1. 引用HslCommunication

Nuget包里边添加 HslCommunication包的引用

2.创建PLC连接对象，并通过 IP，端口进行连接

//PLC连接对象 
var plc = new MelsecMcNet(_ip, _port); 
 plc.ConnectTimeOut = 3000;

 var res = plc.ConnectServer();//连接PLC
 isConnect = res.IsSuccess;

3.读写操作

   读取操作
  var D2200_D2201 = plc.Read("D2200", 4);
  if (D2200_D2201.IsSuccess)
  {
      PLCDataInfo.D2200 = plc.ByteTransform.TransInt16(new byte[] { D2200_D2201.Content[0], D2200_D2201.Content[1] }, 0);
      PLCDataInfo.D2201 = plc.ByteTransform.TransInt16(new byte[] { D2200_D2201.Content[2], D2200_D2201.Content[3] }, 0);
  }

  写入操作
 OperateResult result = plc.Write("D6000", 1);

 if (result.IsSuccess)
 {
     return BaseResult.Successed;
 }