Simulink TCP/IP Client Receive模块无法接收C++发送的数据求助

我需要把C++程序的数据通过TCP发送到Simulink做后续处理，先在本机测试，之后计划跨设备传输。使用Simulink的TCP/IP Client Receive模块接收数据，但该模块始终无法接收到数据。

通过Wireshark验证，C++程序已成功发送数据。先后尝试发送包含3个逗号分隔坐标的字符串、单个double类型数据，均无法被Simulink接收，模块状态始终为False。怀疑是Simulink模块的datasize属性配置有误，但对该属性的含义理解模糊，官方文档说明不够清晰。

C++连接代码片段 #

// Initialize the endpoint to the loopback IP address and a specific port number
remote_endpoint = boost::asio::ip::tcp::endpoint(boost::asio::ip::address::from_string("127.0.0.1"), 9999);

std::cout << "Socket opened successfully" << std::endl;
std::cout << "Connecting to: " << remote_endpoint.address() << ":" << remote_endpoint.port() << std::endl;

try {
    tcp_socket.connect(remote_endpoint);
} catch (const boost::system::system_error& e) {
    std::cout << "Failed to connect: " << e.what() << std::endl;
}

//tcp_socket.connect(remote_endpoint);
std::cout << "Connected successfully" << std::endl;

发送的逗号分隔字符串示例 #

975000,518.000000,287.000000
980000,518.000000,287.000000
985000,518.000000,287.000000
990000,518.000000,287.000000
995000,518.000000,287.000000

Simulink配置 #

Simulink配置截图包含两个页面：模块参数配置页、数据类型配置页

更新：发送double类型数据的代码 #

// Pack the timestamp into a double
double data = static_cast<double>(ts);

// Print the timestamp
std::cout << "Timestamp: " << data << std::endl;

// Send the data over TCP
boost::system::error_code error;
boost::endian::big_to_native_inplace(data);
boost::asio::write(tcp_socket, boost::asio::buffer(&data, sizeof(data)), error);

// Error handling
if(!error) {
    std::cout << "Data sent successfully!" << std::endl;
} else {
    std::cout << "Send failed: " << error.message() << std::endl;
}

希望能得到排查该问题的思路和方法。

内容的提问来源于stack exchange，提问作者VEGETAO9000