org.lsst.ccs.subsystem.utility

Class WattsUpDevice

java.lang.Object

org.lsst.ccs.monitor.Device

org.lsst.ccs.subsystem.utility.WattsUpDevice

All Implemented Interfaces:

org.lsst.ccs.drivers.wattsup.WattsUp.Listener, org.lsst.ccs.framework.HardwareController, org.lsst.ccs.framework.HasLifecycle

public class WattsUpDevice
extends org.lsst.ccs.monitor.Device
implements org.lsst.ccs.drivers.wattsup.WattsUp.Listener

Handles a WattsUp power meter.

Author:

Owen Saxton

Field Summary

Fields

Modifier and Type	Field and Description
static int	CHAN_FREQ Public constants.
static int	CHAN_VOLTS Public constants.
static int	CHAN_WATTS Public constants.

Fields inherited from class org.lsst.ccs.monitor.Device

chanMask, ctlChans, disabled, fullName, inited, lineMask, lineState, lineWarm, log, mon, name, online, s

Constructor Summary

Constructors

Constructor and Description
WattsUpDevice()

Method Summary

Modifier and Type	Method and Description
protected int[]	checkChannel(String name, int hwChan, String type, String subtype) Checks a channel's parameters for validity.
protected void	close() Closes the connection.
protected void	initChannel(int chan, int type, int subtype) Initializes a channel.
protected void	initDevice() Performs basic initialization.
protected void	initialize() Performs full initialization.
void	processData(double[] data) Receives data periodically from the WattsUp? meter.
protected double	readChannel(int chan, int type) Reads a channel.
void	setClosed() Changes the WattsUp? meter open state.
void	setPowered(boolean on) Changes the WattsUp? meter powered state.

Methods inherited from class org.lsst.ccs.monitor.Device

addChannel, addLine, checkHardware, checkHwLine, checkLine, checkOnline, checkTimeout, configure, disable, dropChannel, enable, getFullName, getName, getOutputLines, init, initChannel, initSensors, isHwLineSet, isLineSet, isOnline, isTimeout, readChannel, readChannelGroup, readChannelNow, readSensors, setHwLine, setLine, setLineWarm, setOnline, setOutputLines, testOnline

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.HardwareController

checkStarted, checkStopped

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

build, postBuild, postInit, postShutdown, postStart, shutdown, start

Field Detail

CHAN_WATTS

public static final int CHAN_WATTS

Public constants.

See Also:

Constant Field Values

CHAN_VOLTS

public static final int CHAN_VOLTS

Public constants.

See Also:

Constant Field Values

CHAN_FREQ

public static final int CHAN_FREQ

Public constants.

See Also:

Constant Field Values

Constructor Detail

WattsUpDevice

public WattsUpDevice()

Method Detail

initDevice

protected void initDevice()

Performs basic initialization.

Overrides:

initDevice in class org.lsst.ccs.monitor.Device

initialize

protected void initialize()

Performs full initialization.

Specified by:

initialize in class org.lsst.ccs.monitor.Device

close

protected void close()

Closes the connection. This is a no-op since the driver closes the connection automatically when a connection problem is detected.

Specified by:

close in class org.lsst.ccs.monitor.Device

checkChannel

protected int[] checkChannel(String name,
                             int hwChan,
                             String type,
                             String subtype)
                      throws Exception

Checks a channel's parameters for validity.

Overrides:

checkChannel in class org.lsst.ccs.monitor.Device

Parameters:

name - The channel name

hwChan - The hardware channel number

type - The channel type string

subtype - The channel subtype string

Returns:

A two-element array containing the encoded type [0] and subtype [1] values.

Throws:

Exception - if any errors found in the parameters.

initChannel

protected void initChannel(int chan,
                           int type,
                           int subtype)

Initializes a channel.

Overrides:

initChannel in class org.lsst.ccs.monitor.Device

Parameters:

chan - The hardware channel number

type - The channel type string

subtype - The channel subtype string

readChannel

protected double readChannel(int chan,
                             int type)

Reads a channel.

Overrides:

readChannel in class org.lsst.ccs.monitor.Device

Parameters:

chan - The hardware channel number.

type - The encoded channel type returned by checkChannel.

Returns:

The value read from the channel

setPowered

public void setPowered(boolean on)

Changes the WattsUp? meter powered state. Performs meter setup upon power-on.

Specified by:

setPowered in interface org.lsst.ccs.drivers.wattsup.WattsUp.Listener

Parameters:

on - Whether the meter is powered on or not

setClosed

public void setClosed()

Changes the WattsUp? meter open state.

Specified by:

setClosed in interface org.lsst.ccs.drivers.wattsup.WattsUp.Listener

processData

public void processData(double[] data)

Receives data periodically from the WattsUp? meter.

Specified by:

processData in interface org.lsst.ccs.drivers.wattsup.WattsUp.Listener

Parameters:

data - The array of data from the meter.