public bool init_plc_Connect() //与plc连接的初始化
{
bool status; //判断返回值是否对的标志
//SocketBase sk = new SocketBase();
if (SocketBase.initSocketBase())
{
SocketBase.SocketSend(plcHead1);
//Console.ReadKey();
if (SocketBase.SocketRec().Length == 22)
{
Logger.Infor("handshake first done");
SocketBase.SocketSend(plcHead2);
byte[] res = SocketBase.SocketRec();
if (res.Length == 27)
{
status = true;
Logger.Infor("handshake second done,init ok " + res);
}
else
{
status = false;
Logger.Error("handshake second failed");
}
}
else
{
//Console.WriteLine("rec {0}", SocketBase.SocketRec());
Logger.Error("handshake first error,plc init failed");
status = false;
}
}
else
{
status = false;
}
return(status);
}
public bool ReadByteData(int DBNode, int ioffset, byte datablockType, int byteCnt, out byte[] receiveData)
{
bool isSuccess = false;
try
{
#region 填充读取指令
ReadStructCmd readStruct = new ReadStructCmd();
readStruct.ReadCmdInit();
List <byte> readCmd = new List <byte>();
readCmd.AddRange(readStruct.headCmd);
readCmd.AddRange(readStruct.msgLenth);
readCmd.AddRange(readStruct.fixedCmd1);
//标识序列号，自定义
readStruct.serialFlag = new byte[] { 0x00, 0x05 };
readCmd.AddRange(readStruct.serialFlag);
readCmd.AddRange(readStruct.fixedCmd2);
byte[] readCnt = IntToByte(byteCnt);
if (readCnt.Length < 2)
{
readCmd.Add(0x00);
}
readCmd.AddRange(readCnt);
byte[] DBNo = IntToByte(DBNode);
if (DBNo.Length < 2)
{
readCmd.Add(0x00);
}
readCmd.AddRange(DBNo);
readCmd.Add(datablockType);
byte[] offset = IntToByte(ioffset * 8);
if (offset.Length == 1)
{
readCmd.Add(0x00);
readCmd.Add(0x00);
}
else if (offset.Length == 2)
{
readCmd.Add(0x00);
}
readCmd.AddRange(offset);
#endregion
SocketBase.SocketSend(readCmd.ToArray());
byte[] data = SocketBase.SocketRec();
int len = BitConverter.ToInt32(data.Skip(2).Take(2).ToArray(), 0);
if (len == 25 + byteCnt) //25+读取长度
{
receiveData = data.Skip(24).Take(data.Length - 24).ToArray();
//双字、单字处理？？？
getLittleEndianBytes(receiveData);
isSuccess = true;
}
else
{
receiveData = new byte[] { };
isSuccess = false;
}
}
catch (Exception ex)
{
LogHelper.Error("read byte error", ex);
receiveData = new byte[] { };
isSuccess = false;
}
return(isSuccess);
}
/// <summary>
/// msg区分写入1byte,2byte
/// </summary>
/// <param name="wData"></param>
/// <param name="WriteType"></param>
/// <param name="DBNode"></param>
/// <param name="ioffset"></param>
/// <param name="writeWay"></param>
/// <param name="datablockType"></param>
/// <returns></returns>
public bool writeByteData(byte[] wData, int WriteType, int DBNode, int ioffset, int writeWay, byte datablockType = 0x84)
{
bool isSuccess = false;
try
{
//writeStructCmd writeStruct = new writeStructCmd();
//writeStruct.writeCmdInit();
writeCmdInit();
List <byte> writeCmd = new List <byte>();
byte[] msgLen = IntToByte(35 + wData.Length);
if (msgLen.Length < 2)
{
writeCmd.Add(0x00);
}
writeCmd.AddRange(msgLen);
writeCmd.AddRange(fixedCmd1);
writeCmd.AddRange(serialFlag);
writeCmd.AddRange(fixedCmd2);
byte[] wLen = IntToByte(wData.Length + 4);
if (wLen.Length < 2)
{
writeCmd.Add(0x00);
}
writeCmd.AddRange(wLen);
writeCmd.AddRange(fixedCmd3);
byte wtype = (byte)(WriteType & 0xFF);
writeCmd.Add(wtype); //写入方式
byte[] len = new byte[] { };
if (WriteType == 1) //bit
{
len = IntToByte(wData.Length * 8);
}
else if (WriteType == 2)//byte
{
len = IntToByte(wData.Length);
}
if (len.Length < 2)
{
writeCmd.Add(0x00);
}
writeCmd.AddRange(len);
byte[] db = IntToByte(DBNode);
if (db.Length < 2)
{
writeCmd.Add(0x00);
}
writeCmd.AddRange(db);
writeCmd.Add(datablockType);
byte[] offset = IntToByte(ioffset * 8);
if (offset.Length == 1)
{
writeCmd.Add(0x00);
writeCmd.Add(0x00);
}
else if (offset.Length == 2)
{
writeCmd.Add(0x00);
}
writeCmd.AddRange(offset);
byte[] wWay = IntToByte(writeWay);
if (wWay.Length < 2)
{
writeCmd.Add(0x00);
}
writeCmd.AddRange(wWay);
byte[] bitCnt = IntToByte(wData.Length * 8);//写入bit的个数（以bit为单位)
if (wWay.Length < 2)
{
writeCmd.Add(0x00);
}
writeCmd.AddRange(bitCnt);
//双字、单字处理？？？
getLittleEndianBytes(wData);
writeCmd.AddRange(wData);
//发送数据
SocketBase.SocketSend(writeCmd.ToArray());
Thread.Sleep(500);
byte[] recvData = SocketBase.SocketRec();
if (recvData[0] == 0x03 && recvData[1] == 0x00 && recvData[recvData.Length - 1] == 0xFF)
//if(true)
{
Console.WriteLine(recvData);
Console.ReadKey();
isSuccess = true;
Logger.Infor("write ok");
}
else
{
isSuccess = false;
}
}
catch (Exception ex)
{
isSuccess = false;
Logger.Error("写入plc失败" + ex);
}
//Logger.Infor("写入plc成功");
return(isSuccess);
}
