/* -*- tab-width: 4 -*-
*
* Electric(tm) VLSI Design System
*
* File: Agilent6031A.java
* Written by Tom O'Neill and Nathaniel Pinckney, Sun Microsystems.
*
* Copyright (c) 2008 Sun Microsystems and Static Free Software
*
* Electric(tm) is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Electric(tm) is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Electric(tm); see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, Mass 02111-1307, USA.
*/
package com.sun.electric.tool.simulation.test;
/**
* This class extends the generic equipment class to include methods specific to
* the Agilent 6031A 20V/120A single-channel power supply.
* <P>
* Rather than using this class directly, you should use {@link Agilent6031AChannel}
*/
public class Agilent6031A extends Equipment {
String s = new String("null");
/** Resolution in Volts */
private static final float VOLTAGE_RESOLUTION = 0.005f;
public static final int FOLDBACK_OFF = 0;
public static final int FOLDBACK_CV = 1;
public static final int FOLDBACK_CC = 2;
/** Creates a new instance of Agilent6031A */
protected Agilent6031A(String newName) {
super(newName);
}
/**
* Returns string indicating state of one of the power supply
*
* @return String indicating power supply state
*/
public String getState() {
String result;
result = "Set: " + getVoltageSetpoint() + " V, "
+ getCurrentSetpoint() + " A\n";
result += "Got " + readVoltage() + " V, " + readCurrent()
+ " A";
return result;
}
/**
* Returns voltage resolution
*
* @return Voltage resoluton
*/
public static float getVoltageResolution() {
return VOLTAGE_RESOLUTION;
}
/**
* Measures the voltage of the power supply
*
*/
public float readVoltage() {
write("VOUT?");
String s[] = read(200).split("\\s+");
return Float.parseFloat(s[1]);
}
/**
* Reads back the voltage setpoint from the power supply
*
*/
public float getVoltageSetpoint() {
logOther("Reading voltage setpoint on Agilent 6031A");
write("VSET?");
String s[] = read(200).split("\\s+");
return Float.parseFloat(s[1]);
}
/** Sets the voltage of the power supply */
public void setVoltage(float voltage) {
write("VSET " + voltage);
}
/** Reads back the current from the power supply */
public float readCurrent() {
write("IOUT?");
String s[] = read(200).split("\\s+");
return Float.parseFloat(s[1]);
}
/**
* Reads back the current setpoint from the power supply
*
*/
public float getCurrentSetpoint() {
write("ISET?");
String s[] = read(200).split("\\s+");
return Float.parseFloat(s[1]);
}
/**
* Changes the current setpoint to <code>setAmps</code> Amps.
*
*/
public void setCurrent(float setAmps) {
write("ISET " + setAmps);
}
/**
* Gets the foldback mode or turns it off.
*
*/
public int getFoldback() {
write("FOLD?");
String s[] = read(200).split("\\s+");
return Integer.parseInt(s[1]);
}
/**
* Sets the foldback mode or turns it off.
*
* @param mode
* Foldback mode to set. Can be <code>Agilent6031A.FOLDBACK_CV</code>,
* <code>FOLDBACK_CC</code>, or <code>FOLDBACK_OFF</code>.
* @throws IllegalArgumentException
* if mode not in 0..2
*/
public void setFoldback(int mode) {
if (mode < 0 || mode > 2) {
throw new IllegalArgumentException("Fallback " + mode
+ " outside of allowed range 0..2");
}
write("FOLD " + mode);
}
public float getOverVoltageProtection() {
write("OVP?");
String s[] = read(200).split("\\s+");
return Float.parseFloat(s[1]);
}
public static void main(String args[]) {
Infrastructure.gpibControllers = new int[] { 3 };
Agilent6031A supply = new Agilent6031A("A6031A");
// supply.setVoltage(3, 1.8f);
//System.out.println("current " + supply.readCurrent(3));
//System.out.println(supply.getState());
supply.interactive();
}//end main
}