415adba8cf
- added events Event.TimerBusy, Event.ValvesBusy, etc. - fixed bug in SetValvesOp - preparing a virtual bench drawing on the Process screen - partly done
431 lines
14 KiB
C#
431 lines
14 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Text;
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using System.IO.Ports;
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using log4net;
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using TBF.BenchControl.Generic;
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using TBF.Boxes;
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namespace TBF.BenchControl.MettlerToledo
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{
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/// <summary>
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/// Mettler Toledo ICS4_5 Weighting terminal connected via serial interface (RS232)
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/// </summary>
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/// <note>
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/// Implemented and tested on 15.10.2013 by Milan Hanajik
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/// </note>
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public class BalanceDev : TestBenchSim, IComponent, IDevice, GenericDevices.IBalance
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{
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/// <summary>
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/// Info: StartMassMeasurement() and "Balnce response = .., Mass = ..."
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/// Warn: Start measurement when busy is true
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/// </summary>
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private static readonly ILog log = LogManager.GetLogger(typeof(BalanceDev));
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public override string ToString() { return string.Format("{0}, Mettler-Toledo Balance", balanceCfg.Name); }
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/// <summary>
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/// Enumeration of balances via static fields and methods
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/// </summary>
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static int nextBalanceIdx = 0;
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public static void ResetStaticProperties() { nextBalanceIdx = 0; }
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public static int BalancesCount { get { return nextBalanceIdx; } }
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public static BalanceDev[] Balances;
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public static float[] Masses;
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///
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protected int balanceNr; /// 0-based balance number
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protected readonly BalanceCfg balanceCfg;
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public Generic.IComponentCfg Cfg { get { return balanceCfg; } }
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protected SerialPort serialPort;
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protected StringBuilder stringBuilder;
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public string Name { get { return balanceCfg.Name; } }
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public int BalanceNr { get { return balanceNr; } }
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public float Capacity { get { return balanceCfg.Capacity; } }
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public int EmptyTimeSec { get { return balanceCfg.EmptyTimeSec; } }
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public IList<Entities.MeasurementCorrection> Corrections { get { return balanceCfg.Corrections; } }
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/// <summary>The state of the mass measurement</summary>
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public MsrmntState MsrmntState
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{
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get { return msrmntState; }
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}
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protected MsrmntState msrmntState;
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/// <summary>The mass after StartMassMeasurement() when MsrmntState == MsrmntState.Valid</summary>
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public float Mass
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{
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get { return mass; }
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}
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protected float mass;
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/// <summary>The time stamp after StartMassMeasurement() when MsrmntState == MsrmntState.Valid</summary>
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public int MsrmntTimeStamp
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{
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get { return msrmntTimeStamp; }
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}
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protected int msrmntTimeStamp;
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="balanceEntity">Balance properties</param>
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public BalanceDev(BalanceCfg cfg, IList<Generic.IComponent> components)
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{
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if (cfg == null) throw new ArgumentNullException("cfg");
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this.balanceCfg = cfg;
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balanceNr = nextBalanceIdx++;
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Masses = new float[nextBalanceIdx]; /// (re)initialize the static array of masses of all balances
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if (Balances == null || Balances.Length < nextBalanceIdx)
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{
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BalanceDev[] balancesSoFar = Balances;
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Balances = new BalanceDev[nextBalanceIdx];
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if (balancesSoFar != null) for (int i = 0; i < balancesSoFar.Length; i++) Balances[i] = balancesSoFar[i];
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Balances[nextBalanceIdx - 1] = this;
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}
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}
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public new void Initialize()
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{
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msrmntState = MsrmntState.Failed; /// Data not valid yet
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if (balanceCfg.DebugLevel == Entities.DebugMode.Simulate) return;
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stringBuilder = new StringBuilder(40);
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string comPortName = "COM" + balanceCfg.ComPortNr.ToString();
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serialPort = new SerialPort(comPortName, balanceCfg.BaudRate, balanceCfg.Parity, balanceCfg.DataBits, balanceCfg.StopBits);
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serialPort.Handshake = balanceCfg.Handshake;
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serialPort.Open();
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}
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public bool IsEmpty(float mass)
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{
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return (mass <= balanceCfg.Empty);
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}
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public void ZeroWhenStable()
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{
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if (balanceCfg.DebugLevel == Entities.DebugMode.Simulate) return;
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if (msrmntState == MsrmntState.Busy)
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{
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log.Warn("ZeroWhenStable() returns without starting zeroing the scale because measurementState == MeasurementState.Busy");
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return;
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}
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log.Info("ZeroWhenStable()");
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msrmntState = MsrmntState.Busy;
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stringBuilder.Clear();
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serialPort.Write("Z\r\n");
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}
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public void Taring()
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{
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if (balanceCfg.DebugLevel == Entities.DebugMode.Simulate) return;
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if (msrmntState == MsrmntState.Busy)
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{
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log.Warn("Taring() returns without starting taring the scale because measurementState == MeasurementState.Busy");
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return;
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}
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log.Info("Taring()");
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msrmntState = MsrmntState.Busy;
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stringBuilder.Clear();
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serialPort.Write("T\r\n");
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}
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/// <summary>
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/// Get a stable mass measurement
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/// </summary>
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public void GetStableMassMeasurement()
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{
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if (balanceCfg.DebugLevel == Entities.DebugMode.Simulate) return;
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if (msrmntState == MsrmntState.Busy)
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{
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log.Warn("GetStableMassMeasurement() returns without starting a measurement because measurementState == MeasurementState.Busy");
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return;
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}
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log.Info("GetStableMassMeasurement()");
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msrmntState = MsrmntState.Busy;
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stringBuilder.Clear();
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serialPort.Write("S\r\n");
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}
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/// <summary>
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/// Get an immediate mass measurement
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/// </summary>
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public void GetImmediateMassMeasurement()
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{
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if (balanceCfg.DebugLevel == Entities.DebugMode.Simulate) return;
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if (msrmntState == MsrmntState.Busy)
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{
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log.Warn("GetImmediateMassMeasurement() returns without starting a measurement because measurementState == MeasurementState.Busy");
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return;
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}
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log.Info("GetImmediateMassMeasurement()");
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msrmntState = MsrmntState.Busy;
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stringBuilder.Clear();
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serialPort.Write("SI\r\n");
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}
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/// <summary>Units for SetUnits() argument</summary>
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public enum Units
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{
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g,
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kg,
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t,
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lb,
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oz
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}
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/// <summary>
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/// Get the serial number
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/// </summary>
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/// <remarks>After a successful SetUnits(kg) mass is still sent in g. MH 15.10.2013</remarks>
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public void SetUnits(Units unit)
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{
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if (balanceCfg.DebugLevel == Entities.DebugMode.Simulate) return;
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if (msrmntState == MsrmntState.Busy)
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{
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log.Warn("SetUnits() returns without setting the units because measurementState == MeasurementState.Busy");
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return;
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}
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log.InfoFormat("SetUnits({0})", unit);
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msrmntState = MsrmntState.Busy;
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stringBuilder.Clear();
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switch (unit)
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{
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case Units.g: serialPort.Write("U g\r\n"); break;
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case Units.kg: serialPort.Write("U kg\r\n"); break;
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case Units.t: serialPort.Write("U t\r\n"); break;
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case Units.lb: serialPort.Write("U lb\r\n"); break;
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case Units.oz: serialPort.Write("U oz\r\n"); break;
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}
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}
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/// <summary>
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/// Parse characters received from the serial port
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/// </summary>
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public virtual void RunDeviceBefore()
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{
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if (balanceCfg.DebugLevel == Entities.DebugMode.Simulate)
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{
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mass = GetSimMass(balanceNr);
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Masses[balanceNr] = mass;
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msrmntState = MsrmntState.Valid;
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msrmntTimeStamp = StateMachine.Time;
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return;
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}
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log.Debug("RunDevice()");
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if (msrmntState != MsrmntState.Busy) return; /// No measurement in progress
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string justReceived = serialPort.ReadExisting();
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if (justReceived != null && justReceived.Length > 0)
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{
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log.Debug("RunDevice() received " + justReceived);
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stringBuilder.Append(justReceived);
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}
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string currentBuffer = stringBuilder.ToString();
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int eolPos = currentBuffer.IndexOf("\r\n");
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if (eolPos >= 0)
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{
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msrmntTimeStamp = StateMachine.Time;
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/// Get part of theh string before EOL
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string received = currentBuffer.Substring(0, eolPos);
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/// Put the rest back to the string builder
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stringBuilder.Clear();
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if (currentBuffer.Length > eolPos + 2)
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{
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stringBuilder.Append(currentBuffer.Substring(eolPos + 2));
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}
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while (true)
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{
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string tmp = received.Replace(" ", " ");
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if (tmp.Length == received.Length) break;
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received = tmp;
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}
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string[] fields = received.Split(new char[] { ' ' });
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if (fields.Length == 1 && fields[0].Equals("ZA")) /// Zero when stable
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{
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mass = 0;
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Masses[balanceNr] = mass;
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//msrmntState = MsrmntState.Valid;
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log.InfoFormat("Balance response = \"{0}<cr><lf>\"", received);
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return;
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}
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else if (fields.Length < 2)
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{
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msrmntState = MsrmntState.Failed;
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log.WarnFormat("Balance response = \"{0}<cr><lf>\", Unexpected error !!!", received);
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return;
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}
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if (fields[0].Equals("Z")) /// Zero when stable
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{
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if (fields.Length == 2 && fields[1].Equals("A"))
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{
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mass = 0;
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Masses[balanceNr] = mass;
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//msrmntState = MsrmntState.Valid;
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log.InfoFormat("Balance response = \"{0}<cr><lf>\"", received);
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return;
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}
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else
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{
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msrmntState = MsrmntState.Failed;
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log.WarnFormat("Balance response = \"{0}<cr><lf>\", error !!!", received);
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}
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}
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else if (fields[0].Equals("S")) /// Stable mass: field[1] = <mass> field[2] = "kg"
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{
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if (fields.Length >= 3 &&
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float.TryParse(fields[1],
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NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign,
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CultureInfo.InvariantCulture,
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out mass))
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{
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if (fields[2].Equals("g")) mass /= 1000.0f;
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if (fields[2].Equals("t")) mass *= 1000.0f;
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Masses[balanceNr] = mass;
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msrmntState = MsrmntState.Valid;
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log.InfoFormat("Balance response = \"{0}<cr><lf>\", Mass = {1}", received, mass);
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}
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else if (fields.Length == 2 && fields[1].Equals("-"))
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{
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mass = 0;
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Masses[balanceNr] = mass;
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msrmntState = MsrmntState.Valid;
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log.InfoFormat("Balance response = \"{0}<cr><lf>\", Mass = {1}", received, mass);
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}
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else
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{
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msrmntState = MsrmntState.Failed;
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log.WarnFormat("Balance response = \"{0}<cr><lf>\", Overload or and unexpected error !!!", received);
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bool b = float.TryParse(fields[1], NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign, CultureInfo.InvariantCulture, out mass);
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}
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}
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else if (fields[0].Equals("SD")) /// Dynamic mass: field[1] = <mass> field[2] = "kg"
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{
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if (fields.Length >= 3 &&
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float.TryParse(fields[1],
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NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign,
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CultureInfo.InvariantCulture,
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out mass))
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{
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if (fields[2].Equals("g")) mass /= 1000.0f;
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if (fields[2].Equals("t")) mass *= 1000.0f;
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Masses[balanceNr] = mass;
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msrmntState = MsrmntState.Valid;
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log.InfoFormat("Balance response = \"{0}<cr><lf>\", Mass = {1}", received, mass);
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}
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else if (fields.Length == 2 && fields[1].Equals("-"))
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{
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mass = 0;
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Masses[balanceNr] = mass;
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msrmntState = MsrmntState.Valid;
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log.InfoFormat("Balance response = \"{0}<cr><lf>\", Mass = {1}", received, mass);
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}
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else
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{
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msrmntState = MsrmntState.Failed;
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log.WarnFormat("Balance response = \"{0}<cr><lf>\", Overload or and unexpected error !!!", received);
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bool b = float.TryParse(fields[1], NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign, CultureInfo.InvariantCulture, out mass);
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}
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}
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else if (fields[0].Equals("TB")) /// Taring
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{
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if (fields.Length >= 3 &&
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float.TryParse(fields[1],
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NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign,
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CultureInfo.InvariantCulture,
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out mass))
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{
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if (fields[2].Equals("g")) mass /= 1000.0f;
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if (fields[2].Equals("t")) mass *= 1000.0f;
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msrmntState = MsrmntState.Valid;
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log.InfoFormat("Balance response = \"{0}<cr><lf>\", Tara = {1}", received, mass);
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}
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else
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{
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msrmntState = MsrmntState.Failed;
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log.WarnFormat("Balance response = \"{0}<cr><lf>\", Overload or and unexpected error !!!", received);
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}
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}
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else
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{
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msrmntState = MsrmntState.Failed;
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log.WarnFormat("Balance response = \"{0}<cr><lf>\", Unexpected error !!!", received);
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}
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}
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}
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/// <summary>Run this device</summary>
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public void RunDeviceAfter()
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{
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}
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/// <summary>Stop this device</summary>
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public void StopDevice()
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{
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if (serialPort != null) serialPort.Close();
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}
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/// <summary>
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/// Events: BalanceDone, Error
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/// </summary>
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/// <param name="result">Reference to a variable for 'tara' in kg</param>
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/// <returns>TaringOp instance reference casted to IOperaton</returns>
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public IOperation TaringOp(ref FloatBox tara)
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{
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return new TaringOp(this, ref tara);
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}
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/// <summary>
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/// Events: BalanceDone, Error
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/// </summary>
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/// <param name="result">Reference to a variable for the measured mass in kg</param>
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/// <returns>ReadMassOp instance reference casted to IOperaton</returns>
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public IOperation ReadMassOp(ref FloatBox mass)
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{
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return new ReadMassOp(this, ref mass);
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}
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/// <summary>
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/// Events: BalanceDone, Error
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/// </summary>
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/// <param name="result">Reference to a variable for the measured mass in kg</param>
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/// <param name="readingsCount">Required mass readings count (>= 3)</param>
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/// <returns>ReadMassAverageOp instance reference casted to IOperaton</returns>
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public IOperation ReadStableMassOp(ref FloatBox mass, int readingsCount)
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{
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return new ReadStableMassOp(this, ref mass, readingsCount);
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}
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}
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}
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