/// <summary>
/// 同一PLC不同DB块同时读取数据
/// </summary>
/// <param name="pLCAddrLists"></param>
/// <returns><eturns>
public int AsyncMultiDBStart()
{
_hda = new List <HistoryData>();
List <PLCAddrList> pLCAddrLists = GetPLCAddrLists(_Addr);
CancellationToken token = tokenSource.Token;
_dataTyte = comm.DataTyte.STRING;
_PLCDriver.IP = this._IP;
_PLCDriver.Connect();
if (IsConnect)
{
isFirst = false;
Result = "与PLC连接成功:" + _IP + "地址为" + _Addr + "---------" + DateTime.Now + "\r\n";
}
else
{
Result = "与PLC连接失败:" + _IP + "地址为" + _Addr + "---------" + DateTime.Now + "\r\n";
}
Task task = new Task(() =>
{
while (true)
{
try
{
string send = null;
string recive = null;
bool check = true;
double during = 0;
int length = 0;
string DBAddr = null;
foreach (var item in pLCAddrLists)
{
if (token.IsCancellationRequested)
{
_hda.Clear();
_PLCDriver.Dispose();
throw new OperationCanceledException(token);
}
send = GetRandomString(item.DataLenth * 2);
_PLCDriver.Address = item.Addr;
int ret = _PLCDriver.WriteBytes(SoftBasic.HexStringToBytes(send));
if (ret != 0)
{
string result = item.Addr + "写数据失败：" + _PLCDriver.ErrorCode + "---------" + DateTime.Now + "\r\n";
if (MessageEventHandler != null)
{
MessageEventHandler(result, null);
}
}
ret = _PLCDriver.ReadBytesResult(item.DataLenth);
if (ret != 0)
{
string result = _IP + item.Addr + "读数据失败：" + _PLCDriver.ErrorCode + "---------" + DateTime.Now + "\r\n";
if (MessageEventHandler != null)
{
MessageEventHandler(result, null);
}
}
byte[] ReciveData = _PLCDriver.ReadBuff as byte[];
recive = SoftBasic.ByteToHexString(ReciveData);
during += (_PLCDriver.Readtime - _PLCDriver.Sendtime).TotalMilliseconds;
check &= send.Equals(recive);
DBAddr += item.Addr;
length += item.DataLenth;
}
_hda.Add(new HistoryData(during, length, check, DateTime.Now, DBAddr)); // UpdateUIDelegate(LogMessage);
if (ListData.Count > 10)
{
switch (DataTyte)
{
case comm.DataTyte.BOOL:
break;
case comm.DataTyte.WORD:
SaveData <HistoryData>("HistoryData_Word" + ThreadCount, ListData);
break;
case comm.DataTyte.INT16:
SaveData <HistoryData>("HistoryData_Int16" + ThreadCount, ListData);
break;
case comm.DataTyte.INT32:
SaveData <HistoryData>("HistoryData_Int32" + ThreadCount, ListData);
break;
case comm.DataTyte.REAL:
SaveData <HistoryData>("HistoryData_real" + ThreadCount, ListData);
break;
case comm.DataTyte.STRING:
SaveData <HistoryData>("HistoryData_str" + ThreadCount, ListData);
break;
default:
break;
}
}
}
catch (Exception ex)
{
if (MessageEventHandler != null)
{
MessageEventHandler(_PLCDriver.ErrorCode + ex.Message.ToString(), null);
}
if (token.IsCancellationRequested)
{
break;
}
}
}
}, token);
task.Start();
return(0);
}