#include "stdafx.h"
using namespace std;
void main()
{
	USHORT      nAdsState;	//包含PLC的信息
	USHORT      nDeviceState = 0;
	long        nErr, nPort;
	char         ch;
	void        *pData = NULL;
	AmsAddr     Addr;
	PAmsAddr    pAddr = &Addr;

	//建立接口通讯连接
	nPort = AdsPortOpen();
	nErr = AdsGetLocalAddress(pAddr);
	if (nErr) cerr << "Error: AdsGetLocalAddress: " << nErr << '\n';

	pAddr->port = 851;

	//输入控制命令
	cout << "(R) -> PLC Run\n";		//输入'R'启动PLC
	cout << "(S) -> PLC Stop\n";	//输入'S'停止PLC
	cout.flush();
	ch = getchar();
	ch = toupper(ch);
	//根据输入指令改变PLC的状态
	while ((ch == 'R') || (ch == 'S')) //实现循环控制
	{
		switch (ch)
		{
		case 'R':
			nAdsState = ADSSTATE_RUN;
			break;
		case 'S':
			nAdsState = ADSSTATE_STOP;
			break;
		}
		nErr = AdsSyncWriteControlReq(pAddr, nAdsState, nDeviceState, 0, pData);
		if (nErr) cerr << "Error: AdsSyncWriteControlReq: " << nErr << '\n';
		cin.ignore();
		ch = getchar();
		ch = toupper(ch);
	}

	//关闭端口通讯
	nErr = AdsPortClose();
	if (nErr) cerr << "Error: AdsPortClose: " << nErr << '\n';
}