net.wimpi.modbus
Class ModbusCoupler

java.lang.Object
  net.wimpi.modbus.ModbusCoupler

public class ModbusCoupler
extends Object

Class implemented following a Singleton pattern, to couple the slave side with a master side or with a device.

At the moment it only provides a reference to the OO model of the process image.

Version:

1.2 (@date@)

Author:

Dieter Wimberger

Field Summary

private static ModbusCoupler	c_Self
private boolean	m_Master
private ProcessImageFactory	m_PIFactory
private ProcessImage	m_ProcessImage
private int	m_UnitID

Constructor Summary

private	ModbusCoupler()
private	ModbusCoupler(ProcessImage procimg) Private constructor to prevent multiple instantiation.

Method Summary

ProcessImage	getProcessImage() Returns a reference to the ProcessImage of this ModbusCoupler.
ProcessImageFactory	getProcessImageFactory() Returns the actual ProcessImageFactory instance.
static ModbusCoupler	getReference() Returns a reference to the singleton instance.
int	getUnitID() Returns the identifier of this unit.
boolean	isMaster() Tests if this instance is a master device.
boolean	isSlave() Tests if this instance is not a master device.
void	setMaster(boolean master) Sets this instance to be or not to be a master device.
void	setProcessImage(ProcessImage procimg) Sets the reference to the ProcessImage of this ModbusCoupler.
void	setProcessImageFactory(ProcessImageFactory factory) Sets the ProcessImageFactory instance.
void	setUnitID(int id) Sets the identifier of this unit, which is needed to be determined in a serial network.

Methods inherited from class java.lang.Object

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

Field Detail

c_Self

private static ModbusCoupler c_Self

m_ProcessImage

private ProcessImage m_ProcessImage

m_UnitID

private int m_UnitID

m_Master

private boolean m_Master

m_PIFactory

private ProcessImageFactory m_PIFactory

Constructor Detail

ModbusCoupler

private ModbusCoupler()

ModbusCoupler

private ModbusCoupler(ProcessImage procimg)

Private constructor to prevent multiple instantiation.

Parameters:

procimg - a ProcessImage.

Method Detail

getProcessImageFactory

public ProcessImageFactory getProcessImageFactory()

Returns the actual ProcessImageFactory instance.

Returns:

a ProcessImageFactory instance.

setProcessImageFactory

public void setProcessImageFactory(ProcessImageFactory factory)

Sets the ProcessImageFactory instance.

Parameters:

factory - the instance to be used for creating process image instances.

getProcessImage

public ProcessImage getProcessImage()

Returns a reference to the ProcessImage of this ModbusCoupler.

Returns:

the ProcessImage.

setProcessImage

public void setProcessImage(ProcessImage procimg)

Sets the reference to the ProcessImage of this ModbusCoupler.

Parameters:

procimg - the ProcessImage to be set.

getUnitID

public int getUnitID()

Returns the identifier of this unit. This identifier is required to be set for serial protocol slave implementations.

Returns:

the unit identifier as int.

setUnitID

public void setUnitID(int id)

Sets the identifier of this unit, which is needed to be determined in a serial network.

Parameters:

id - the new unit identifier as int.

isMaster

public boolean isMaster()

Tests if this instance is a master device.

Returns:

true if master, false otherwise.

isSlave

public boolean isSlave()

Tests if this instance is not a master device.

Returns:

true if slave, false otherwise.

setMaster

public void setMaster(boolean master)

Sets this instance to be or not to be a master device.

Parameters:

master - true if master device, false otherwise.

getReference

public static final ModbusCoupler getReference()

Returns a reference to the singleton instance.

Returns:

the ModbusCoupler instance reference.