395 lines
9.6 KiB
C#
395 lines
9.6 KiB
C#
// 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UNPUBLISHED WORK - COPYRIGHT RAYTHEON COMPANY.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 NLog;
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using Raytheon.Common;
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using System;
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using System.IO.Ports;
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using System.Net.Sockets;
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using System.Text;
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namespace Raytheon.Instruments
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{
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/// <summary>
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/// Chiller class used to interact with the FTS chiller.
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/// </summary>
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public class ChillerFTS : IChiller, IDisposable
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{
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#region PrivateMembers
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private enum DEGREES
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{
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Celsius = 0,
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Fahrenheit = 1,
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Kevin = 2
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}
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private static object m_sync = new object();
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private const string _CARRIAGE_RETURN = "\r";
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private const string _FLOWDISABLE = "STOP";
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private const string _FLOWENABLE = "START";
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private const string _TEMPREAD = "PT?";
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private const string _TEMPREADSETPOINT = "SP?";
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private const string _TEMPSET = "SP=";
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private const string _DEGREES = "DEGREES=";
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private const string _SUCCESS = "OK";
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private const string _EXC_POINT = "!";
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private readonly string _ipAddr;
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private readonly int _port;
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private const int _READ_BUFFER_SIZE = 128;
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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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public string DetailedStatus { get; protected set; }
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public bool DisplayEnabled { get; set; }
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public bool FrontPanelEnabled { get; set; }
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public InstrumentMetadata Info { get; set; }
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public string Name { get; protected set; }
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public SelfTestResult SelfTestResult => PerformSelfTest();
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public State Status { get; set; }
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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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/// Destructor
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/// </summary>
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~ChillerFTS()
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{
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Dispose(false);
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}
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/// <summary>
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/// Open socket to the chiller
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/// </summary>
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private void ConnectEthernet()
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{
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Initialize();
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}
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public void Initialize()
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{
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//Create and open a socket to chiller cart server
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TcpClient chillerSocket = new TcpClient(_ipAddr, _port);
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_tcpStream = chillerSocket.GetStream();
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_tcpStream.ReadTimeout = _READ_TIMEOUT;
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}
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/// <summary>
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/// Dispose of the object's resources.
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/// </summary>
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/// <param name="disposing">Currently disposing.</param>
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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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//Close Connection (if available)
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_tcpStream?.Close();
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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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/// Send a command to the chiller and request a response
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/// </summary>
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/// <param name="cmd">Command to send.</param>
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/// <returns>Response from the chiller.</returns>
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private string SendMessageGetResponse(string cmd)
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{
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lock (m_sync)
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{
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//Format the command before sending
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string commandString = cmd + _CARRIAGE_RETURN;
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//convert to byte array for sending
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byte[] commandBuffer = Encoding.ASCII.GetBytes(commandString);
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//send the data
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_tcpStream.Write(commandBuffer, 0, commandBuffer.Length);
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//clear the buffer
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Array.Clear(_readBuffer, 0, _readBuffer.Length);
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//read from the response buffer
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int numBytesRead = _tcpStream.Read(_readBuffer, 0, _readBuffer.Length);
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//convert response to a string
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string rspStr = Encoding.ASCII.GetString(_readBuffer);
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//Check Response
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if (rspStr.Contains(_SUCCESS))
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{
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//Remove !
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rspStr = rspStr.Replace(_EXC_POINT, "");
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//Parse string ("/r")
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char[] delimit = { '\r' };
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string[] parsed = rspStr.Split(delimit, StringSplitOptions.RemoveEmptyEntries);
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//Return parsed message
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return parsed[1];
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}
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else
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{
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throw new Exception("SendMessageGetResponse::SendMessageGetResponse() - Command message not successful");
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}
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}
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}
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/// <summary>
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/// Change the units of measurement for the chiller.
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/// </summary>
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/// <param name="units">Celsius/Fahrenheit</param>
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private void SetDegreesUnits(DEGREES units)
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{
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lock (m_sync)
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{
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//Set the units of measurement to Celsius
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string rsp = SendMessageGetResponse(_DEGREES + units.ToString());
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}
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}
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#endregion
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/// <summary>
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/// ChillerFTS 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 ChillerFTS(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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_ipAddr = _configuration.GetConfigurationValue("ChillerFTS", "IpAddr", "");
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_port = _configuration.GetConfigurationValue("ChillerFTS", "Port", 0);
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_readBuffer = new byte[_READ_BUFFER_SIZE];
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//Connect to device
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ConnectEthernet();
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}
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/// <summary>
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/// Constructor for the chiller. It makes a socket connection to the chiller and sets the degrees to Celsius
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/// </summary>
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/// <param name="name">The name</param>
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/// <param name="ipAddress">IP Address of the equipment</param>
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/// <param name="port">Port of the equipment</param>
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public ChillerFTS(string name, string ipAddress, int port)
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{
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Name = name;
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_ipAddr = ipAddress;
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_port = port;
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_logger = LogManager.GetCurrentClassLogger();
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_readBuffer = new byte[_READ_BUFFER_SIZE];
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//Connect to device
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ConnectEthernet();
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="name"></param>
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/// <param name="comPortName"></param>
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/// <param name="delayBeforeReadMs"></param>
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/// <param name="baudRate"></param>
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/// <param name="parity"></param>
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/// <param name="dataBits"></param>
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/// <param name="stopBits"></param>
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public ChillerFTS(string name, string comPortName, uint delayBeforeReadMs, int baudRate = 115200, Parity parity = Parity.None, int dataBits = 8, StopBits stopBits = StopBits.One)
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{
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throw new NotImplementedException();
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}
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/// <summary>
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/// Stop the chiller pump.
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/// </summary>
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public void DisableFlow()
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{
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lock (m_sync)
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{
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//Send the command to stop coolant flow
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string rsp = SendMessageGetResponse(_FLOWDISABLE);
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}
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}
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/// <summary>
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/// Dispose of this objects resources
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/// </summary>
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1063:ImplementIDisposableCorrectly")]
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public void Dispose()
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{
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try
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{
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Dispose(true);
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GC.SuppressFinalize(this);
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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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/// Start the chiller pump.
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/// </summary>
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public void EnableFlow()
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{
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lock (m_sync)
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{
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//Send the command to start coolant flow
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string rsp = SendMessageGetResponse(_FLOWENABLE);
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}
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}
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/// <summary>
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/// Query the current setting for the coolant.
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/// </summary>
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/// <returns>The current coolant setting.</returns>
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public double GetCoolantSetpoint()
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{
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lock (m_sync)
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{
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//Name of the function
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const string SETPOINT_RESPONSE = "F057=";
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//Request the setpoint
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string results = SendMessageGetResponse(_TEMPREADSETPOINT);
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//Not connected. No results
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if (results == "")
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{
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return double.MaxValue;
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}
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//Remove function header
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results = results.Replace(SETPOINT_RESPONSE, "");
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return double.Parse(results);
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}
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}
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/// <summary>
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/// Query the temperature of the coolant reservoir.
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/// </summary>
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/// <returns>The temperature of the coolant.</returns>
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public double GetCoolantTemperature()
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{
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lock (m_sync)
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{
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//Name of the function
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const string TEMP_RESPONSE = "F043=";
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//Request the temperature
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string results = SendMessageGetResponse(_TEMPREAD);
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//Not connected. No results
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if (results == "")
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{
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return double.MaxValue;
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}
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//Remove function header
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results = results.Replace(TEMP_RESPONSE, "");
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return double.Parse(results);
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}
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}
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/// <summary>
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/// Set the coolant temperature to a desired setpoint.
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/// </summary>
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/// <param name="temp">The desired coolant temperature.</param>
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public void SetCoolantTemperature(double temp)
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{
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lock (m_sync)
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{
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//Set the coolant temperature
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string rsp = SendMessageGetResponse(_TEMPSET + temp.ToString());
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}
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}
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public bool ClearErrors()
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{
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throw new NotImplementedException();
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}
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public SelfTestResult PerformSelfTest()
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{
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return SelfTestResult.Unknown;
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}
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public void Reset()
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{
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Shutdown();
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Initialize();
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}
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public void Shutdown()
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{
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Dispose();
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}
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}
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}
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