编译和执行程序。

12. 打开新的QT控制台，输入以下命令来查看 TCP Modbus 数据：

tcpdump -i lo -A port 502

注意：此示例仅用于演示目的，应根据实际要求进行修改和优化，例如加密和身份验证。

modbus c语言源码

以下是一个简单的使用C语言实现Modbus协议的源代码示例，供参考：

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>

#define SLAVE_ADDRESS 0x01

/* Modbus function codes */
#define READ_COILS 0x01
#define READ_DISCRETE_INPUTS 0x02
#define READ_HOLDING_REGISTERS 0x03
#define READ_INPUT_REGISTERS 0x04
#define WRITE_SINGLE_COIL 0x05
#define WRITE_SINGLE_REGISTER 0x06
#define WRITE_MULTIPLE_COILS 0x0F
#define WRITE_MULTIPLE_REGISTERS 0x10

/* Modbus exception codes */
#define EXCEPTION_ILLEGAL_FUNCTION 0x01
#define EXCEPTION_ILLEGAL_DATA_ADDRESS 0x02
#define EXCEPTION_ILLEGAL_DATA_VALUE 0x03
#define EXCEPTION_SLAVE_DEVICE_FAILURE 0x04
#define EXCEPTION_ACKNOWLEDGE 0x05
#define EXCEPTION_SLAVE_DEVICE_BUSY 0x06
#define EXCEPTION_MEMORY_PARITY_ERROR 0x08
#define EXCEPTION_GATEWAY_PATH_UNAVAILABLE 0x0A
#define EXCEPTION_GATEWAY_TARGET_DEVICE_FAILED_TO_RESPOND 0x0B

/* Modbus TCP/IP frame format */
typedef struct {
    uint16_t transaction_identifier;
    uint16_t protocol_identifier;
    uint16_t length;
    uint8_t unit_identifier;
    uint8_t function_code;
    uint8_t data[];
} modbus_frame_t;

/* Modbus response frame format */
typedef struct {
    uint16_t transaction_identifier;
    uint16_t protocol_identifier;
    uint16_t length;
    uint8_t unit_identifier;
    uint8_t function_code;
    uint8_t byte_count;
    uint8_t data[];
} modbus_response_t;

/* Modbus exception response frame format */
typedef struct {
    uint16_t transaction_identifier;
    uint16_t protocol_identifier;
    uint16_t length;
    uint8_t unit_identifier;
    uint8_t function_code;
    uint8_t exception_code;
} modbus_exception_t;

/* Calculate Modbus CRC */
uint16_t modbus_crc(uint8_t *data, uint16_t length) {
    uint16_t crc = 0xFFFF;
    uint8_t i, j;

    for (i = 0; i < length; i++) {
        crc ^= data[i];

        for (j = 0; j < 8; j++) {
            if (crc & 0x0001) {
                crc >>= 1;
                crc ^= 0xA001;
            } else {
                crc >>= 1;
            }
        }
    }

    return crc;
}

/* Send Modbus request and receive response */
int modbus_request(uint8_t *request, uint16_t request_length, uint8_t *response, uint16_t *response_length) {
    /* TODO: Implement Modbus request and response handling */
    return 0;
}

/* Read multiple holding registers */
int modbus_read_holding_registers(uint16_t register_address, uint16_t register_count, uint16_t *register_values) {
    uint8_t request[256];
    uint16_t request_length;
    uint8_t response[256];
    uint16_t response_length;

    /* Build Modbus request */
    request_length = 0;
    request[request_length++] = SLAVE_ADDRESS;
    request[request_length++] = READ_HOLDING_REGISTERS;
    request[request_length++] = (register_address >> 8) & 0xFF;
    request[request_length++] = register_address & 0xFF;
    request[request_length++] = (register_count >> 8) & 0xFF;
    request[request_length++] = register_count & 0xFF;

    /* Calculate Modbus CRC */
    uint16_t crc = modbus_crc(request, request_length);
    request[request_length++] = crc & 0xFF;
    request[request_length++] = (crc >> 8) & 0xFF;

    /* Send Modbus request and receive response */
    if (modbus_request(request, request_length, response, &response_length) != 0) {
        printf("Error: Modbus request failed!\n");
        return -1;
    }

    /* Parse Modbus response */
    modbus_response_t *modbus_response = (modbus_response_t *) response;
    if (modbus_response->unit_identifier != SLAVE_ADDRESS) {
        printf("Error: Invalid Modbus slave address!\n");
        return -1;
    }
    if (modbus_response->function_code == READ_HOLDING_REGISTERS + 0x80) {
        modbus_exception_t *modbus_exception = (modbus_exception_t *) response;
        printf("Error: Modbus exception code %d!\n", modbus_exception->exception_code);
        return -1;
    }
    if (modbus_response->function_code != READ_HOLDING_REGISTERS) {
        printf("Error: Invalid Modbus function code!\n");
        return -1;
    }
    if (modbus_response->byte_count != register_count * 2) {
        printf("Error: Invalid Modbus byte count!\n");
        return -1;
    }
    memcpy(register_values, modbus_response->data, register_count * 2);

    return 0;
}

/* Main function */
int main(int argc, char **argv) {
    /* Read holding registers */
    uint16_t register_values[16];
    if (modbus_read_holding_registers(0x0000, 16, register_values) != 0) {
        printf("Error: Failed to read Modbus holding registers!\n");
        return -1;
    }
    for (int i = 0; i < 16; i++) {
        printf("Register %d: %d\n", i, register_values[i]);
    }

    return 0;
}

请注意，这个示例仅仅是一个简单的模板，实际应用中需要根据具体情况进行修改和完善。同时，还需要实现Modbus协议的物理层和传输层，例如串口通信或TCP/IP通信。