Class S7Params

java.lang.Object
javaforce.controls.s7.S7Params
public class S7Params extends Object

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final byte
    CONNECT
     
    static final byte
    CPU
     
    byte
    func
     
    byte[]
    funcData
     
    static final byte
    READ
     
    static final byte
    READ_CLOCK
     
    static final byte
    REQUEST_TIME
     
    static final byte
    RESPONSE_TIME
     
    static final byte
    WRITE
     
    static final byte
    WRITE_CLOCK
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    S7Params()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    makeConnect()
    Create a packet to setup communications (connect) .
    void
    makeRead(S7Data s7)
    Create a packet to read single tag.
    void
    makeRead(S7Data[] s7s)
    Create a packet to read multiple tags.
    void
    makeReadTime()
    Create a packet to read PLC time.
    void
    makeWrite(byte block_type, int block_number, byte data_type, int off, int len, byte[] data)
    Create a packet to write data.
    void
    makeWriteTime(Calendar dt)
    Create a packet to write PLC time.
    boolean
    read(byte[] data, int offset, Calendar out)
    Reads params from packet and fills in Calendar.
    boolean
    read(byte[] data, int offset, S7Data out)
    Reads params from packet and fills in S7Data.
    boolean
    read(byte[] data, int offset, S7Data[] outs)
    Reads params from packet and fills in S7Data.
    int
    size()
    Returns size of params.
    void
    write(byte[] data, int offset)
    Write params to packet.

    Methods inherited from class Object

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

  • Field Details

  • Constructor Details

    • S7Params

      public S7Params()

  • Method Details

    • makeConnect

      public void makeConnect()
      Create a packet to setup communications (connect) .

    • makeRead

      public void makeRead(S7Data s7)
      Create a packet to read single tag.

    • makeRead

      public void makeRead(S7Data[] s7s)
      Create a packet to read multiple tags.

    • makeWrite

      public void makeWrite(byte block_type, int block_number, byte data_type, int off, int len, byte[] data)
      Create a packet to write data.

    • makeReadTime

      public void makeReadTime()
      Create a packet to read PLC time.

    • makeWriteTime

      public void makeWriteTime(Calendar dt)
      Create a packet to write PLC time.

    • size

      public int size()
      Returns size of params.

    • write

      public void write(byte[] data, int offset)
      Write params to packet.

    • read

      public boolean read(byte[] data, int offset, S7Data out) throws Exception
      Reads params from packet and fills in S7Data.
      Throws:
      Exception

    • read

      public boolean read(byte[] data, int offset, S7Data[] outs) throws Exception
      Reads params from packet and fills in S7Data.
      Throws:
      Exception

    • read

      public boolean read(byte[] data, int offset, Calendar out) throws Exception
      Reads params from packet and fills in Calendar.
      Throws:
      Exception