CIP批量写入数据怎么使用C++在Windows下实现

CIP（Common Industrial Protocol）是一种用于工业自动化设备之间通信的协议。要在Windows下使用C++实现CIP批量写入数据，可以使用开源的CIP协议栈实现，例如OpENer（https://github.com/EIPStackGroup/OpENer）。

以下是一个使用OpENer实现CIP批量写入数据的示例：

#include "cipconnectionmanager.h"
#include "cipethernetlink.h"
#include "cipconnection.h"
#include "cipmessagerouter.h"
#include "cipcommon.h"
#include "ciperror.h"
#include "enet_encap.h"
#include "enet_encap_serialization.h"

// 定义要写入的数据
const uint8_t data[] = {0x01, 0x02, 0x03, 0x04, 0x05};

int main() {
    // 初始化OpENer协议栈
    CipStackInit();

    // 连接到设备
    CipEthernetLink link;
    link.ip_address = "192.168.1.10";
    link.mac_address = "00:11:22:33:44:55";
    link.netmask = "255.255.255.0";
    link.gateway = "192.168.1.1";
    link.interface_index = 1;
    CipConnectionManager::InsertEthernetLink(&link);

    // 创建连接
    CipConnection connection;
    connection.connection_path.class_id = CIP_CONNECTION_MANAGER_CLASS_CODE;
    connection.connection_path.instance_id = 1;
    connection.connection_path.attribute_id = 2;
    connection.connection_path.segment = kSegmentTypeLogical;
    connection.connection_path.port = 0xAF12; // 随意指定一个未被使用的端口号
    connection.connection_path.connection_point = 0;
    connection.connection_path.priority = 0;
    connection.connection_path.timeout_ticks = 0;
    connection.connection_path.transport_type = kTransportTypeTcp;
    connection.connection_path.owner_id = kOpenerConnectionOwnerTcpIp;
    connection.connection_path.connection_size = 0; // 由连接响应自动设置
    connection.connection_path.data = nullptr; // 由连接响应自动设置
    connection.remote_address = link.ip_address.c_str();
    connection.remote_port = 0xAF12; // 端口号与连接路径的一致
    connection.originator_address = "127.0.0.1";
    connection.originator_port = 12345;
    connection.connection_serial_number = 0;
    connection.connection_timeout_multiplier = 3;
    connection.o_to_t_requested_packet_interval_us = 1000;
    connection.t_to_o_requested_packet_interval_us = 1000;
    connection.connection_path.message_router_path_size = 2;
    connection.connection_path.message_router_path[0] = 0x20; // Class ID: 0x20 -> Assembly Object
    connection.connection_path.message_router_path[1] = 0x01; // Instance ID: 0x01 -> Assembly 1
    connection.connection_path.message_router_path[2] = 0x00; // Attribute ID: 0x00 -> Data

    // 建立连接
    CipError error = CipConnectionManager::Connect(&connection);
    if (error != kCipErrorSuccess) {
        printf("Failed to connect: %d\n", error);
        return -1;
    }

    // 构造CIP数据包
    EipUint32 interface_handle = link.interface_index;
    CipCommonPacketFormat cpf;
    CipMessageRouterRequestData request_data(
        0x10, // Service Code: 0x10 -> Multiple Service Packet
        3, // Request Path Size
        connection.connection_path.message_router_path, // Request Path
        sizeof(data), // Data Length
        data // Data
    );
    CipMessageRouterRequest message(
        interface_handle,
        &connection,
        &cpf,
        &request_data
    );

    // 发送CIP数据包
    std::vector<uint8_t> buffer(message.MessageRouterRequestPacketLength());
    message.Serialize(buffer.data());
    EnetEncapSendTo(&link, buffer.data(), buffer.size());

    // 断开连接
    CipConnectionManager::Close(&connection);

    // 关闭OpENer协议栈
    CipStackShutdown();

    return 0;
}

在以上示例中，我们首先初始化OpENer协议栈，然后连接到设备并创建CIP连接。接着，我们构造要写入的数据，并使用CipMessageRouterRequest类构造CIP数据包。最后，我们发送CIP数据包，并在完成后断开连接并关闭OpENer协议栈。