Package com.automation_pros.odva.cip.application

Class CipBackplane

java.lang.Object

com.automation_pros.odva.cip.application.CipBackplane

public class CipBackplane
extends java.lang.Object

CIP devices may have a backplane/chassis in their design. The specification requires that a device's port #1, if it exists, be the backplane port. If multiple backplanes exist in a device's design, one of them must be port 1. The others can use any port number.

When a device creates LocalBusPort in a Port Manager, it passes the bus instance for the chassis and the slot number to occupy. That constructor will fail if the slot is not available.

Field Summary

Fields

Modifier and Type	Field	Description
protected LocalBusPort[]	bus
protected EKeySeg	chassisId
protected int	maxSlot
protected int	minSlot
protected CipUINT	portRange

Constructor Summary

Constructors

Constructor	Description
CipBackplane(EKeySeg chassisId, int minSlot, int maxSlot)	Establish the bus with an identity and fixed range of slot numbers.

Method Summary

Modifier and Type	Method	Description
protected void	checkPort(LocalBusPort p)
protected void	checkSlot(int n)
EKeySeg	getChassisId()
java.util.List<CipDevice>	getDevices()
int	getMaxSlot()
int	getMinSlot()
CipUINT	getPortRange()
LocalBusPort	getSlot(int n)
void	setupSlot(int n, LocalBusPort p)	Place a given LocalBusPort in the given slot of this bus.
void	teardownSlot(int n, LocalBusPort p)	Utility to remove a LocalBusPort from a slot when that port is shutting down.

Methods inherited from class java.lang.Object

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

Field Detail

chassisId

protected final EKeySeg chassisId

minSlot

protected final int minSlot

maxSlot

protected final int maxSlot

portRange

protected final CipUINT portRange

bus

protected final LocalBusPort[] bus

Constructor Detail

CipBackplane

public CipBackplane(EKeySeg chassisId,
                    int minSlot,
                    int maxSlot)

Establish the bus with an identity and fixed range of slot numbers.

A LocalBusPort instance will defer to its bus to supply these properties to attribute reads.

Parameters:

chassisId -

minSlot -

maxSlot -

Method Detail

getChassisId

public EKeySeg getChassisId()

getMinSlot

public int getMinSlot()

getMaxSlot

public int getMaxSlot()

getPortRange

public CipUINT getPortRange()

checkSlot

protected void checkSlot(int n)

getSlot

public LocalBusPort getSlot(int n)

getDevices

public java.util.List<CipDevice> getDevices()

checkPort

protected void checkPort(LocalBusPort p)

setupSlot

public void setupSlot(int n,
                      LocalBusPort p)

Place a given LocalBusPort in the given slot of this bus. Called only from the LocalBusPort constructor.

Parameters:

n -

p -

teardownSlot

public void teardownSlot(int n,
                         LocalBusPort p)

Utility to remove a LocalBusPort from a slot when that port is shutting down. Only called from LocalBusPort.shutdown().

Parameters:

n -

p -