Big changes
This commit is contained in:
Duc
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// UNCLASSIFIED
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/*-------------------------------------------------------------------------
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RAYTHEON PROPRIETARY: THIS DOCUMENT CONTAINS DATA OR INFORMATION
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PROPRIETARY TO RAYTHEON COMPANY AND IS RESTRICTED TO USE ONLY BY PERSONS
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AUTHORIZED BY RAYTHEON COMPANY IN WRITING TO USE IT. DISCLOSURE TO
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UNAUTHORIZED PERSONS WOULD LIKELY CAUSE SUBSTANTIAL COMPETITIVE HARM TO
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RAYTHEON COMPANY'S BUSINESS POSITION. NEITHER SAID DOCUMENT NOR ITS
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CONTENTS SHALL BE FURNISHED OR DISCLOSED TO OR COPIED OR USED BY PERSONS
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OUTSIDE RAYTHEON COMPANY WITHOUT THE EXPRESS WRITTEN APPROVAL OF RAYTHEON
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COMPANY.
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THIS PROPRIETARY NOTICE IS NOT APPLICABLE IF DELIVERED TO THE U.S.
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GOVERNMENT.
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UNPUBLISHED WORK - COPYRIGHT RAYTHEON COMPANY.
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-------------------------------------------------------------------------*/
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using Raytheon.Instruments;
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using System;
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using System.Net.Sockets;
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using System.Text;
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using Raytheon.Instruments.Dmm;
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using Raytheon.Units;
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using System.Threading;
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using NLog;
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using Raytheon.Common;
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namespace Raytheon.Instruments
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{
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/// <summary>
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/// A keysight implementation of the DMM interface
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/// </summary>
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public class DMMKeysightScpi : IDmm
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{
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#region PrivateMemberVariables
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private const string READ_ERROR_STATUS_CMD = "SYST:ERR?";
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private const string _SELFTESTCMD = "*TST?";
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private const string _RESETCMD = "*RST";
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private const string _MEASUREFRES = "MEAS:FRES? "; //Resistance 4-wire
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private const string _MEASURERES = "MEAS:RES? "; //Resistance 2-wire
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private const string _MEASUREDCVOLT = "MEAS:VOLT:DC? ";
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private const string _MEASUREACVOLT = "MEAS:VOLT:AC? ";
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//Frequency
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private const string _FREQ_SETUP1 = "CONF:FREQ ";
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private const string _FREQ_SETUP2 = "SENS:FREQ:VOLT:RANGE:AUTO OFF";
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private const string _FREQ_SETUP3 = "FREQ:VOLT:RANG ";
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private const string _FREQ_SETUP4 = "SAMPLE:COUNT ";
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private const string _MEASUREFREQ = "READ? ";
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private const string _AUTO = "AUTO";
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private const string _DEFAULT = "DEF";
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private const int _PORT = 5025;
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private const int _READ_TIMEOUT = 5000;
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private byte[] _readBuffer;
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private NetworkStream _tcpStream;
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private string _name;
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private readonly string _address;
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private MeasurementFunction _lastType;
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private double _lastRange;
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private double _lastResolution;
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private State _state;
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private SelfTestResult _selfTestResult;
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/// <summary>
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/// NLog logger
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/// </summary>
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private readonly ILogger _logger;
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/// <summary>
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/// Raytheon configuration
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/// </summary>
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private readonly IConfigurationManager _configurationManager;
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private readonly IConfiguration _configuration;
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#endregion
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#region PrivateFunctions
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/// <summary>
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/// Dispose of this objects resources
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/// </summary>
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/// <param name="disposing"></param>
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2213:DisposableFieldsShouldBeDisposed", MessageId = "_34461A")]
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protected virtual void Dispose(bool disposing)
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{
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try
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{
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if (disposing)
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{
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if (_state == State.Ready)
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{
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Reset();
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_tcpStream.Dispose();
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_state = State.Uninitialized;
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}
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}
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}
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catch (Exception)
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{
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try
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{
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//ErrorLogger.Instance().Write(err.Message + "\r\n" + err.StackTrace);
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}
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catch (Exception)
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{
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//Do not rethrow. Exception from error logger that has already been garbage collected
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}
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}
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}
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/// <summary>
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/// Reads frequency from the dmm
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/// </summary>
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/// <param name="range">The range to use on the DMM</param>
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/// <param name="resolution">The resolution to use on the DMM</param>
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/// <param name="voltRange">The voltage range for the measurement</param>
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/// <param name="numReads">The number of reads to make</param>
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/// <returns>The frequency or average of frequencies read</returns>
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private double ReadFrequency(double range, double resolution, double voltRange, double numReads)
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{
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//Setup the frequency measurement
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string command = _FREQ_SETUP1;
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if (range == -1)
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{
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command += _DEFAULT + ", " + _DEFAULT;
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}
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else
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{
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command += range + ", " + resolution;
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}
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command += ";:" + _FREQ_SETUP2 + ";:" + _FREQ_SETUP3 + voltRange;
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//want to read frequency more than once
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if (numReads > 1)
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{
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command += ";:" + _FREQ_SETUP4 + "\n";
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}
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else
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{
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command += "\n";
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}
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// send the command
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IOWrite(command);
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//read the frequency
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command = _MEASUREFREQ + "\n";
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string rspStr = IOQuery(command);
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double frequency = 0.0;
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if (rspStr.IndexOf(',') > -1)
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{
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frequency = GetFrequencyAvg(rspStr);
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}
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else
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{
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frequency = Util.ConvertStringToDouble(rspStr);
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}
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return frequency;
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}
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/// <summary>
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/// Reads resistance
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/// </summary>
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/// <param name="range">The range to use on the DMM</param>
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/// <param name="resolution">The resolution to use on the DMM</param>\
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/// <param name="dmmResistanceType"></param>
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/// <returns>The resistance</returns>
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private double ReadResistance(double range, double resolution, MeasurementFunction resistanceType)
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{
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string command = "";
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if (resistanceType == MeasurementFunction.FourWireResistance)
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{
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command = _MEASUREFRES;
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}
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else if (resistanceType == MeasurementFunction.TwoWireResistance)
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{
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command = _MEASURERES;
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}
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else
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{
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throw new Exception("only 4 or 2 write resistance is acceptable for param type: " + resistanceType.ToString());
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}
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if (range == -1)
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{
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command += _AUTO + ", " + _DEFAULT;
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}
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else
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{
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command += range + ", " + resolution;
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}
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command += "\n";
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string rspStr = IOQuery(command);
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double resistance = Util.ConvertStringToDouble(rspStr);
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return resistance;
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}
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/// <summary>
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/// Reads voltage
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/// </summary>
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/// <param name="range">The range to use on the DMM</param>
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/// <param name="resolution">The resolution to use on the DMM</param>
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/// <returns></returns>
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private double ReadVoltage(double range, double resolution, MeasurementFunction voltageType)
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{
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string command = "";
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if (voltageType == MeasurementFunction.ACVolts)
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{
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command = _MEASUREACVOLT;
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}
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else if (voltageType == MeasurementFunction.DCVolts)
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{
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command = _MEASUREDCVOLT;
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}
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else
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{
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throw new Exception("only ac or dc volt is acceptable for param type: " + voltageType.ToString());
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}
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if (range == -1)
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{
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command += _AUTO + ", " + _DEFAULT;
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}
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else
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{
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command += range + ", " + resolution;
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}
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command += "\n";
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string rspStr = IOQuery(command);
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double dcVoltage = Util.ConvertStringToDouble(rspStr);
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return dcVoltage;
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}
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/// <summary>
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/// Convert scpi data to string
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/// </summary>
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/// <param name="data"></param>
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/// <returns></returns>
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private string ConvertToString(ref byte[] data)
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{
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string rsp = System.Text.Encoding.ASCII.GetString(data);
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return rsp;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="numbers"></param>
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/// <returns></returns>
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private double GetFrequencyAvg(string numbers)
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{
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string[] numArr = numbers.Split(',');
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double retVal = 0;
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foreach (string val in numArr)
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{
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retVal += Util.ConvertStringToDouble(val);
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}
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retVal = retVal / numArr.Length;
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return retVal;
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}
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/// <summary>
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/// Get the error code.
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/// </summary>
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/// <returns>The error code (number).</returns>
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private int GetErrorCode()
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{
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// not calling IOQuery() here so IOQuery() can call GetErrorCode() after each query
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string command = READ_ERROR_STATUS_CMD + "\n";
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// convert to a byte array
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byte[] commandBuffer = Encoding.ASCII.GetBytes(command);
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// send the data out
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_tcpStream.Write(commandBuffer, 0, commandBuffer.Length);
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// clear our buffer
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Array.Clear(_readBuffer, 0, _readBuffer.Length);
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// read the response
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int numBytesRead = _tcpStream.Read(_readBuffer, 0, _readBuffer.Length);
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// convert to a string
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string rspStr = ConvertToString(ref _readBuffer);
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// parse the response
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string[] tokens = rspStr.Split(',');
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int ret = Util.ConvertStringToInt32(tokens[0]);
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return ret;
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}
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/// <summary>
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/// Send a command to the DMM and get the response
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/// </summary>
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/// <param name="commandString">The command to send</param>
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/// <returns>The DMM response</returns>
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private string IOQuery(string commandString)
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{
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// send the command
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IOWrite(commandString, false);
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// clear our buffer
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Array.Clear(_readBuffer, 0, _readBuffer.Length);
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// read from the response
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int numBytesRead = _tcpStream.Read(_readBuffer, 0, _readBuffer.Length);
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if (numBytesRead == 0)
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{
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throw new Exception($"DMMKeysightScpi:IOQuery() - Number of bytes read from stream was {numBytesRead}");
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}
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// convert response to a string
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string rspStr = ConvertToString(ref _readBuffer);
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// check for errors
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int err = GetErrorCode();
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if (err != 0)
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{
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throw new Exception("DMMKeysightScpi:IOQuery() - returned error code: " + err.ToString());
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}
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return rspStr;
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}
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/// <summary>
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/// Sends a SCPI Command to the instrument.
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/// </summary>
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/// <param name="commandString">The SCPI Command to be sent to the instrument.</param>
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private void IOWrite(string commandString, bool checkForError = true)
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{
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// convert to a byte array
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byte[] commandBuffer = Encoding.ASCII.GetBytes(commandString);
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// send the data out
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_tcpStream.Write(commandBuffer, 0, commandBuffer.Length);
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if (checkForError)
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{
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// check for errors
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int err = GetErrorCode();
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if (err != 0)
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{
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throw new Exception("DMMKeysightScpi:IOWrite() - returned error code: " + err.ToString());
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}
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}
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}
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#endregion
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#region PublicFunctions
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/// <summary>
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/// DMMKeysightScpi factory constructor
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/// </summary>
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/// <param name="deviceName"></param>
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/// <param name="configurationManager"></param>
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public DMMKeysightScpi(string deviceName, IConfigurationManager configurationManager, ILogger logger)
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{
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Name = deviceName;
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_logger = logger;
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_configurationManager = configurationManager;
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_configuration = _configurationManager.GetConfiguration(Name);
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_address = _configuration.GetConfigurationValue("DMMKeysightScpi", "Address", "");
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_lastType = 0;
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_lastRange = 0;
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_lastResolution = 0;
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const int READ_BUFFER_SIZE = 512;
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_readBuffer = new byte[READ_BUFFER_SIZE];
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// created in initialize
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_tcpStream = null;
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_state = State.Uninitialized;
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_selfTestResult = SelfTestResult.Unknown;
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}
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/// <summary>
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/// The constructor which opens the handle to the DMM and performs a self test on the instrument
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/// </summary>
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/// <param name="name">The name of this dmm</param>
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/// <param name="address">The address of the DMM</param>
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public DMMKeysightScpi(string name, string address)
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{
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const int READ_BUFFER_SIZE = 512;
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_name = name;
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_address = address;
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_lastType = 0;
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_lastRange = 0;
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_lastResolution = 0;
|
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_readBuffer = new byte[READ_BUFFER_SIZE];
|
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|
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_logger = LogManager.GetCurrentClassLogger();
|
||||
|
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// created in initialize
|
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_tcpStream = null;
|
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_state = State.Uninitialized;
|
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_selfTestResult = SelfTestResult.Unknown;
|
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}
|
||||
|
||||
/// <summary>
|
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/// The Finalizer which will release resources if required
|
||||
/// </summary>
|
||||
~DMMKeysightScpi()
|
||||
{
|
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Dispose(false);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
/// <returns></returns>
|
||||
public bool ClearErrors()
|
||||
{
|
||||
throw new NotImplementedException();
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
/// <param name="type"></param>
|
||||
/// <param name="range"></param>
|
||||
/// <param name="resolution"></param>
|
||||
public void ConfigureCurrentMeasurement(MeasurementFunction type, Current range, Current resolution)
|
||||
{
|
||||
throw new NotImplementedException();
|
||||
/*_lastType = type;
|
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_lastRange = range.Amps;
|
||||
_lastResolution = resolution.Amps;*/
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
/// <param name="type"></param>
|
||||
/// <param name="range"></param>
|
||||
/// <param name="resolution"></param>
|
||||
public void ConfigureVoltageMeasurement(MeasurementFunction type, Voltage range, Voltage resolution)
|
||||
{
|
||||
if (type != MeasurementFunction.DCVolts && type != MeasurementFunction.ACVolts)
|
||||
{
|
||||
throw new Exception("only ac or dc volt is acceptable for param type: " + type.ToString());
|
||||
}
|
||||
|
||||
_lastType = type;
|
||||
_lastRange = range.Volts;
|
||||
_lastResolution = resolution.Volts;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
/// <param name="type"></param>
|
||||
/// <param name="range"></param>
|
||||
/// <param name="resolution"></param>
|
||||
public void ConfigureResistanceMeasurement(MeasurementFunction type, Resistance range, Resistance resolution)
|
||||
{
|
||||
if (type != MeasurementFunction.FourWireResistance && type != MeasurementFunction.TwoWireResistance)
|
||||
{
|
||||
throw new Exception("only FourWireResistance or TwoWireResistance is acceptable for param type: " + _lastType.ToString());
|
||||
}
|
||||
|
||||
_lastType = type;
|
||||
_lastRange = range.Ohms;
|
||||
_lastResolution = resolution.Ohms;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
/// <param name="type"></param>
|
||||
/// <param name="range"></param>
|
||||
/// <param name="resolution"></param>
|
||||
public void ConfigureFrequencyMeasurement(MeasurementFunction type, Frequency range, Frequency resolution)
|
||||
{
|
||||
if (type != MeasurementFunction.Frequency)
|
||||
{
|
||||
throw new Exception("only frequency is acceptable for param type: " + _lastType.ToString());
|
||||
}
|
||||
|
||||
_lastType = type;
|
||||
_lastRange = range.Hertz;
|
||||
_lastResolution = resolution.Hertz;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Dispose of this objects resources
|
||||
/// </summary>
|
||||
public void Dispose()
|
||||
{
|
||||
try
|
||||
{
|
||||
Dispose(true);
|
||||
|
||||
GC.SuppressFinalize(this);
|
||||
}
|
||||
catch (Exception)
|
||||
{
|
||||
try
|
||||
{
|
||||
//ErrorLogger.Instance().Write(err.Message + "\r\n" + err.StackTrace);
|
||||
}
|
||||
catch (Exception)
|
||||
{
|
||||
//Do not rethrow. Exception from error logger that has already been garbage collected
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
public string DetailedStatus
|
||||
{
|
||||
get
|
||||
{
|
||||
return "This is a Keysight Dmm";
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
public bool DisplayEnabled
|
||||
{
|
||||
get
|
||||
{
|
||||
throw new NotImplementedException();
|
||||
}
|
||||
|
||||
set
|
||||
{
|
||||
throw new NotImplementedException();
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
public bool FrontPanelEnabled
|
||||
{
|
||||
get
|
||||
{
|
||||
throw new NotImplementedException();
|
||||
}
|
||||
|
||||
set
|
||||
{
|
||||
throw new NotImplementedException();
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
public InstrumentMetadata Info
|
||||
{
|
||||
get
|
||||
{
|
||||
throw new NotImplementedException();
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
public void Initialize()
|
||||
{
|
||||
if (_state == State.Uninitialized)
|
||||
{
|
||||
TcpClient dmmSocketConn = new TcpClient(_address, _PORT);
|
||||
_tcpStream = dmmSocketConn.GetStream();
|
||||
_tcpStream.ReadTimeout = _READ_TIMEOUT;
|
||||
_selfTestResult = PerformSelfTest();
|
||||
_state = State.Ready;
|
||||
}
|
||||
else
|
||||
{
|
||||
throw new Exception("expected the state to be Uninitialized, state was: " + _state.ToString());
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
public MeasurementFunction MeasurementType
|
||||
{
|
||||
get
|
||||
{
|
||||
throw new NotImplementedException();
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
/// <param name="timeout"></param>
|
||||
/// <returns></returns>
|
||||
public Current MeasureCurrent(int timeout)
|
||||
{
|
||||
throw new NotImplementedException();
|
||||
|
||||
/*
|
||||
if (_lastType != MeasurementFunction.DCVolts && _lastType != MeasurementFunction.ACVolts)
|
||||
{
|
||||
throw new Exception("only ac or dc volt is acceptable for param type: " + type.ToString());
|
||||
}
|
||||
|
||||
return Current.FromAmps(ReadCurrent();*/
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
/// <param name="timeout"></param>
|
||||
/// <returns></returns>
|
||||
public Frequency MeasureFrequency(int timeout)
|
||||
{
|
||||
if (_lastType != MeasurementFunction.Frequency)
|
||||
{
|
||||
throw new Exception("only frequency is acceptable for param type: " + _lastType.ToString());
|
||||
}
|
||||
|
||||
return Frequency.FromHertz(ReadFrequency(_lastRange, _lastResolution, _lastRange, 1));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
/// <param name="timeout"></param>
|
||||
/// <returns></returns>
|
||||
public Resistance MeasureResistance(int timeout)
|
||||
{
|
||||
if (_lastType != MeasurementFunction.FourWireResistance && _lastType != MeasurementFunction.TwoWireResistance)
|
||||
{
|
||||
throw new Exception("only FourWireResistance or TwoWireResistance is acceptable for param type: " + _lastType.ToString());
|
||||
}
|
||||
|
||||
return Resistance.FromOhms(ReadResistance(_lastRange, _lastResolution, _lastType));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
/// <param name="timeout"></param>
|
||||
/// <returns></returns>
|
||||
public Voltage MeasureVoltage(int timeout)
|
||||
{
|
||||
if (_lastType != MeasurementFunction.DCVolts && _lastType != MeasurementFunction.ACVolts)
|
||||
{
|
||||
throw new Exception("only ac or dc volt is acceptable for param type: " + _lastType.ToString());
|
||||
}
|
||||
|
||||
return Voltage.FromVolts(ReadVoltage(_lastRange, _lastResolution, _lastType));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
public string Name
|
||||
{
|
||||
get { return _name; }
|
||||
set { _name = value; }
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
/// <returns></returns>
|
||||
public SelfTestResult PerformSelfTest()
|
||||
{
|
||||
try
|
||||
{
|
||||
// change the timeout to account for the long self test
|
||||
_tcpStream.ReadTimeout = 30000;
|
||||
|
||||
// send the command and get the response
|
||||
string command = _SELFTESTCMD + "\n";
|
||||
string rspStr = IOQuery(command);
|
||||
|
||||
// parse the response
|
||||
string[] tokens = rspStr.Split('\n');
|
||||
|
||||
int rsp = Util.ConvertStringToInt32(tokens[0].Replace("+", "").Split(',')[0]);
|
||||
|
||||
|
||||
if (rsp != 0)
|
||||
{
|
||||
string errorMsg = "returned an error: " + rspStr;
|
||||
_selfTestResult = SelfTestResult.Fail;
|
||||
throw new Exception(errorMsg);
|
||||
}
|
||||
_selfTestResult = SelfTestResult.Pass;
|
||||
}
|
||||
catch (Exception)
|
||||
{
|
||||
throw;
|
||||
}
|
||||
finally
|
||||
{
|
||||
// restore the timeout
|
||||
_tcpStream.ReadTimeout = _READ_TIMEOUT;
|
||||
}
|
||||
|
||||
return SelfTestResult;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
public void Reset()
|
||||
{
|
||||
IOWrite(_RESETCMD + "\n");
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
public SelfTestResult SelfTestResult
|
||||
{
|
||||
get
|
||||
{
|
||||
return _selfTestResult;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
public State Status
|
||||
{
|
||||
get
|
||||
{
|
||||
return _state;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
///
|
||||
/// </summary>
|
||||
public void Shutdown()
|
||||
{
|
||||
if (_state == State.Ready)
|
||||
{
|
||||
Reset();
|
||||
|
||||
_tcpStream.Dispose();
|
||||
|
||||
_state = State.Uninitialized;
|
||||
}
|
||||
}
|
||||
|
||||
#endregion
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user