Everything works OK after serious changes:

- all components, componentCfg-s and parameter providers use base classes
 - less boilerplate code, simpler access to test/procedure parameters from code
 - CreateTestParams(test), CreateProcedureParams(procedure) methods added
 - TestBenchSim class is made static, it is not inheritted by any device anymore

TestBenchFramework/BenchControl/Elde/FlowMeterTwins/FlowMeter.cs

@@ -5,26 +5,12 @@ using TBF.Boxes;
 
 namespace TBF.BenchControl.Elde.FlowMeterTwins
 {
-	public class FlowMeter : Generic.IComponent, GenericDevices.IFlowMeter
+	public class FlowMeter : ComponentBase, GenericDevices.IFlowMeter
 	{
-		/// <summary>
-		/// Info: StartMassMeasurement() and "Balance response = .., Mass = ..."
-		/// Warn: Start measurement when busy is true
-		/// </summary>
 		private static readonly ILog log = LogManager.GetLogger(typeof(FlowMeter));
-        public override string ToString()
-		{
-            return string.Format("FlowMeter: Name={0}", Name);
-        }
+        public override string ToString() { return string.Format("FlowMeterTwins({0})", Cfg.ToString(1)); }
 
-		public static void ResetStaticProperties() { }
-
-		FlowMeterCfg flowMeterCfg;
-		public Generic.IComponentCfg Cfg { get { return flowMeterCfg; } }
-
-		public string Name { get { return flowMeterCfg.Name; } }
-		
-        public IList<Entities.MeasurementCorrection> Corrections { get { return flowMeterCfg.Corrections; } }
+		readonly FlowMeterCfg flowMeterCfg;
 
         public int Idx1 { get { return 0; } }
 
@@ -32,11 +18,10 @@ namespace TBF.BenchControl.Elde.FlowMeterTwins
         public readonly TBF.BenchControl.Elde.FlowMeter.FlowMeter FlowMeter1;
         public readonly TBF.BenchControl.Elde.FlowMeter.FlowMeter FlowMeter2;
 
-        public float NominalFlow { get { return nominalFlow; } }
-        readonly float nominalFlow;
+        public float NominalFlow { get { return flowMeterCfg.NominalFlow; } }
 
         /// The nominal flowed of a pair of flow meters is reached at 4000Hz
-        public float LtrPerPulse { get { return nominalFlow / 14400.0f; } }
+        public float LtrPerPulse { get { return flowMeterCfg.NominalFlow / 14400.0f; } }
 
         /// Calculates the average of values of two flowmeters. Assumes the flow is divided evenly. 
         public float LtrPerPulseCorrected(float flow)
@@ -47,9 +32,9 @@ namespace TBF.BenchControl.Elde.FlowMeterTwins
         
 
         public FlowMeter(FlowMeterCfg cfg, IList<Generic.IComponent> components)
+            : base(cfg)
 		{
-			if (cfg == null) throw new ArgumentNullException("cfg");
-			this.flowMeterCfg = cfg;
+			flowMeterCfg = cfg;
 
 			ControlBoard = (ControlBoardDev)TbfComponents.FindComponent(cfg.ParentName, components);
 			if (ControlBoard == null) throw new Exception("Cannot find " + Name + " parent");
@@ -60,8 +45,7 @@ namespace TBF.BenchControl.Elde.FlowMeterTwins
             FlowMeter2 = (TBF.BenchControl.Elde.FlowMeter.FlowMeter)TbfComponents.FindComponent(flowMeterCfg.FlowMeter2, components);
             if (FlowMeter2 == null) throw new Exception("Cannot find FlowMeter2 component");
 
-            nominalFlow = cfg.NominalFlow;
-            ControlBoard.EtCalib[Idx1] = NominalFlow;
+            ControlBoard.EtCalib[Idx1] = flowMeterCfg.NominalFlow;
 
 			/// Prepare data for SendCalibData() control board component method
 

TestBenchFramework/BenchControl/Elde/FlowMeterTwins/FlowMeterCfg.cs

@@ -10,9 +10,9 @@ namespace TBF.BenchControl.Elde.FlowMeterTwins
         public float NominalFlow;       /// Nominal flow in m3/h at output frequency 2000 Hz
         public string FlowMeter1;       /// Name of the flow meter 1 component
         public string FlowMeter2;       /// Name of the flow meter 2 component
-										
-		/// Parameterless constructor
-		public FlowMeterCfg()
+
+		/// Private parameterless constructor invoked by all other (public) constructors
+		FlowMeterCfg()
 		{
             Name = "FlowMeterTwins";
             ParentName = "CB";

TestBenchFramework/BenchControl/Elde/FlowMeterTwins/FlowMeterFactory.cs

@@ -9,10 +9,6 @@ namespace TBF.BenchControl.Elde.FlowMeterTwins
 	public class FlowMeterFactory : IComponentFactory
 	{
 		public string ClassName { get { return "FlowMeterTwins"; } }
-		public bool HasProcedureParams { get { return false; } }
-		public bool HasTestParams { get { return false; } }
-		public IParamsProvider GetTestParams(Entities.ComponentTest testParams) { return null; }
-		public IParamsProvider GetProcedureParams(Entities.ComponentProcedure procedureParams) { return null; }
 
 		/// <summary>Max. number of components of this class in the system</summary>
 		public int MaxCount { get { return 1; } }