Package org.apache.plc4x.java.s7.readwrite.tag

Class S7Tag

java.lang.Object

org.apache.plc4x.java.s7.readwrite.tag.S7Tag

All Implemented Interfaces:

PlcTag, Serializable

Direct Known Subclasses:

S7StringFixedLengthTag, S7StringVarLengthTag

public class S7Tag
extends Object
implements PlcTag, Serializable

Field Summary

Fields

Modifier and Type	Field	Description
protected static String	BIT_OFFSET
protected static String	BLOCK_NUMBER
protected static String	BYTE_OFFSET
protected static String	DATA_TYPE
protected static String	MEMORY_AREA
protected static String	NUM_ELEMENTS
protected static String	STRING_LENGTH
protected static String	TRANSFER_SIZE_CODE

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	S7Tag(TransportSize dataType, MemoryArea memoryArea, int blockNumber, int byteOffset, byte bitOffset, int numElements)

Method Summary

Modifier and Type	Method	Description
protected static int	checkByteOffset(int byteOffset)	checks if ByteOffset from S7Tag is in valid range
protected static int	checkDataBlockNumber(int blockNumber)	checks if DataBlockNumber of S7Tag is in valid range
String	getAddressString()
List<ArrayInfo>	getArrayInfo()
byte	getBitOffset()
int	getBlockNumber()
int	getByteOffset()
TransportSize	getDataType()
MemoryArea	getMemoryArea()
protected static MemoryArea	getMemoryAreaForShortName(String shortName)
int	getNumberOfElements()
String	getPlcDataType()
PlcValueType	getPlcValueType()
protected static Short	getSizeCode(String value)
static boolean	matches(String tagString)
static S7Tag	of(String tagString)
void	serialize(WriteBuffer writeBuffer)
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

DATA_TYPE

protected static final String DATA_TYPE

See Also:

Constant Field Values

STRING_LENGTH

protected static final String STRING_LENGTH

See Also:

Constant Field Values

TRANSFER_SIZE_CODE

protected static final String TRANSFER_SIZE_CODE

See Also:

Constant Field Values

BLOCK_NUMBER

protected static final String BLOCK_NUMBER

See Also:

Constant Field Values

BYTE_OFFSET

protected static final String BYTE_OFFSET

See Also:

Constant Field Values

BIT_OFFSET

protected static final String BIT_OFFSET

See Also:

Constant Field Values

NUM_ELEMENTS

protected static final String NUM_ELEMENTS

See Also:

Constant Field Values

MEMORY_AREA

protected static final String MEMORY_AREA

See Also:

Constant Field Values

Constructor Detail

S7Tag

protected S7Tag(TransportSize dataType,
                MemoryArea memoryArea,
                int blockNumber,
                int byteOffset,
                byte bitOffset,
                int numElements)

Method Detail

getAddressString

public String getAddressString()

Specified by:

getAddressString in interface PlcTag

getPlcValueType

public PlcValueType getPlcValueType()

Specified by:

getPlcValueType in interface PlcTag

getArrayInfo

public List<ArrayInfo> getArrayInfo()

Specified by:

getArrayInfo in interface PlcTag

getDataType

public TransportSize getDataType()

getPlcDataType

public String getPlcDataType()

getMemoryArea

public MemoryArea getMemoryArea()

getBlockNumber

public int getBlockNumber()

getByteOffset

public int getByteOffset()

getBitOffset

public byte getBitOffset()

getNumberOfElements

public int getNumberOfElements()

matches

public static boolean matches(String tagString)

of

public static S7Tag of(String tagString)

checkDataBlockNumber

protected static int checkDataBlockNumber(int blockNumber)

checks if DataBlockNumber of S7Tag is in valid range

Parameters:

blockNumber - given DataBlockNumber

Returns:

given blockNumber if Ok, throws PlcInvalidTagException otherwise

checkByteOffset

protected static int checkByteOffset(int byteOffset)

checks if ByteOffset from S7Tag is in valid range

Parameters:

byteOffset - given byteOffset

Returns:

given byteOffset if Ok, throws PlcInvalidTagException otherwise

getSizeCode

protected static Short getSizeCode(String value)

getMemoryAreaForShortName

protected static MemoryArea getMemoryAreaForShortName(String shortName)

toString

public String toString()

Overrides:

toString in class Object

serialize

public void serialize(WriteBuffer writeBuffer)
               throws SerializationException

Specified by:

serialize in interface Serializable

Throws:

SerializationException