diff --git a/TestBenchFramework/BenchControl/TestMethods/iPerlAdjustment/iPerlAdjustmentSeq.cs b/TestBenchFramework/BenchControl/TestMethods/iPerlAdjustment/iPerlAdjustmentSeq.cs
index b00d24b5b..63c755d57 100644
--- a/TestBenchFramework/BenchControl/TestMethods/iPerlAdjustment/iPerlAdjustmentSeq.cs
+++ b/TestBenchFramework/BenchControl/TestMethods/iPerlAdjustment/iPerlAdjustmentSeq.cs
@@ -22,7 +22,7 @@ namespace TBF.BenchControl.TestMethods.iPerlAdjustment
 		/// 
 		void OpenWMErrorsForm(iPerlAdjustmentSeq myRef)
 		{
-			myRef.modelessDlg = new iPerlCommunicationForm(Program.WMsCount);
+			myRef.modelessDlg = new iPerlCommunicationForm(WaterMeters);
 			modelessDlg.Show();
 		}
 
diff --git a/TestBenchFramework/BenchControl/TestMethods/iPerlAdjustment/iPerlCommunicationForm.cs b/TestBenchFramework/BenchControl/TestMethods/iPerlAdjustment/iPerlCommunicationForm.cs
index b1847f42e..484631da5 100644
--- a/TestBenchFramework/BenchControl/TestMethods/iPerlAdjustment/iPerlCommunicationForm.cs
+++ b/TestBenchFramework/BenchControl/TestMethods/iPerlAdjustment/iPerlCommunicationForm.cs
@@ -2,10 +2,14 @@
 /// Copyright (c) 2013-2015 Sensus Metering Systems
 ///
 using System;
+using System.Collections.Generic;
 using System.Drawing;
+using System.Runtime.InteropServices;
+using System.Threading;
 using System.Windows.Forms;
 using log4net;
 using TBF.Resources;
+using TBF.BenchControl.WaterMeters.iPerl;
 
 namespace TBF.BenchControl.TestMethods.iPerlAdjustment
 {
@@ -13,10 +17,63 @@ namespace TBF.BenchControl.TestMethods.iPerlAdjustment
     {
 		private static readonly ILog log = LogManager.GetLogger(typeof(iPerlCommunicationForm));
 
+
+        [DllImport("libRfid.dll", EntryPoint = "getDllVersion")]
+        public static extern unsafe int getDllVersion();
+
+        [DllImport("libRfid.dll", EntryPoint = "openPort")]
+        static extern unsafe int openPort(uint comPort);
+
+        [DllImport("libRfid.dll", EntryPoint = "closePort")]
+        static extern unsafe int closePort();
+
+        [DllImport("libRfid.dll", EntryPoint = "readRequestPort")]
+        static extern unsafe int readRequestPort(MessageID messageId, int offset, int lenght, byte* ptr, int timeout_ms);
+
+        [DllImport("libRfid.dll", EntryPoint = "writeRequestPort")]
+        static extern unsafe int writeRequestPort(MessageID messageId, int offset, int lenght, byte* ptr, int timeout_ms);
+
+		/// <summary>
+		/// Wrapper function with safe interface adn unsafe body
+		/// </summary>
+		/// <returns>Value returned by readRequestPort(...)</returns>
+		public unsafe int ReadRequestPort(MessageID messageID, int offset, int lenght, out byte[] buffer, int timeout)
+		{
+			byte[] buf = new byte[1000];
+			int retv;
+
+			fixed (byte* pBuf = buf)
+			{
+				retv = readRequestPort(messageID, offset, lenght, pBuf, timeout);
+
+				buffer = new byte[lenght];
+				for (int i = 0; i < lenght; i++) buffer[i] = buf[i];
+			}
+
+			return retv;
+		}
+
+		/// <summary>
+		/// Wrapper function with safe interface adn unsafe body
+		/// </summary>
+		/// <returns>Value returned by writeRequestPort(...)</returns>
+		public unsafe int WriteRequestPort(MessageID messageID, int offset, int lenght, byte[] buffer, int timeout)
+		{
+			int retv;
+			fixed (byte* pBuf = buffer)
+			{
+				retv = writeRequestPort(messageID, offset, lenght, pBuf, timeout);
+			}
+			return retv;
+		}
+
+
+
 		// Set to 'true' when the form closes
 		public bool Completed { get { return completed; } }
 		bool completed;
 
+
 		/// <summary> Number of text boxes for serial numbers </summary>
         public readonly int WaterMetersCount;
 
@@ -28,6 +85,10 @@ namespace TBF.BenchControl.TestMethods.iPerlAdjustment
 
 		Label[] labels;
 		TextBox[] errors;
+        IList<WaterMeter> WaterMeters;
+
+        
+        Modbus.QuidoRS.QuidoRS quido;
 
 
 		/// <summary> Parameterless constructor for 3 watermeters </summary>
@@ -90,14 +151,25 @@ namespace TBF.BenchControl.TestMethods.iPerlAdjustment
         /// Constructor
         /// </summary>
         /// <param name="waterMetersCount">Number of text boxes for serial numbers</param>
-        public iPerlCommunicationForm(int waterMetersCount)
+        public iPerlCommunicationForm(IList<GenericDevices.IWaterMeter> waterMeters)
 			: this()
         {
-            this.WaterMetersCount = waterMetersCount;
+            this.WaterMetersCount = waterMeters.Count;
+            this.WaterMeters = new List<WaterMeters.iPerl.WaterMeter>();
+            foreach (var wm in waterMeters) this.WaterMeters.Add(wm as WaterMeters.iPerl.WaterMeter);
 
-			ShuffleTextBoxes(waterMetersCount, Program.LineSize);
+			ShuffleTextBoxes(this.WaterMetersCount, Program.LineSize);
 
-			disabled = new bool[waterMetersCount];
+            disabled = new bool[this.WaterMetersCount];
+
+            foreach (var comp in StateMachine.Components)
+            {
+                if (comp is Modbus.QuidoRS.QuidoRS)
+                {
+                    quido = comp as Modbus.QuidoRS.QuidoRS;
+                    break;
+	        	}
+		    }
 		}
 
 
@@ -250,17 +322,97 @@ namespace TBF.BenchControl.TestMethods.iPerlAdjustment
 
         private void readConfigBtn_Click(object sender, EventArgs e)
         {
+            byte[] data;
 
+            int i = 0;
+
+            for (int group = 1; group <= 10; group++)
+            {
+                if (quido != null)
+                {
+                    quido.SetOutputs((ushort)(16 - group));
+                    Thread.Sleep(200);
+                }
+
+                foreach (var wm in WaterMeters)
+                {
+                    if (wm.DebugLevel == Entities.DebugMode.Normal && wm.Group == group)
+                    {
+                        int r1 = openPort((uint)wm.RfidComPortNr);
+                        int r2 = ReadRequestPort(MessageID.Configuration, 0, ConfigStruct.Length, out data, 1000);
+                        int r3 = closePort();
+
+                        if (r1==0  && r2==0 && r3==0)
+                        {
+                            errors[i++].Text = ConfigStruct.FromByteArray(data).ToString();
+                        }
+                        else
+                        {
+                            errors[i++].Text = "Cannot read configuration";
+                        }
+                    }
+                    else
+                        i++;
+                }
+            }
         }
 
         private void toTestMdBtn_Click(object sender, EventArgs e)
         {
+            byte[] data = new byte[1];
+            data[0] = (byte)7;
 
+            int i = 0;
+
+            for (int group = 1; group <= 10; group++)
+			{
+                if (quido != null)
+                {
+                    quido.SetOutputs((ushort)(16 - group));
+                    Thread.Sleep(200);
+                }
+ 
+                foreach (var wm in WaterMeters)
+    			{
+                    if (wm.DebugLevel == Entities.DebugMode.Normal && wm.Group == group)
+                    {
+                        int r1 = openPort((uint)wm.RfidComPortNr);
+                        int r2 = WriteRequestPort(MessageID.Command, 0, 1, data, 1000);
+                        int r3 = closePort();
+                    }
+                    else
+                        i++;
+                }
+            }
         }
 
         private void toActiveMdBtn_Click(object sender, EventArgs e)
         {
+            byte[] data = new byte[1];
+            data[0] = (byte)6;
 
+            int i = 0;
+
+            for (int group = 1; group <= 10; group++)
+            {
+                if (quido != null)
+                {
+                    quido.SetOutputs((ushort)(16 - group));
+                    Thread.Sleep(200);
+                }
+
+                foreach (var wm in WaterMeters)
+                {
+                    if (wm.DebugLevel == Entities.DebugMode.Normal && wm.Group == group)
+                    {
+                        int r1 = openPort((uint)wm.RfidComPortNr);
+                        int r2 = WriteRequestPort(MessageID.Command, 0, 1, data, 1000);
+                        int r3 = closePort();
+                    }
+                    else
+                        i++;
+                }
+            }
         }
 	}
 }
diff --git a/TestBenchFramework/BenchControl/WaterMeters/iPerl/Enums.cs b/TestBenchFramework/BenchControl/WaterMeters/iPerl/Enums.cs
new file mode 100644
index 000000000..1c9517207
--- /dev/null
+++ b/TestBenchFramework/BenchControl/WaterMeters/iPerl/Enums.cs
@@ -0,0 +1,94 @@
+///
+/// Copyright (c) 2015 Sensus Metering Systems
+///
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace TBF.BenchControl.WaterMeters.iPerl
+{
+	public enum MessageID
+	{
+		Calibration = 0x00,				/// Access to stCalibration
+		Configuration = 0x01,			/// Access to stConfig
+		Status = 0x02,					/// Access to stStaus, read only
+		Power = 0x03,					/// Access to stPower, containing power info from both processors
+		LCD = 0x04,						/// Access to stLCD
+		EventData = 0x05,				/// NOT USED
+		IntervalData = 0x06,			/// NOT USED
+		Diagnostics = 0x07,				/// Access tostMetroDiagArray, read onl
+		MetrologyMemory = 0x08,			/// Memory block access, read only
+		Error_LongAck = 0x09,			/// Error message
+		Command = 0x0A,					/// Command to execute, with no arguments
+		Parameterizing = 0x0B,			/// Parameterizing message is used in MCI-SPI interface only
+		Error_ShortAck = 0x0C,			/// Short acknowledge message is used in MCI-SPI interface only
+		ChanelAlive = 0x0D,				/// Channel alive message is used in MCI-SPI interface only
+		RadioPassthrough = 0x0E,		/// RFID <-> Metrology <-> Radio passthrough message
+		ASICRegisterReadTest = 0x0F,	/// ASIC Register read test
+		IMIDebugMessagesAccess = 0x10,	/// IMI debug messages read test
+		ProductionChecksumsRead = 0x11, /// Production checksum read: Calibration (1 byte), Configuration (2 bytes), spare (4 bytes)
+		HardwareParametersTest = 0x12,	/// Hardware Parameters Testing: User configurable fixed field drive time (1 byte)
+		/// <summary>
+		/// Notes:
+		///  1.	Short Ack message contains 1-byte error code and all the fields (Offset, Payload length, payload and password) will not be present.
+		///  2.	Channel Alive message does not contain the fields (Offset, Payload length, payload and password).
+		///  3.	Except the above two special messages, rest all the messages in the above table will follow the message format mentioned in sections 3.1 and 3.2.
+		/// </summary>
+		Count							/// Number of MessageID-s
+	}
+
+	public enum MeterType : byte
+	{
+		DN15 = 0,
+		CoaxManifold = 1,
+		DN20 = 2,
+		DN25 = 3,
+		DN26 = 4,						/// DN25*
+		DN32 = 5,
+		DN40 = 6,
+		Count							/// Number of meter types
+	}
+
+	public enum VolumeUnits : byte
+	{
+		m3        = 0,
+		UK_gallon = 1,
+		US_gallon = 2,
+		Count							/// Number of volume units
+	}
+
+	public enum FlowArrow : byte
+	{
+		No    = 0,
+		Right = 1,
+		Left  = 2,
+		Count							/// Number of flow arrows
+	}
+
+	public enum MeterSealed : byte
+	{
+		InProduction = 0x00,
+		OutOfProduction = 0xA5,
+		Sealed = 0x5A,
+	}
+
+	public enum MeterState : byte
+	{
+		None      = 0,
+		Idle      = 1,
+		Active    = 2,
+		Test      = 3,
+		EndOfLife = 4,
+		Count							/// Number of meter states
+	}
+
+	public enum FlowState : byte
+	{
+		No = 0,
+		Reverse = 1,
+		Forward = 2,
+		EmptyPipe = 3,
+		Count							/// Number of flow states
+	}
+}
diff --git a/TestBenchFramework/BenchControl/WaterMeters/iPerl/WaterMeter.cs b/TestBenchFramework/BenchControl/WaterMeters/iPerl/WaterMeter.cs
index a4c68bcce..0d25a03b9 100644
--- a/TestBenchFramework/BenchControl/WaterMeters/iPerl/WaterMeter.cs
+++ b/TestBenchFramework/BenchControl/WaterMeters/iPerl/WaterMeter.cs
@@ -19,9 +19,10 @@ namespace TBF.BenchControl.WaterMeters.iPerl
 		private static readonly ILog log = LogManager.GetLogger(typeof(WaterMeter));
 		public override string ToString() { return string.Format("iPerl({0})", Cfg.ToString(1)); }
 
-
 		readonly WaterMeterCfg iPerlCfg;
 
+        public int RfidComPortNr { get { return iPerlCfg.RfidComPortNr; } }
+        public int Group { get { return iPerlCfg.Group; } }
 
 		public float PulsesPerLtr { get { return iPerlCfg.ProcParams.PulsesPerLtr; } }
 
@@ -71,7 +72,17 @@ namespace TBF.BenchControl.WaterMeters.iPerl
 		Boxes.IntBox refPulses;
 
 
-		public WaterMeter()
+
+        ///
+        /// Opto serial port and worker thread related private variables
+        ///
+        private SerialPort optoSerialPort;
+        private bool optoPortOpen;
+        private Thread workerThread;
+        private bool stopWorkerThread;
+        
+        
+        public WaterMeter()
 		{
 		}
 
@@ -85,16 +96,34 @@ namespace TBF.BenchControl.WaterMeters.iPerl
 
         public void Initialize()
         {
-            optoSerialPort = new SerialPort(string.Format("COM{0}", iPerlCfg.OptoComPortNr),
-                                                9600, Parity.None, 8, StopBits.One);
-            optoSerialPort.Handshake = Handshake.None;
-            optoSerialPort.Open();
-            optoPortOpen = true;
+            if (DebugLevel == Entities.DebugMode.Normal)
+            {
+                optoSerialPort = new SerialPort(string.Format("COM{0}", iPerlCfg.OptoComPortNr),
+                                                    9600, Parity.None, 8, StopBits.One);
+                optoSerialPort.Handshake = Handshake.None;
+                optoSerialPort.Open();
+                optoPortOpen = true;
 
-            stopWorkerThread = false;
-            workerThread = new Thread(Worker);
-            workerThread.Start();
-            return;
+                stopWorkerThread = false;
+                workerThread = new Thread(Worker);
+                workerThread.Start();
+            }
+        }
+
+        public void RunDeviceBefore()
+        {
+        }
+
+        public void RunDeviceAfter()
+		{
+		}
+
+        public void StopDevice()
+        {
+            stopWorkerThread = true;
+            workerThread.Join(2000);
+            optoSerialPort.Close();
+            optoPortOpen = false;
         }
 
 		/// <summary>
@@ -162,15 +191,6 @@ namespace TBF.BenchControl.WaterMeters.iPerl
 		}
 
 
-        ///
-        /// Measurement serial port and worker thread related private variables
-        ///
-        private SerialPort optoSerialPort;
-        private bool optoPortOpen;
-        private Thread workerThread;
-        private bool stopWorkerThread;
-
-
         void Worker()
         {
             while (!stopWorkerThread)
@@ -187,7 +207,7 @@ namespace TBF.BenchControl.WaterMeters.iPerl
                 }
                 else
                 {
-                    OnOptoReceived(this, new OptoReceivedEventArgs("."));
+                    //OnOptoReceived(this, new OptoReceivedEventArgs("."));
                 }
             }
         }
diff --git a/TestBenchFramework/TBF.csproj b/TestBenchFramework/TBF.csproj
index 6657ba1e8..f51b3eb22 100644
--- a/TestBenchFramework/TBF.csproj
+++ b/TestBenchFramework/TBF.csproj
@@ -42,6 +42,7 @@
     <DefineConstants>TRACE;DEBUG;MUNICH</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -51,6 +52,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <PlatformTarget>AnyCPU</PlatformTarget>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
     <DebugSymbols>true</DebugSymbols>
@@ -302,8 +304,12 @@
     <Compile Include="BenchControl\TestMethods\iPerlAdjustment\iPerlCommunicationForm.designer.cs">
       <DependentUpon>iPerlCommunicationForm.cs</DependentUpon>
     </Compile>
+    <Compile Include="BenchControl\WaterMeters\iPerl\CalibrationStruct.cs" />
+    <Compile Include="BenchControl\WaterMeters\iPerl\ConfigStruct.cs" />
+    <Compile Include="BenchControl\WaterMeters\iPerl\Enums.cs" />
     <Compile Include="BenchControl\WaterMeters\iPerl\OptoReceivedEventArgs.cs" />
     <Compile Include="BenchControl\WaterMeters\iPerl\ProcParams.cs" />
+    <Compile Include="BenchControl\WaterMeters\iPerl\StatusStruct.cs" />
     <Compile Include="BenchControl\WaterMeters\iPerl\WaterMeter.cs" />
     <Compile Include="BenchControl\WaterMeters\iPerl\WaterMeterCfg.cs" />
     <Compile Include="BenchControl\WaterMeters\iPerl\WaterMeterCfgCtrl.cs">