public void Station04ScannerConnect(MainNetworkClass networkmain)
{
if (OP3CognexScanner != null)//change this to comport
{
try {
OP3CognexScanner.Close();
} catch (Exception ex) { log.Error("Station 4 scanner unable to close exception " + ex.ToString()); }
// OP2CognexScanner = null;
}
XmlDocument doc = new XmlDocument();
doc.Load(@"Config.xml");
XmlNode Scannernode = doc.SelectSingleNode(@"/CONFIG/SCANNER3/PORT");
String comport = Scannernode.InnerText;
XmlNode tryingtime = doc.SelectSingleNode(@"/CONFIG/SCANNER3/TRYINGTIME");
X = int.Parse(tryingtime.InnerText);
try {
if (OP3CognexScanner == null)
{
OP3CognexScanner = new SerialPort(comport);
OP3CognexScanner.BaudRate = 9600;
OP3CognexScanner.Parity = Parity.None;
OP3CognexScanner.StopBits = StopBits.One;
OP3CognexScanner.DataBits = 8;
networkmain.stn4log = "Scanner3 Open:" + comport;
}
OP3CognexScanner.Open();
} catch (Exception ex) {
log.Error("Station 4 scanner exception " + ex.ToString());
//OP2CognexScanner = null;
}
}
//public Logger Log3 = LogManager.GetLogger("Station04Scanner");
public void Station04Scanner(object msgobj)
{
MainNetworkClass networkmain = (MainNetworkClass)msgobj;
#region Station 4 Hand Scan and Data send to PLC
//Log3.Info("Thread Start");
ScanboxidSt4barcode = "\0\0\0\0\0\0\0\0\0\0";
while (!bTerminate)
{
Thread.Sleep(100);
// Log3.Info("Thread Loop Start");
// Log3.Info("Waiting PLC to send 'Read' Signal");
if ((ScanboxidSt4barcode == "\0\0\0\0\0\0\0\0\0\0") && PLCQueryRx[PLCQueryRx_DM177] == 0x00)
{
int cnt = 0;
string barcode = null;
try
{
Station04ScannerConnect(networkmain);
while ((cnt < 100) || (barcode == null) || barcode == "\r" || barcode == "")
{
try
{
OP3CognexScanner.ReadTimeout = 100;
barcode = OP3CognexScanner.ReadLine();
// if barcode avaliable break
Thread.Sleep(10);
//if(barcode == "\r")
//{
// continue;
//}
if (barcode != null && barcode != "\r" && barcode != "")
{
//PLCWriteCommand[PLCWriteCommand_DM399] = 0x02;
// Log3.Info("Station04Scanner Read: " + barcode);
ScanboxidSt4barcode = barcode.Trim();
break;
}
}
catch (Exception)
{
throw;
}
cnt++;
}
if (cnt > 100)
{
throw new TimeoutException();
}
}
catch (TimeoutException ex)
{
//Log3.Error("Timeout EX");
barcode = null;
continue;
}
catch (Exception ex)
{
// Log3.Error("EX");
barcode = null;
continue;
}
}
else
{
continue;
}
while (!bTerminate)
{
Thread.Sleep(100);
//Log3.Info("Trying to write barcode into PLC.");
// Write barcode into PLC
if ((ScanboxidSt4barcode != "\0\0\0\0\0\0\0\0\0\0") && PLCQueryRx[PLCQueryRx_DM177] == 0x00 && ScanboxidSt4barcode != null && ScanboxidSt4barcode != "")
{
string tmpstr;
byte[] tmpbyte;
tmpstr = ScanboxidSt4barcode;
tmpbyte = new byte[tmpstr.Length];
tmpbyte = Encoding.ASCII.GetBytes(tmpstr);
Array.Copy(tmpbyte, 0, PLCWriteCommand, XOFFSETForst4handscanbarcode, tmpstr.Length); //335
// PLCWriteCommand[PLCWriteCommand_DM399] = 0x08;
// Log3.Info("Write barcode into PLC successful");
break;
}
else
{
continue;
// break;
}
}// second loop
while (!bTerminate)
{
Thread.Sleep(100);
//Log3.Info("Waiting PLC to send 'Clear barcode' signal.");
if (PLCQueryRx[PLCQueryRx_DM177] == 0x8)
{ //177
ScanboxidSt4barcode = "\0\0\0\0\0\0\0\0\0\0";
CheckstringClearForstation4barcodeData(XOFFSETForst4handscanbarcode, ScanboxidSt4barcode);
break;
}
else
{
continue;
// break;
}
} //third
} //while Big loop end
#endregion
//Log3.Info("Thread Exit");
}
