org.lsst.ccs.subsystem.refrig

Class Compressor

java.lang.Object

org.lsst.ccs.subsystem.refrig.Compressor

All Implemented Interfaces:

org.lsst.ccs.framework.HasLifecycle

Direct Known Subclasses:

ColdCompressor, CryoCompressor

public class Compressor
extends Object
implements org.lsst.ccs.framework.HasLifecycle

Controls a refrigeration compressor.

Author:

Owen Saxton

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Compressor.SwCondData
static interface	Compressor.SwitchDevice

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<String,org.lsst.ccs.monitor.Channel>	channelMap
protected String	cmprPowerChan
protected static String	COMP_LIMITS Constants.
protected Compressor.SwCondData[]	condData
protected org.lsst.ccs.monitor.Channel	discPress
protected String	discPressChan
protected org.lsst.ccs.monitor.Channel	discTemp
protected String	discTempChan
protected boolean	gotCommand
protected CompLimits.LimitData[]	limitData
protected CompMaq20Device	maq20Devc
protected CompPlutoDevice	plutoDevc
protected CompState	state
protected boolean	stateChanged
protected String	suctTempChan
protected int[]	switchChannels
protected Compressor.SwitchDevice[]	switchDevices

Constructor Summary

Constructors

Constructor and Description
Compressor(CompState state) Constructor.

Method Summary

Modifier and Type	Method and Description
protected boolean	areEqual(double value1, double value2) Compares two numbers for equality, accounting for possible NaNs.
void	clearIgnoreVacuumBad() Command to clear ignoring a bad vacuum.
int	getIndex() Gets the compressor index.
CompState	getState() Gets the compressor state.
List<String>	getSwitchNames() Command to get the valid switch names.
void	init() Registers the possible alerts.
void	postInit() Initializes the compressor control.
void	postStart() Starts the compressor control.
void	resetLatches() Command to reset the latches.
void	setIgnoreVacuumBad(double mins) Command to set to ignore a bad vacuum.
void	setIndex(int index) Sets the compressor index.
void	setPlateTempLow(boolean on) Sets whether the plate temperature is too low.
protected void	setSwitch(int sw, boolean on) Turns a switch on or off..
void	setSwitchOn(String swName, boolean on) Command to turn a (named) switch on or off..
void	setVacuumBad(boolean on) Sets whether the vacuum is bad.
protected boolean	updateState() Updates the compressor state.
boolean	updateSystem() Updates the compressor system.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.lsst.ccs.framework.HasLifecycle

build, postBuild, postShutdown, shutdown, start

Field Detail

COMP_LIMITS

protected static final String COMP_LIMITS

Constants.

See Also:

Constant Field Values

plutoDevc

@LookupField(strategy=CHILDREN)
protected CompPlutoDevice plutoDevc

maq20Devc

@LookupField(strategy=CHILDREN)
protected CompMaq20Device maq20Devc

channelMap

@LookupField(strategy=DESCENDANTS)
protected final Map<String,org.lsst.ccs.monitor.Channel> channelMap

discPressChan

protected String discPressChan

discTempChan

protected String discTempChan

suctTempChan

protected String suctTempChan

cmprPowerChan

protected String cmprPowerChan

state

protected final CompState state

switchDevices

protected final Compressor.SwitchDevice[] switchDevices

switchChannels

protected final int[] switchChannels

discPress

protected org.lsst.ccs.monitor.Channel discPress

discTemp

protected org.lsst.ccs.monitor.Channel discTemp

gotCommand

protected boolean gotCommand

stateChanged

protected boolean stateChanged

limitData

protected CompLimits.LimitData[] limitData

condData

protected final Compressor.SwCondData[] condData

Constructor Detail

Compressor

public Compressor(CompState state)

Constructor.

Parameters:

state - The compressor state object

Method Detail

init

public void init()

Registers the possible alerts.

Specified by:

init in interface org.lsst.ccs.framework.HasLifecycle

postInit

public void postInit()

Initializes the compressor control.

Specified by:

postInit in interface org.lsst.ccs.framework.HasLifecycle

postStart

public void postStart()

Starts the compressor control.

Specified by:

postStart in interface org.lsst.ccs.framework.HasLifecycle

setIndex

public void setIndex(int index)

Sets the compressor index.

Parameters:

index - The index value

getIndex

public int getIndex()

Gets the compressor index.

Returns:

The index value

getSwitchNames

@Command(type=QUERY,
         description="Get the valid switch names",
         level=0)
public List<String> getSwitchNames()

Command to get the valid switch names.

Returns:

The index value

setSwitchOn

@Command(type=ACTION,
         description="Set a compressor\'s switch state")
public void setSwitchOn(@Argument(description="Switch name")
                                                                                                       String swName,
                                                                                                       @Argument(description="Whether to turn on")
                                                                                                       boolean on)
                                                                                                throws RefrigException

Command to turn a (named) switch on or off..

Parameters:

swName - The switch name

on - Whether to turn on

Throws:

RefrigException

resetLatches

@Command(type=ACTION,
         description="Reset a compressor\'s latches")
public void resetLatches()

Command to reset the latches.

setIgnoreVacuumBad

@Command(type=ACTION,
         description="Set to ignore a bad vacuum")
public void setIgnoreVacuumBad(@Argument(description="Duration of ignore state (minutes)",defaultValue="10")
                                                                                                        double mins)

Command to set to ignore a bad vacuum. Sometimes a "spin test" is done to briefly check that a compressor can be started. This could not happen if the vacuum subsystem is detecting that the vacuum is not good enough to run the compressors. This command exists to allow a bad vacuum condition to be ignored for a short period (default 10 minutes).

Parameters:

mins - The time (minutes) the ignore state is to last

clearIgnoreVacuumBad

@Command(type=ACTION,
         description="Clear ignoring a bad vacuum")
public void clearIgnoreVacuumBad()

Command to clear ignoring a bad vacuum.

updateSystem

public boolean updateSystem()

Updates the compressor system. This should be called at regular (short) intervals to maintain the correct state

Returns:

Whether any state value changed

getState

public CompState getState()

Gets the compressor state.

Returns:

The compressor state

setPlateTempLow

public void setPlateTempLow(boolean on)

Sets whether the plate temperature is too low.

Parameters:

on - Whether low condition is set

setVacuumBad

public void setVacuumBad(boolean on)

Sets whether the vacuum is bad.

Parameters:

on - Whether low condition is set

updateState

protected boolean updateState()

Updates the compressor state. This should be called at regular (short) intervals to maintain the correct state

Returns:

Whether any value changed

setSwitch

protected void setSwitch(int sw,
                         boolean on)
                  throws RefrigException

Turns a switch on or off..

Parameters:

sw - The switch ID

on - Whether to turn on

Throws:

RefrigException

areEqual

protected boolean areEqual(double value1,
                           double value2)

Compares two numbers for equality, accounting for possible NaNs.

Parameters:

value1 - First value

value2 - Second value

Returns:

Whether the values are equal