70 lines
1.7 KiB
C#
70 lines
1.7 KiB
C#
using System;
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using log4net;
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using TBF.Boxes;
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namespace TBF.BenchControl.MettlerToledo
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{
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public class ReadMassOp : IOperation
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{
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private static readonly ILog log = LogManager.GetLogger(typeof(ReadMassOp));
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public override string ToString() { return string.Format("ReadMassOp(.,.)"); }
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bool done;
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/// Set by the constructor
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BalanceDev balanceDev;
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FloatBox result;
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/// <summary>
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/// Events: BalanceDone, Error
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/// </summary>
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/// <param name="balanceDev">Balance device instance</param>
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/// <param name="requiredReadingsCount">Required mass readings count (>= 3)</param>
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/// <param name="result">Reference to the measured mass in kg</param>
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public ReadMassOp(BalanceDev balanceDev, ref FloatBox result)
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{
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if (balanceDev == null) throw new ArgumentNullException("balanceDev");
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this.balanceDev = balanceDev;
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this.result = result;
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log.Debug(this.ToString());
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}
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/// <summary>Start this operation</summary>
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public void Start()
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{
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done = false;
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balanceDev.GetImmediateMassMeasurement();
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}
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/// <summary>Run this operation</summary>
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/// <returns>
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/// Event.None
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/// Event.BalanceDone
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/// Event.Error . . . . . Current.Tick == null
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/// </returns>
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public Event Run()
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{
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if (done) return Event.BalanceDone; /// Mass has already been read
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if (balanceDev.MsrmntState == MsrmntState.Busy) return Event.None;
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if (balanceDev.MsrmntState == MsrmntState.Valid)
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{
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result.Val = balanceDev.Mass;
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done = true;
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return Event.BalanceDone; /// Mass read OK
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}
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balanceDev.GetImmediateMassMeasurement(); /// Failed -> repeat the measurement
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return Event.None;
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}
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/// <summary>Stop this operation</summary>
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public void Stop()
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{
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}
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}
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}
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