net.wimpi.modbus.msg
Class ExceptionResponse

java.lang.Object
  net.wimpi.modbus.msg.ModbusMessageImpl
      net.wimpi.modbus.msg.ModbusResponse
          net.wimpi.modbus.msg.ExceptionResponse

All Implemented Interfaces:

Transportable, ModbusMessage

public class ExceptionResponse
extends ModbusResponse

Provides the aModbusResponse implementation that represents a Modbus exception.

Version:

@version@ (@date@)

Author:

Dieter Wimberger

Constructor Summary

ExceptionResponse()
Constructs a new ExceptionResponse instance.

ExceptionResponse(int fc)
Constructs a new ExceptionResponse instance with a given function code.

ExceptionResponse(int fc, int exc)
Constructs a new ExceptionResponse instance with a given function code and an exception code.

Method Summary

int	getExceptionCode() Returns the Modbus exception code of this ExceptionResponse.
void	readData(DataInput din) Reads the subclass specific data from the given DataInput instance.
void	writeData(DataOutput dout) Writes the subclass specific data to the given DataOutput.

Methods inherited from class net.wimpi.modbus.msg.ModbusResponse

createModbusResponse

Methods inherited from class net.wimpi.modbus.msg.ModbusMessageImpl

getDataLength, getFunctionCode, getHexMessage, getOutputLength, getProtocolID, getTransactionID, getUnitID, isHeadless, readFrom, setDataLength, setHeadless, setProtocolID, setTransactionID, setUnitID, writeTo

Methods inherited from class java.lang.Object

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

Constructor Detail

ExceptionResponse

public ExceptionResponse()

Constructs a new ExceptionResponse instance.

ExceptionResponse

public ExceptionResponse(int fc)

Constructs a new ExceptionResponse instance with a given function code. Adds the exception offset automatically.

Parameters:

fc - the function code as int.

ExceptionResponse

public ExceptionResponse(int fc,
                         int exc)

Constructs a new ExceptionResponse instance with a given function code and an exception code. The function code will be automatically increased with the exception offset.

Parameters:

fc - the function code as int.

exc - the exception code as int.

Method Detail

getExceptionCode

public int getExceptionCode()

Returns the Modbus exception code of this ExceptionResponse.

Returns:

the exception code as int.

writeData

public void writeData(DataOutput dout)
               throws IOException

Description copied from class: ModbusMessageImpl

Writes the subclass specific data to the given DataOutput.

Specified by:

writeData in class ModbusMessageImpl

Parameters:

dout - the DataOutput to be written to.

Throws:

IOException - if an I/O related error occurs.

readData

public void readData(DataInput din)
              throws IOException

Description copied from class: ModbusMessageImpl

Reads the subclass specific data from the given DataInput instance.

Specified by:

readData in class ModbusMessageImpl

Parameters:

din - the DataInput to read from.

Throws:

IOException - if an I/O related error occurs.