diff --git a/TBF/BenchControl/Dummy/Diverter/Component.cs b/TBF/BenchControl/Dummy/Diverter/Component.cs
index 3598a2fdd..6794d0911 100644
--- a/TBF/BenchControl/Dummy/Diverter/Component.cs
+++ b/TBF/BenchControl/Dummy/Diverter/Component.cs
@@ -27,6 +27,7 @@ namespace TBF.BenchControl.Dummy.Diverter
             log.Debug(this.ToString());
         }
 
+        public int DiverterNr { get { return 0; } }
 		public bool State { get { return false; } }
         public int ThresholdGate { get { return 50; } }
         public int ThresholdLo { get { return 10; } }
diff --git a/TBF/BenchControl/Elde/ControlBoardDev.cs b/TBF/BenchControl/Elde/ControlBoardDev.cs
index 0a069e20e..e4f4b712a 100644
--- a/TBF/BenchControl/Elde/ControlBoardDev.cs
+++ b/TBF/BenchControl/Elde/ControlBoardDev.cs
@@ -58,7 +58,7 @@ namespace TBF.BenchControl.Elde
 		public uint BeginState(int wmNr0)                 { return controlCom.BeginState(wmNr0); }
 		public double ReferenceFlow                 { get { return controlCom.ReferenceFlow; } }
 		public float RValvePosition(int rvNr1)            { return controlCom.RValvePosition(rvNr1); }
-		public float DivSamples(int ms)                   { return controlCom.DivSamples(ms); }
+        public float DivSamples(int time, int divIx0)     { return controlCom.DivSamples(time, divIx0); }     /// Time unit is 2 ms
 		public int ScopeSamples(int i, int j, int k)      { return controlCom.ScopeSamples(i, j, k); }
 		public ulong DigitalInputs                  { get { return controlCom.DigitalInputs; } }
 		public float AnalogInput(int adcNr0)              { return controlCom.AnalogInput(adcNr0); }
diff --git a/TBF/BenchControl/Elde/ControlComSim.cs b/TBF/BenchControl/Elde/ControlComSim.cs
index cdc54867c..d7985a34b 100644
--- a/TBF/BenchControl/Elde/ControlComSim.cs
+++ b/TBF/BenchControl/Elde/ControlComSim.cs
@@ -65,7 +65,7 @@ namespace TBF.BenchControl.Elde
 		public float ReferenceFlow { get { return referenceFlow; } }
 
 		public float RValvePosition(int rvNr1) { return 0; }
-		public float DivSamples(int ms) { return 0; }
+		public float DivSamples(int ms, int divIx0) { return 0; }
 		public int ScopeSamples(int i, int j, int k) { return 0; }
 		public ulong DigitalInputs { get { return 0; } }
 		public float AnalogInput(int adcNr0) { return 0; }
diff --git a/TBF/BenchControl/Elde/ControlComWrap.cs b/TBF/BenchControl/Elde/ControlComWrap.cs
index 1e7dd0628..b2d0e3534 100644
--- a/TBF/BenchControl/Elde/ControlComWrap.cs
+++ b/TBF/BenchControl/Elde/ControlComWrap.cs
@@ -84,7 +84,7 @@ namespace TBF.BenchControl.Elde
             //return ctrlBrdComponent.RValvePosition[rvNr1 - 1];
             return ctrlBrdComponent.Analogy[rvNr1 - 1];             /// Fixes bug: RValvePosition returns 0 all the time
         }
-		public float DivSamples(int ms) { return ctrlBrdComponent.DIVSamples[ms, 0]; }
+        public float DivSamples(int time, int divIx0) { return ctrlBrdComponent.DIVSamples[time, divIx0]; } /// Time unit is 2 ms
 		public int ScopeSamples(int i, int j, int k) { return ctrlBrdComponent.ScopeSamples[i, j, k]; }
 		public ulong DigitalInputs { get { return (ulong)ctrlBrdComponent.Vstupy; } }
 		public float AnalogInput(int adcNr0) { return ctrlBrdComponent.Analogy[adcNr0]; }
diff --git a/TBF/BenchControl/Elde/IControlCom.cs b/TBF/BenchControl/Elde/IControlCom.cs
index ff306071b..54d850b4f 100644
--- a/TBF/BenchControl/Elde/IControlCom.cs
+++ b/TBF/BenchControl/Elde/IControlCom.cs
@@ -26,7 +26,7 @@ namespace TBF.BenchControl.Elde
 		uint BeginState(int wmNr0);
 		float ReferenceFlow { get; }
 		float RValvePosition(int rvNr1);
-		float DivSamples(int ms);
+		float DivSamples(int time, int divIx0); /// time unit is 2 ms
 		int ScopeSamples(int i, int j, int k);
 		ulong DigitalInputs { get; }
 		float AnalogInput(int adcNr0);
diff --git a/TBF/BenchControl/Elde/ReadDiverterTransitionOp.cs b/TBF/BenchControl/Elde/ReadDiverterTransitionOp.cs
index ab3726d20..77467e3d4 100644
--- a/TBF/BenchControl/Elde/ReadDiverterTransitionOp.cs
+++ b/TBF/BenchControl/Elde/ReadDiverterTransitionOp.cs
@@ -10,7 +10,10 @@ namespace TBF.BenchControl.Elde
 	public class ReadDiverterTransitionOp : IOperation
 	{
         private static readonly ILog log = LogManager.GetLogger(typeof(ReadDiverterTransitionOp));
-        public override string ToString() { return string.Format("ReadDiverterTransitionOp()"); }
+        public override string ToString()
+        {
+            return string.Format("ReadDiverterTransitionOp(.,{0},{1},{2},...)", div.Name, runsCountWhenSendingCmd, runsCountWhenReadingDiv);
+        }
 
         const int SamplesCount = 240;       /// Should be less then or equal to 256
         float[] samples;                                            
@@ -68,16 +71,16 @@ namespace TBF.BenchControl.Elde
         {
             counter = 0;
 
-            if (plotter == null)
+            if (runsCountWhenSendingCmd == 0 && div.DiverterNr > 0)
             {
-                if (div is TBF.BenchControl.Elde.Diverter.Diverter && runsCountWhenSendingCmd == 0)
-                {
-                    SendCommand();
-                }
+                SendCommand();
+                log.DebugFormat("Start() ... Sending a command to read diverter {0}", div.Name);
             }
-            else
+
+            if (plotter != null)
             {
                 plotter.Start(batchNr, testName, repetition);
+                log.DebugFormat("Start() ... plotter.Start({0}, {1}, {2})", batchNr, testName, repetition);
             }
         }
 
@@ -89,29 +92,31 @@ namespace TBF.BenchControl.Elde
 		{
             counter++;
 
-            if (div is TBF.BenchControl.Elde.Diverter.Diverter)
+            if (counter == runsCountWhenSendingCmd && div.DiverterNr > 0)
             {
-                if (counter == runsCountWhenSendingCmd)
+                SendCommand();
+                log.DebugFormat("Run() ... Sending a command to read diverter {0}", div.Name);
+            }
+            else if (counter == runsCountWhenReadingDiv && div.DiverterNr > 0)
+            {
+                if (plotter == null)
                 {
-                    if (plotter == null) SendCommand();
+                    ReadDiverterTransitionTimes();
+                    log.DebugFormat("Run() ... Reading diverter {0} transition times: {1}s", div.Name, transitionTimeSec.Val);
                 }
-                else if (counter == runsCountWhenReadingDiv)
+                else
                 {
-                    if (plotter == null)
+                    log.DebugFormat("Run() ... Reading diverter {0} samples", div.Name);
+                    for (int i = 0; i < SamplesCount; i++)
                     {
-                        ReadDiverterTransitionTimes();
+                        float oneSample = controlBoard.DivSamples(i, div.DiverterNr - 1);
+                        samples[i] = oneSample;
+                        plotter.Update(oneSample);
                     }
-                    else
-                    {
-                        for (int i = 0; i < SamplesCount; i++)
-                        {
-                            float oneSample = controlBoard.DivSamples(i);
-                            samples[i] = oneSample;
-                            plotter.Update(oneSample);
-                        }
+                    plotter.Stop();
 
-                        CalculateDiverterTransitionTimes();
-                    }
+                    log.DebugFormat("Run() ... Calculating diverter {0} transition times: {1}s", div.Name, transitionTimeSec.Val);
+                    CalculateDiverterTransitionTimes();
                 }
             }
 
@@ -121,7 +126,7 @@ namespace TBF.BenchControl.Elde
 		/// <summary>Stop this operation</summary>
 		public void Stop()
 		{
-            if (plotter != null) plotter.Stop();
+            log.DebugFormat("Stop()");
         }
 
         void SendCommand()
diff --git a/TBF/BenchControl/GenericDevices/IDiverter.cs b/TBF/BenchControl/GenericDevices/IDiverter.cs
index 7c1e6ff72..1eacfd490 100644
--- a/TBF/BenchControl/GenericDevices/IDiverter.cs
+++ b/TBF/BenchControl/GenericDevices/IDiverter.cs
@@ -7,6 +7,12 @@ namespace TBF.BenchControl.GenericDevices
 {
 	public interface IDiverter : IComponent
 	{
+        /// <summary>
+        /// 1-based diverter number in case of Elde control board connected diverter (>= 1)
+        /// 0 = dummy diverter
+        /// </summary>
+        int DiverterNr { get; }
+
 		/// <summary>
 		/// Diverter state: true = to tank, false = bypass tank
 		/// </summary>