socket_send2plc.rar_PLC_plcsend_socket send 三菱 plc_三菱PLC

// sss.cpp : 定义控制台应用程序的入口点。 // #include "stdafx.h" #include<iostream> #include <winsock2.h> using namespace std; #pragma comment(lib, "ws2_32.lib") int main() { //加载套接字库 WSADATA wsaData; int iRet =0; iRet = WSAStartup(MAKEWORD(2, 2), &wsaData); if (iRet != 0) { cout << "WSAStartup(MAKEWORD(2, 2), &wsaData) execute failed!" << endl; system("pause"); return -1; } if (2 != LOBYTE(wsaData.wVersion) || 2 != HIBYTE(wsaData.wVersion)) { WSACleanup(); cout << "WSADATA version is not correct!" << endl; system("pause"); return -1; } //创建套接字 SOCKET clientSocket = socket(AF_INET, SOCK_STREAM, 0); if (clientSocket == INVALID_SOCKET) { cout << "clientSocket = socket(AF_INET, SOCK_STREAM, 0) execute failed!" << endl; system("pause"); return -1; } //初始化服务器端地址族变量 SOCKADDR_IN srvAddr; srvAddr.sin_addr.S_un.S_addr = inet_addr("192.168.100.100"); srvAddr.sin_family = AF_INET; srvAddr.sin_port = htons(6000); //连接服务器 iRet = connect(clientSocket, (SOCKADDR*)&srvAddr, sizeof(SOCKADDR)); if (0 != iRet) { cout << "connect(clientSocket, (SOCKADDR*)&srvAddr, sizeof(SOCKADDR)) execute failed!" << endl; system("pause"); return -1; } //接收消息 char recvBuf[100]; recv(clientSocket, recvBuf, 100, 0); printf("%s\n", recvBuf); //发送消息 char sendBuf[100]; sprintf_s(sendBuf, "500000FF03FF000018001004010000D*0000000010"); send(clientSocket, sendBuf, strlen(sendBuf)+1, 0); //清理 closesocket(clientSocket); WSACleanup(); system("pause"); return 0; }