S7BlockInfo.java

/**
 * Copyright (c) 2013-2016 by the respective copyright holders.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 */
package Moka7;
import java.util.Date;
/**
 *
 * @author Davide Nardella
 * @since 1.9.0
 */
public class S7BlockInfo {

    private final int BufSize = 96;
    // MilliSeconds between 1970/1/1 (Java time base) and 1984/1/1 (Siemens base)
    private final long DeltaMilliSecs = 441763200000L;
    protected byte[] Buffer = new byte[BufSize];

    protected void Update(byte[] Src, int Pos)
    {
        System.arraycopy(Src, Pos, Buffer, 0, BufSize);
    }
    public int BlkType()
    {
       return Buffer[2];
    }
    public int BlkNumber()
    {
       return S7.GetWordAt(Buffer, 3);
    }
    public int BlkLang()
    {
       return Buffer[1];
    }
    public int BlkFlags()
    {
       return Buffer[0];
    }
    public int MC7Size()  // The real size in bytes
    {
       return S7.GetWordAt(Buffer, 31);
    }
    public int LoadSize()
    {
       return S7.GetDIntAt(Buffer, 5);
    }
    public int LocalData()
    {
       return S7.GetWordAt(Buffer, 29);
    }
    public int SBBLength()
    {
       return S7.GetWordAt(Buffer, 25);
    }
    public int Checksum()
    {
       return S7.GetWordAt(Buffer, 59);
    }
    public int Version()
    {
       return Buffer[57];
    }
    public Date CodeDate()
    {
        long BlockDate = ((long)S7.GetWordAt(Buffer, 17))*86400000L+DeltaMilliSecs;
        return new Date(BlockDate);
    }
    public Date IntfDate()
    {
        long BlockDate = ((long)S7.GetWordAt(Buffer, 23))*86400000L+DeltaMilliSecs;
        return new Date(BlockDate);
    }
    public String Author()
    {
      return S7.GetStringAt(Buffer,33,8);
    }
    public String Family()
    {
      return S7.GetStringAt(Buffer,41,8);
    }
    public String Header()
    {
      return S7.GetStringAt(Buffer,49,8);
    }

}