diff --git a/TestBenchFramework/BenchControl/WaterMeters/iPerl/OptoTelegramRaw.cs b/TestBenchFramework/BenchControl/WaterMeters/iPerl/OptoTelegramRaw.cs
index c107ff631..c02d8ff0c 100644
--- a/TestBenchFramework/BenchControl/WaterMeters/iPerl/OptoTelegramRaw.cs
+++ b/TestBenchFramework/BenchControl/WaterMeters/iPerl/OptoTelegramRaw.cs
@@ -10,6 +10,7 @@ namespace TBF.BenchControl.WaterMeters.iPerl
 		public OptoTelegramFlags flags;
 
 		public DateTime DateTime;
+		public int Counter;
 
 		public UInt32 EmfRaw;
 		public Int16 MagneticField;
@@ -27,12 +28,12 @@ namespace TBF.BenchControl.WaterMeters.iPerl
 		{
 			if (flags == OptoTelegramFlags.OK)
 			{
-				return string.Format("{0}:{1}:{2}.{3}\t{4}:\t{5}\t{6}\t{7}\t{8}\t{9}\t{10}\t{11}",
+				return string.Format("{0}:{1}:{2}.{3}\t{4} :\t{5}\t{6}\t{7}\t{8}\t{9}\t{10}\t{11}",
 									DateTime.Hour.ToString("D2"),
 									DateTime.Minute.ToString("D2"),
 									DateTime.Second.ToString("D2"),
 									DateTime.Millisecond.ToString("D3"),
-									0,
+									Counter,
 									EmfRaw.ToString("X6"),
 									MagneticField.ToString("X4"),
 									FlowRaw.ToString("X4"),
@@ -83,9 +84,10 @@ namespace TBF.BenchControl.WaterMeters.iPerl
         /// </description>
         /// <param name="data">A complete byte array data</param>
         /// <returns>ConfigStruct or null when byte array was not complete</returns>
-		public bool UpdateFromString(string telegram)
+		public bool UpdateFromString(string telegram, int counter)
 		{
 			DateTime = DateTime.Now;
+			Counter = counter;
 
 			if ((telegram == null) || (telegram.Length < Length) ||
 				(telegram[6]  != '\t') || (telegram[11] != '\t') || (telegram[16] != '\t') ||
@@ -107,11 +109,11 @@ namespace TBF.BenchControl.WaterMeters.iPerl
 		}
 
 
-		public static OptoTelegramRaw FromString(string telegram)
+		public static OptoTelegramRaw FromString(string telegram, int counter)
 		{
 			OptoTelegramRaw opto = new OptoTelegramRaw();
 
-			if (opto.UpdateFromString(telegram))
+			if (opto.UpdateFromString(telegram, counter))
 			{
 				return opto;
 			}
diff --git a/TestBenchFramework/BenchControl/WaterMeters/iPerl/WaterMeter.cs b/TestBenchFramework/BenchControl/WaterMeters/iPerl/WaterMeter.cs
index e45c363db..6fdfda9c5 100644
--- a/TestBenchFramework/BenchControl/WaterMeters/iPerl/WaterMeter.cs
+++ b/TestBenchFramework/BenchControl/WaterMeters/iPerl/WaterMeter.cs
@@ -592,12 +592,13 @@ namespace TBF.BenchControl.WaterMeters.iPerl
 								allRcvd = allRcvd.Substring(pos + 2);
 								if (synchronized)
 								{
+									optoData[optoDataCount].Counter = optoDataCount;
 									optoData[optoDataCount++].SetFlags(OptoTelegramFlags.SyncError);
 								}
 								synchronized = true;
 							}
 							// CR+LF found and (pos >= OptoTelegramRaw.Length - 2)
-							else if (optoData[optoDataCount].UpdateFromString(allRcvd.Substring(pos - OptoTelegramRaw.Length + 2)))
+							else if (optoData[optoDataCount].UpdateFromString(allRcvd.Substring(pos - OptoTelegramRaw.Length + 2), optoDataCount))
 							{
 								OptoTelegramRreceived(optoData[optoDataCount++], synchronized2);
 								synchronized2 = synchronized;
@@ -605,6 +606,7 @@ namespace TBF.BenchControl.WaterMeters.iPerl
 							}
 							else
 							{
+								optoData[optoDataCount].Counter = optoDataCount;
 								optoData[optoDataCount++].SetFlags(OptoTelegramFlags.InvalidTelegram);
 								allRcvd = allRcvd.Substring(pos + 2);
 							}
@@ -618,7 +620,7 @@ namespace TBF.BenchControl.WaterMeters.iPerl
 								synchronized = true;
 							}
 							// CR+LF found and (pos >= OptoTelegram.Length - 2)
-							else if (toBeFlushed.UpdateFromString(allRcvd.Substring(pos - OptoTelegramRaw.Length + 2)))
+							else if (toBeFlushed.UpdateFromString(allRcvd.Substring(pos - OptoTelegramRaw.Length + 2), 0))
 							{
 								flushedDataCount++;
 								synchronized2 = synchronized;
diff --git a/TestBenchFramework/Properties/AssemblyInfo.cs b/TestBenchFramework/Properties/AssemblyInfo.cs
index 8bc83e8dc..035aedabb 100644
--- a/TestBenchFramework/Properties/AssemblyInfo.cs
+++ b/TestBenchFramework/Properties/AssemblyInfo.cs
@@ -29,5 +29,5 @@ using System.Runtime.InteropServices;
 //      Build Number
 //      Revision
 //
-[assembly: AssemblyVersion("1.6.153.1")]
-[assembly: AssemblyFileVersion("1.6.153.1")]
+[assembly: AssemblyVersion("1.6.154.1")]
+[assembly: AssemblyFileVersion("1.6.154.1")]