Knowledge Base Nr: 00214 megamattcp.cpp - http://www.swe-kaiser.de

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Qt: hochregallageransteuerung megalift/megamat über tcp/ip

  
#include <qsocketdevice.h>

char g_szHost[100] = "192.168.0.160";
int g_nPort = 2002;

int hw_megamatPositionieren(char *command)
{
  printf("\n\nMegamatschnittstelle senden: <%s>\n", command);

  QHostAddress hadr;
  hadr.setAddress(g_szHost);

  QSocketDevice sock(QSocketDevice::Datagram);

  bool bSucc = sock.connect(hadr, g_nPort);
  if (bSucc)
  {
    sock.setBlocking(false);

    int nWritten = 0;
    char buf[]="XX55\r";
    buf[0]=command[0]; //TurmAdresseumkopieren
    buf[1]=command[1];

//
    nWritten = sock.writeBlock(buf, strlen(buf));

    printf("Megamatschnittstelle send %d bytes from %d  <%s>\n", nWritten, strlen(buf), buf);

    if (nWritten <= 0)
    {
      return -1;
    }
//
    strcat(command, "\r");
    nWritten = sock.writeBlock(command, strlen(command));

    printf("Megamatschnittstelle send %d bytes from %d  <%s>\n", nWritten, strlen(command), command);

    if (nWritten <= 0)
    {
      return -1;
    }
//
    buf[2]='5';
    buf[3]='0';

    nWritten = sock.writeBlock(buf, strlen(buf));

    printf("Megamatschnittstelle send %d bytes from %d  <%s>\n", nWritten, strlen(buf), buf);

    if (nWritten <= 0)
    {
      return -1;
    }
//

    buf[2]='3';
    buf[3]='0';

    nWritten = sock.writeBlock(buf, strlen(buf));

    printf("Megamatschnittstelle send %d bytes from %d  <%s>\n", nWritten, strlen(buf), buf);

    if (nWritten <= 0)
    {
      return -1;
    }
//

    //enum Error { NoError, AlreadyBound, Inaccessible, NoResources, InternalError, Bug = InternalError, Impossible, NoFiles, ConnectionRefused, NetworkFailure, UnknownError }
    QSocketDevice::Error nErr = sock.error();

    printf("Megamatschnittstelle QSocketDevice::Error = %d { NoError, AlreadyBound, Inaccessible, NoResources, InternalError, Bug = InternalError, Impossible, NoFiles, ConnectionRefused, NetworkFailure, UnknownError }\n", nErr);

    if (nErr != QSocketDevice::NoError)
    {
      return -2;
    }
  }
  else
  {
    printf("Megamatschnittstelle connect(%s, %d) failed\n", g_szHost, g_nPort);

    return -3;
  }

  printf("Megamatschnittstelle  finished\n");

  return 0;
}

void Form2::newSlot()
{
    strcpy(g_szHost,  lineEditIP->text());
    g_nPort = lineEditPort->text().toInt();

    int nTurmNr = lineEditTurmNo->text().toInt();
    int nTabNr =lineEditTabNo->text().toInt();

    char szCommand[1000] = {0};
    sprintf(szCommand, "%02d05%03d000000000000000 Tablar %03d                             X", nTurmNr, nTabNr, (nTurmNr*100)+nTabNr);
    int nErr = hw_megamatPositionieren(szCommand);

    QString str;
    str.sprintf("LastErr: %d", nErr);
    textLabelEMegamat->setText(str);
}