diff --git a/Configuration/ZT.cfg b/Configuration/ZT.cfg
index a6d4926..c54d661 100644
--- a/Configuration/ZT.cfg
+++ b/Configuration/ZT.cfg
@@ -48,7 +48,6 @@ SONDE_LASER_EXT_1=ttyS1
 #Changer cette valeur à OUI, NON ou AUTO pour sélectionner la communication Modbus avec la CC.
 # OUI: force l'utilisation de la communication Modbus avec la CC.
 # NON: force la désactivation du lien Modbus avec la CC (utilisation des TC/TK discrètes)
-# AUTO: détection du lien Modbus au démarrage de la ZT et autoconfiguration de l'interface.
 UTILISER_MODBUS_CC=OUI
 #Adresse modbus de la ZT
 MODBUS_CC_DEVID=1
@@ -57,6 +56,14 @@ MODBUS_CC_PORT=502
 #Interface Ethernet
 MODBUS_CC_ETH_IF=eth2
 
+#----------------------------------
+#Paramètres de communication Modbus avec le SEI (Serveur NetTrac).
+#Adresse modbus de la ZT
+MODBUS_SEI_DEVID=1
+#Port Modbus/TCP
+MODBUS_SEI_PORT=502
+
+
 #----------------------------------
 #Changer cette valeur à OUI ou NON pour activer le
 SIMULATEUR=OUI
diff --git a/Configuration/ZTSettings.ztc b/Configuration/ZTSettings.ztc
index 080b8f7..b160524 100644
Binary files a/Configuration/ZTSettings.ztc and b/Configuration/ZTSettings.ztc differ
diff --git a/ZT.pro b/ZT.pro
index f5bf4f1..34ed711 100644
--- a/ZT.pro
+++ b/ZT.pro
@@ -111,14 +111,14 @@ SOURCES += \
     sources/TKTransportInterface.cpp \
     sources/DiscreteTKTransport.cpp \
     sources/Modbus/ModbusBackend.cpp \
-    sources/Modbus/ModbusMaster.cpp \
     sources/Modbus/ModbusRepository.cpp \
     sources/Modbus/ModbusCCMgr.cpp \
     sources/Modbus/ModbusTKTransport.cpp \
     sources/Stations/DuCollege.cpp \
     sources/GuiElements/EthConnWidget.cpp \
     sources/GuiElements/ModbusSettingsPage.cpp \
-    sources/Modbus/NetworkCfgMgr.cpp
+    sources/Modbus/NetworkCfgMgr.cpp \
+    sources/Modbus/ModbusSEIMgr.cpp
 
 HEADERS  += \
     sources/MainPanel.h \
@@ -228,7 +228,6 @@ HEADERS  += \
     sources/TKTransportInterface.h \
     sources/DiscreteTKTransport.h \
     sources/Modbus/ModbusBackend.h \
-    sources/Modbus/ModbusMaster.h \
     sources/Modbus/ModbusRepository.h \
     sources/Modbus/ModbusCCMgr.h \
     sources/Modbus/ModbusCCDefs.h \
@@ -236,7 +235,9 @@ HEADERS  += \
     sources/Stations/DuCollege.h \
     sources/GuiElements/EthConnWidget.h \
     sources/GuiElements/ModbusSettingsPage.h \
-    sources/Modbus/NetworkCfgMgr.h
+    sources/Modbus/NetworkCfgMgr.h \
+    sources/Modbus/ModbusSEIMgr.h \
+    sources/Modbus/ModbusSEIDefs.h
 
 #QMAKE_LIBDIR += ./ExtLib
 #QT += network
diff --git a/sources/Modbus/ModbusSEIDefs.h b/sources/Modbus/ModbusSEIDefs.h
new file mode 100644
index 0000000..de2f3cf
--- /dev/null
+++ b/sources/Modbus/ModbusSEIDefs.h
@@ -0,0 +1,150 @@
+#ifndef MODBUSSEIDEFS_H
+#define MODBUSSEIDEFS_H
+
+
+#define SEI_MODBUS_ZT_DATA_BASE_REG  2000
+#define SEI_MODBUS_ZT_TABLE_DATA_SIZE 28
+
+#define SEI_MODBUS_SEI_DATA_BASE_REG  2037
+#define SEI_MODBUS_SEI_TABLE_DATA_SIZE 2
+
+#define SEI_MODBUS_ZT_WATCHDOG_REG  2027
+#define SEI_MODBUS_SEI_WATCHDOG_REG 2038
+
+#define SEI_MODBUS_SEI_ZT1_ALARM_RESET_MASK 0X0001
+#define SEI_MODBUS_SEI_ZT2_ALARM_RESET_MASK 0X0002
+
+
+////Flags definitions for HR2000
+//#define SEI_ZT1_PP_INT_FLAG_MASK_1    0x0001
+//#define SEI_ZT1_PP_INT_FLAG_MASK_2    0x0002
+//#define SEI_ZT1_PP_INT_FLAG_MASK_3    0x0004
+//#define SEI_ZT1_PP_INT_FLAG_MASK_4    0x0008
+//#define SEI_ZT1_PP_EXT_FLAG_MASK_1    0x0010
+//#define SEI_ZT1_PP_EXT_FLAG_MASK_2    0x0020
+//#define SEI_ZT1_PP_EXT_FLAG_MASK_3    0x0040
+//#define SEI_ZT1_PP_EXT_FLAG_MASK_4    0x0080
+//#define SEI_ZT1_PG_FLAG_MASK_1        0x0100
+//#define SEI_ZT1_PG_FLAG_MASK_2        0x0200
+//#define SEI_ZT1_PG_FLAG_MASK_3        0x0400
+//#define SEI_ZT1_PG_FLAG_MASK_4        0x0800
+//#define SEI_ZT1_FN_FLAG_MASK_1        0x1000
+//#define SEI_ZT1_FN_FLAG_MASK_2        0x2000
+//#define SEI_ZT1_FN_FLAG_MASK_3        0x4000
+//#define SEI_ZT1_FN_FLAG_MASK_4        0x8000
+
+////Flags definitions for HR2017
+//#define SEI_ZT2_PP_INT_FLAG_MASK_1    0x0001
+//#define SEI_ZT2_PP_INT_FLAG_MASK_2    0x0002
+//#define SEI_ZT2_PP_INT_FLAG_MASK_3    0x0004
+//#define SEI_ZT2_PP_INT_FLAG_MASK_4    0x0008
+//#define SEI_ZT2_PP_EXT_FLAG_MASK_1    0x0010
+//#define SEI_ZT2_PP_EXT_FLAG_MASK_2    0x0020
+//#define SEI_ZT2_PP_EXT_FLAG_MASK_3    0x0040
+//#define SEI_ZT2_PP_EXT_FLAG_MASK_4    0x0080
+
+////
+//// ///UNUSED FLAGS NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+////#define ZT2_PG_DUMMY_MASK_1       0x0100    //UNUSED FLAG NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+////#define ZT2_PG_DUMMY_MASK_2       0x0200    //UNUSED FLAG NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+////#define ZT2_PG_DUMMY_MASK_3       0x0400    //UNUSED FLAG NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+////#define ZT2_PG_DUMMY_MASK_4       0x0800    //UNUSED FLAG NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+////#define ZT2_FN_DUMMY_MASK_5       0x1000    //UNUSED FLAG NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+////#define ZT2_FN_DUMMY_MASK_6       0x2000    //UNUSED FLAG NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+////#define ZT2_FN_DUMMY_MASK_7       0x4000    //UNUSED FLAG NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+////#define ZT2_FV_DUMMY_MASK_8       0x8000    //UNUSED FLAG NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+////                                            ////////////////////////////////////////////////////////////////////
+
+////Flags definitions for HR2026
+//#define SEI_ZT1_V00_ALARM_FLAG_MASK   0x0001
+//#define SEI_ZT1_PEQ1_ALARM_FLAG_MASK  0x0002
+//#define SEI_ZT1_ALARM_ITI_FLAG_MASK   0x8000
+//#define SEI_ZT2_V02_ALARM_FLAG_MASK   0x0004
+//#define SEI_ZT2_PEQ2_ALARM_FLAG_MASK  0x0008
+//#define SEI_ZT2_ACTIVATED_ITI_DUMMY_MASK  0x4000 //UNUSED FLAG NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+//#define SEI_ZT_ACTIVATED_ITI_FLAG_MASK  0x8000
+
+////Flags definitions for HR2027
+//#define ZT_WATCHDOG_ON_VALUE      0x8000
+//#define ZT_WATCHDOG_OFF_VALUE     0x0000
+
+
+////Register addressing
+////Outgoing
+//#define SEI_MODBUS_ZT_DATA_BASE_REG             2000
+//#define SEI_MODBUS_ZT_TABLE_DATA_SIZE           36  //Taille de la table en écriture = 36 registres (2000 à 2035)    //28      //Taille de la table en écriture = 28 registres (2000 à 2027)
+
+//#define SEI_MODBUS_ZT1_ALARM_DATA_BASE_REG_ADD  2000
+//#define SEI_MODBUS_ZT2_ALARM_DATA_BASE_REG_ADD  2017
+//#define SEI_MODBUS_MISC_DATA_BASE_REG_ADD       2026
+//#define SEI_MODBUS_ZT_WATCHDOG_REG_ADD          2027
+
+//#define MODBUS_ZT1_ALARM_RANKS_BASE_ADD     2001
+//#define MODBUS_ZT1_RANK_PP_INT_1_REG_ADD    2001
+//#define MODBUS_ZT1_RANK_PP_INT_2_REG_ADD    2002
+//#define MODBUS_ZT1_RANK_PP_INT_3_REG_ADD    2003
+//#define MODBUS_ZT1_RANK_PP_INT_4_REG_ADD    2004
+//#define MODBUS_ZT1_RANK_PP_EXT_1_REG_ADD    2005
+//#define MODBUS_ZT1_RANK_PP_EXT_2_REG_ADD    2006
+//#define MODBUS_ZT1_RANK_PP_EXT_3_REG_ADD    2007
+//#define MODBUS_ZT1_RANK_PP_EXT_4_REG_ADD    2008
+//#define MODBUS_ZT1_RANK_PG_1_REG_ADD        2009
+//#define MODBUS_ZT1_RANK_PG_2_REG_ADD        2010
+//#define MODBUS_ZT1_RANK_PG_3_REG_ADD        2011
+//#define MODBUS_ZT1_RANK_PG_4_REG_ADD        2012
+//#define MODBUS_ZT1_RANK_FN_1_REG_ADD        2013
+//#define MODBUS_ZT1_RANK_FN_2_REG_ADD        2014
+//#define MODBUS_ZT1_RANK_FN_3_REG_ADD        2015
+//#define MODBUS_ZT1_RANK_FN_4_REG_ADD        2016
+
+//#define MODBUS_ZT2_ALARM_RANKS_BASE_ADD     2018
+//#define MODBUS_ZT2_RANK_PP_INT_1_REG_ADD    2018
+//#define MODBUS_ZT2_RANK_PP_INT_2_REG_ADD    2019
+//#define MODBUS_ZT2_RANK_PP_INT_3_REG_ADD    2020
+//#define MODBUS_ZT2_RANK_PP_INT_4_REG_ADD    2021
+//#define MODBUS_ZT2_RANK_PP_EXT_1_REG_ADD    2022
+//#define MODBUS_ZT2_RANK_PP_EXT_2_REG_ADD    2023
+//#define MODBUS_ZT2_RANK_PP_EXT_3_REG_ADD    2024
+//#define MODBUS_ZT2_RANK_PP_EXT_4_REG_ADD    2025
+
+
+///////UNUSED FLAGS NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+////#define MODBUS_ZT2_DUMMY_RK_PG_1_REG_ADD    2028    //UNUSED FLAG NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+////#define MODBUS_ZT2_DUMMY_RK_PG_2_REG_ADD    2029    //UNUSED FLAG NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+////#define MODBUS_ZT2_DUMMY_RK_PG_3_REG_ADD    2030    //UNUSED FLAG NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+////#define MODBUS_ZT2_DUMMY_RK_PG_4_REG_ADD    2031    //UNUSED FLAG NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+////#define MODBUS_ZT2_DUMMY_FN_PG_1_REG_ADD    2032    //UNUSED FLAG NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+////#define MODBUS_ZT2_DUMMY_FN_PG_2_REG_ADD    2033    //UNUSED FLAG NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+////#define MODBUS_ZT2_DUMMY_FN_PG_3_REG_ADD    2034    //UNUSED FLAG NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+////#define MODBUS_ZT2_DUMMY_FN_PG_4_REG_ADD    2035    //UNUSED FLAG NECESSARY FOR CC IMPLEMENTATION.  MUST ALWAYS BE 0
+////                                                    ///////////////////////////////////////////////////////////////////
+
+
+////Incoming
+//#define MODBUS_CC_FCYCLE_ZT1_FLAG_MASK   0x0001
+//#define MODBUS_CC_FCYCLE_ZT2_FLAG_MASK   0x0002
+//#define MODBUS_CC_INHIBIT_ZT1_FLAG_MASK  0x0004
+//#define MODBUS_CC_INHIBIT_ZT2_FLAG_MASK  0x0008
+//#define MODBUS_CC_CLK_UPDATE_FLAG_MASK   0x8000
+
+//#define MODBUS_CC_DATA_BASE_REG_ADD         2036//2028
+//#define MODBUS_CC_TABLE_DATA_SIZE           15      //Taille de la table en lecture = 15 registres  (2036 à 2050  ///(2028 à 2042)
+
+
+//#define MODBUS_CC_WATCHDOG_BASE_REG_ADD     2036
+//#define MODBUS_CC_AN_BASE_REG_ADD           2037
+//#define MODBUS_CC_ZT1_TRAIN_TYPE_REG_ADD    2038
+//#define MODBUS_CC_ZT2_TRAIN_TYPE_REG_ADD    2039
+//#define MODBUS_CC_ZT1_TRAIN_ID_1_REG_ADD    2040
+//#define MODBUS_CC_ZT1_TRAIN_ID_2_REG_ADD    2041
+//#define MODBUS_CC_ZT1_TRAIN_ID_3_REG_ADD    2042
+//#define MODBUS_CC_ZT2_TRAIN_ID_1_REG_ADD    2043
+//#define MODBUS_CC_ZT2_TRAIN_ID_2_REG_ADD    2044
+//#define MODBUS_CC_ZT2_TRAIN_ID_3_REG_ADD    2045
+//#define MODBUS_CC_CLK_UPDATE_BASE_REG_ADD   2046
+//#define MODUBS_CC_CLK_SEC_BASE_REG_ADD      2047
+//#define MODUBS_CC_CLK_HR_MIN_BASE_REG_ADD   2048
+//#define MODUBS_CC_CLK_MNT_DAY_BASE_REG_ADD  2049
+//#define MODUBS_CC_CLK_YEAR_BASE_REG_ADD     2050
+
+#endif // MODBUSSEIDEFS_H
diff --git a/sources/Modbus/ModbusMaster.cpp b/sources/Modbus/ModbusSEIMgr.cpp
similarity index 78%
rename from sources/Modbus/ModbusMaster.cpp
rename to sources/Modbus/ModbusSEIMgr.cpp
index d2cf9fe..4402fb6 100644
--- a/sources/Modbus/ModbusMaster.cpp
+++ b/sources/Modbus/ModbusSEIMgr.cpp
@@ -1,8 +1,8 @@
-#include "ModbusMaster.h"
+#include "ModbusSEIMgr.h"
 #include <QTcpSocket>
 #include "ModbusCCDefs.h"
 
-CModbusMaster::CModbusMaster(CModbusRepository *Repo, int ModbusPort, int DevID):
+CModbusSEIMgr::CModbusSEIMgr(CModbusRepository *Repo, int ModbusPort, int DevID):
     CModbusBackend(Repo)
 {
    // connect(mModbusTCPSocketHandle,SIGNAL(readyRead()),this,SLOT(ModbusDataReady()));
@@ -16,7 +16,7 @@ CModbusMaster::CModbusMaster(CModbusRepository *Repo, int ModbusPort, int DevID)
     connect(mModbusTCPSocketHandle,SIGNAL(connected()),this,SLOT(SocketConnected()));
 }
 
-CModbusMaster::~CModbusMaster()
+CModbusSEIMgr::~CModbusSEIMgr()
 {
     if(mModbusTCPSocketHandle->state() != QAbstractSocket::UnconnectedState)
     {
@@ -26,7 +26,7 @@ CModbusMaster::~CModbusMaster()
     delete mModbusTCPSocketHandle;
 }
 
-int CModbusMaster::ConnectToSlave(QString SlaveIP, int SlavePort)
+int CModbusSEIMgr::ConnectToSlave(QString SlaveIP, int SlavePort)
 {
     if(mModbusTCPSocketHandle->state() != QAbstractSocket::UnconnectedState)
     {
@@ -38,7 +38,7 @@ int CModbusMaster::ConnectToSlave(QString SlaveIP, int SlavePort)
     return RET_OK;
 }
 
-int CModbusMaster::DisconnectFromSlave()
+int CModbusSEIMgr::DisconnectFromSlave()
 {
     if(mModbusTCPSocketHandle->state() != QAbstractSocket::ConnectedState)
     {
@@ -52,26 +52,26 @@ int CModbusMaster::DisconnectFromSlave()
     return 1;
 }
 
-void CModbusMaster::SocketConnected()
+void CModbusSEIMgr::SocketConnected()
 {
     emit ModbusMasterConnected(this);
     qDebug("Master: Connection established with slave");
 }
 
-void CModbusMaster::SocketDisconnected()
+void CModbusSEIMgr::SocketDisconnected()
 {
     ModbusLinkDisconnected();
     emit ModbusMasterDisconnected(this);
 }
 
-int CModbusMaster::ReadModbusRegisters()
+int CModbusSEIMgr::ReadModbusRegisters()
 {
     //return SendReadHoldingRegistersRequest(ZT_DATA_BASE_REGISTER_ADDRESS,4);    //Read all 3 registers from ZT (2000 - 2003)
     return RET_OK;
 }
 
 
-void CModbusMaster::RegistersDatabaseUpdated(quint16 StartAddress, quint16 Length)
+void CModbusSEIMgr::RegistersDatabaseUpdated(quint16 StartAddress, quint16 Length)
 {
     Q_UNUSED(StartAddress)
     Q_UNUSED(Length)
@@ -80,19 +80,19 @@ void CModbusMaster::RegistersDatabaseUpdated(quint16 StartAddress, quint16 Lengt
     qDebug("Database updated with ZT data...");
 }
 
-void CModbusMaster::ModbusResponseException(quint8 ExceptionCode, quint8 FctCode)
+void CModbusSEIMgr::ModbusResponseException(quint8 ExceptionCode, quint8 FctCode)
 {
     qDebug("Modbus MASTER exception: code:%d  Fct:%d",ExceptionCode,FctCode);
 }
 
-int CModbusMaster::SendAN1ToZT()
+int CModbusSEIMgr::SendAN1ToZT()
 {
     //return SendWriteHoldingRegistersRequest(CC_AN1_REGISTER_ADDRESS,1);
     //return SendWriteSingleRegisterRequest(CC_AN1_REGISTER_ADDRESS);
     return RET_OK;
 }
 
-int CModbusMaster::SendAN2ToZT()
+int CModbusSEIMgr::SendAN2ToZT()
 {
     //return SendWriteHoldingRegistersRequest(CC_AN2_REGISTER_ADDRESS,1);
     //return SendWriteSingleRegisterRequest(CC_AN2_REGISTER_ADDRESS);
diff --git a/sources/Modbus/ModbusMaster.h b/sources/Modbus/ModbusSEIMgr.h
similarity index 62%
rename from sources/Modbus/ModbusMaster.h
rename to sources/Modbus/ModbusSEIMgr.h
index 9db5564..55631eb 100644
--- a/sources/Modbus/ModbusMaster.h
+++ b/sources/Modbus/ModbusSEIMgr.h
@@ -1,5 +1,5 @@
-#ifndef CMODBUSMASTER_H
-#define CMODBUSMASTER_H
+#ifndef CMODBUSSEIMGR_H
+#define CMODBUSSEIMGR_H
 
 #include <QObject>
 #include "ModbusBackend.h"
@@ -7,12 +7,12 @@
 
 
 
-class CModbusMaster : public CModbusBackend
+class CModbusSEIMgr : public CModbusBackend
 {
     Q_OBJECT
 public:
-    explicit CModbusMaster(CModbusRepository *Repo, int ModbusPort, int DevID);
-    ~CModbusMaster();
+    explicit CModbusSEIMgr(CModbusRepository *Repo, int ModbusPort, int DevID);
+    ~CModbusSEIMgr();
 
     int ConnectToSlave(QString SlaveIP, int SlavePort);
     int DisconnectFromSlave();
@@ -27,8 +27,8 @@ private:
     int mModbusPort;
     
 signals:
-    void ModbusMasterConnected(CModbusMaster *);
-    void ModbusMasterDisconnected(CModbusMaster *);
+    void ModbusMasterConnected(CModbusSEIMgr *);
+    void ModbusMasterDisconnected(CModbusSEIMgr *);
     void ModbusMasterRepositoryUpdated();
 
 public slots:
@@ -36,4 +36,4 @@ public slots:
     void SocketDisconnected();
 };
 
-#endif // CMODBUSMASTER_H
+#endif // CMODBUSSEIMGR_H
diff --git a/sources/Modbus/ModbusTKTransport.cpp b/sources/Modbus/ModbusTKTransport.cpp
index 2e02270..82ae9fd 100644
--- a/sources/Modbus/ModbusTKTransport.cpp
+++ b/sources/Modbus/ModbusTKTransport.cpp
@@ -6,7 +6,7 @@
 
 CModbusTKTransport::CModbusTKTransport(CModbusRepository *Repo)
 {
-    mModbusRepo = Repo;
+    mMCCodbusRepo = Repo;
     mZT1CDVState = mZT2CDVState = false;
     mMaintenanceMode = mForceZT1Clear = mForceZT2Clear = false;
     mZT1TKDataList.clear();
@@ -50,7 +50,7 @@ int CModbusTKTransport::ClearTK(int ZT)
 
         //Clear pannes & itineraire flags
         bool OK = false;
-        quint16 PannesReg = mModbusRepo->GetSingleReg(MODBUS_MISC_DATA_BASE_REG_ADD,&OK);
+        quint16 PannesReg = mMCCodbusRepo->GetSingleReg(MODBUS_MISC_DATA_BASE_REG_ADD,&OK);
 
         if(OK == false)
         {
@@ -65,8 +65,8 @@ int CModbusTKTransport::ClearTK(int ZT)
         //
 
         //Clear repo now...
-        mModbusRepo->WriteMultipleRegs(MODBUS_ZT1_ALARM_DATA_BASE_REG_ADD,Data);
-        mModbusRepo->WriteSingleReg(MODBUS_MISC_DATA_BASE_REG_ADD,PannesReg);
+        mMCCodbusRepo->WriteMultipleRegs(MODBUS_ZT1_ALARM_DATA_BASE_REG_ADD,Data);
+        mMCCodbusRepo->WriteSingleReg(MODBUS_MISC_DATA_BASE_REG_ADD,PannesReg);
 
 
     }
@@ -81,7 +81,7 @@ int CModbusTKTransport::ClearTK(int ZT)
 
         //Clear pannes
         bool OK = false;
-        quint16 PannesReg = mModbusRepo->GetSingleReg(MODBUS_MISC_DATA_BASE_REG_ADD,&OK);
+        quint16 PannesReg = mMCCodbusRepo->GetSingleReg(MODBUS_MISC_DATA_BASE_REG_ADD,&OK);
 
         if(OK == false)
         {
@@ -92,8 +92,8 @@ int CModbusTKTransport::ClearTK(int ZT)
         PannesReg &= ~ZT2_PEQ2_ALARM_FLAG_MASK;
 
         //Clear repo now...
-        mModbusRepo->WriteMultipleRegs(MODBUS_ZT2_ALARM_DATA_BASE_REG_ADD,Data);
-        mModbusRepo->WriteSingleReg(MODBUS_MISC_DATA_BASE_REG_ADD,PannesReg);
+        mMCCodbusRepo->WriteMultipleRegs(MODBUS_ZT2_ALARM_DATA_BASE_REG_ADD,Data);
+        mMCCodbusRepo->WriteSingleReg(MODBUS_MISC_DATA_BASE_REG_ADD,PannesReg);
     }
     else
     {
@@ -115,7 +115,7 @@ int CModbusTKTransport::SendTKToCC(int ZT)
 
         //Get a local buffer of the repo...
         bool OK;
-        DataBuf = mModbusRepo->GetRegs(MODBUS_ZT_DATA_BASE_REG,MODBUS_ZT_TABLE_DATA_SIZE,&OK);
+        DataBuf = mMCCodbusRepo->GetRegs(MODBUS_ZT_DATA_BASE_REG,MODBUS_ZT_TABLE_DATA_SIZE,&OK);
         if(OK == false)
         {
              CEngLog::instance()->AddLogString("Erreur de logique.  ModbusTkTransport::SendTKToCC() ZT1 -> Lecture repository invalide.");
@@ -262,7 +262,7 @@ int CModbusTKTransport::SendTKToCC(int ZT)
         //Update the modbus repo to send the alarms...
         DataBuf[RegOffset(MODBUS_ZT1_ALARM_DATA_BASE_REG_ADD)] = FlagsReg;
         DataBuf[RegOffset(MODBUS_MISC_DATA_BASE_REG_ADD)] = PannesReg;
-        mModbusRepo->WriteMultipleRegs(MODBUS_ZT_DATA_BASE_REG,DataBuf);
+        mMCCodbusRepo->WriteMultipleRegs(MODBUS_ZT_DATA_BASE_REG,DataBuf);
 
     }
     else if(ZT == ZT2_TYPE_ID)
@@ -275,7 +275,7 @@ int CModbusTKTransport::SendTKToCC(int ZT)
 
         //Get a local buffer of the repo...
         bool OK;
-        DataBuf = mModbusRepo->GetRegs(MODBUS_ZT_DATA_BASE_REG,MODBUS_ZT_TABLE_DATA_SIZE,&OK);
+        DataBuf = mMCCodbusRepo->GetRegs(MODBUS_ZT_DATA_BASE_REG,MODBUS_ZT_TABLE_DATA_SIZE,&OK);
         if(OK == false)
         {
              CEngLog::instance()->AddLogString("Erreur de logique.  ModbusTkTransport::SendTKToCC() ZT2 -> Lecture repository invalide.");
@@ -364,7 +364,7 @@ int CModbusTKTransport::SendTKToCC(int ZT)
          //Update the modbus repo to send the alarms...
         DataBuf[RegOffset(MODBUS_ZT2_ALARM_DATA_BASE_REG_ADD)] = FlagsReg;
         DataBuf[RegOffset(MODBUS_MISC_DATA_BASE_REG_ADD)] = PannesReg;
-        mModbusRepo->WriteMultipleRegs(MODBUS_ZT_DATA_BASE_REG,DataBuf);
+        mMCCodbusRepo->WriteMultipleRegs(MODBUS_ZT_DATA_BASE_REG,DataBuf);
 
     }
     else
@@ -726,7 +726,7 @@ void CModbusTKTransport::ExecZT2SM()
 
 void CModbusTKTransport::ModbusCCUpdated()
 {
-    qint16 ClearReg = mModbusRepo->GetSingleReg(MODBUS_CC_AN_BASE_REG_ADD);
+    qint16 ClearReg = mMCCodbusRepo->GetSingleReg(MODBUS_CC_AN_BASE_REG_ADD);
     mZT1Clear = (ClearReg & (MODBUS_CC_FCYCLE_ZT1_FLAG_MASK)) != 0;
     mZT2Clear = (ClearReg & (MODBUS_CC_FCYCLE_ZT2_FLAG_MASK)) != 0;
    // qDebug("ZT1Clr = %d",mZT1Clear);
diff --git a/sources/Modbus/ModbusTKTransport.h b/sources/Modbus/ModbusTKTransport.h
index 2994604..45f591e 100644
--- a/sources/Modbus/ModbusTKTransport.h
+++ b/sources/Modbus/ModbusTKTransport.h
@@ -67,7 +67,7 @@ public:
     virtual unsigned int EnterMaintenance();
 
 private:
-    CModbusRepository *mModbusRepo;
+    CModbusRepository *mMCCodbusRepo;
     QList<CZTDetectionData> mZT1TKDataList,mZT2TKDataList;
     bool mZT1CDVState, mZT2CDVState;
     bool mMaintenanceMode, mForceZT1Clear, mForceZT2Clear;
diff --git a/sources/ZTVersion.h b/sources/ZTVersion.h
index d684e54..dd7832f 100644
--- a/sources/ZTVersion.h
+++ b/sources/ZTVersion.h
@@ -1,4 +1,5 @@
-/*******************************************************************************
+
+ /*******************************************************************************
 *                                                                              *
 * Société de Transports de Montréal.                                    	   *
 * 2012 - 2013                                                                        *
diff --git a/sources/ZTconfigmgr.cpp b/sources/ZTconfigmgr.cpp
index da9a617..cbd5e98 100644
--- a/sources/ZTconfigmgr.cpp
+++ b/sources/ZTconfigmgr.cpp
@@ -205,6 +205,28 @@ ZTConfigResult CZTConfigMgr::LoadZTConfig()
                     mModbusCCIFName = (string.mid(pos));
                     CEngLog::instance()->AddLogString(QString("Interface Modbus CC = %1").arg(mModbusCCIFName),1);
                 }
+                else if(string.contains("MODBUS_SEI_DEVID"))
+                {
+                    bool OK;
+                    mModbusSEIDevID = (string.mid(pos).toInt(&OK));
+                    if(OK == false)
+                    {
+                        CEngLog::instance()->AddLogString(QString().sprintf("Invalid MODBUS_SEI_DEVID parameter: %s",string.mid(pos).toUtf8().constData()));
+                        mModbusSEIDevID = 0;
+                    }
+                    CEngLog::instance()->AddLogString(QString().sprintf("Port DevID SEI = %d",mModbusSEIDevID));
+                }
+                else if(string.contains("MODBUS_SEI_PORT"))
+                {
+                     bool OK;
+                    mModbusSEIPort = (string.mid(pos).toInt(&OK));
+                    if(OK == false)
+                    {
+                        CEngLog::instance()->AddLogString(QString().sprintf("Invalid MODBUS_SEI_PORT parameter: %s",string.mid(pos).toUtf8().constData()));
+                        mModbusSEIPort = 6060;
+                    }
+                    CEngLog::instance()->AddLogString(QString().sprintf("Port DevID SEI = %d",mModbusSEIPort));
+                }
 
                 //Station configuration parameters
                 else if(string.contains("STATION"))
@@ -299,6 +321,16 @@ int CZTConfigMgr::GetModbusCCPort()
     return mModbusCCPort;
 }
 
+int CZTConfigMgr::GetModbusSEIPort()
+{
+    return mModbusSEIPort;
+}
+
+int CZTConfigMgr::GetModbusSEIDevID()
+{
+    return mModbusSEIDevID;
+}
+
 QString CZTConfigMgr::GetDataQIPAddress()
 {
     return mDataQIPAddr;
diff --git a/sources/ZTconfigmgr.h b/sources/ZTconfigmgr.h
index 386292c..0e2e400 100644
--- a/sources/ZTconfigmgr.h
+++ b/sources/ZTconfigmgr.h
@@ -93,6 +93,8 @@ public:
     ZTConfigModbusEnableMode GetModbusCCEnabled();
     int GetModbusCCPort();
     int GetModbusCCDevID();
+    int GetModbusSEIPort();
+    int GetModbusSEIDevID();
     QString GetModbusCCIFName();
 //	int GetLaserSensorCalib(){return mConfig_Station_LaserSensorCalib;}
 
@@ -109,12 +111,15 @@ private:
 
     QString mConfig_Station_StationName;
     QString mModbusCCIFName;
+
 //    int mConfig_Station_LaserSensorCalib;
     int mEngLogVerbosity;
 	bool mUseSimulator;
     ZTConfigModbusEnableMode mUseModbusCCMode;
     int mModbusCCDevID;
     int mModbusCCPort;
+    int mModbusSEIPort;
+    int mModbusSEIDevID;
 
 };
 
diff --git a/sources/Zonetest.cpp b/sources/Zonetest.cpp
index 2a389db..1a5fdb6 100644
--- a/sources/Zonetest.cpp
+++ b/sources/Zonetest.cpp
@@ -58,8 +58,10 @@
 #include "ZTVersion.h"
 #include "ModbusCCDefs.h"
 #include "ModbusTKTransport.h"
+#include "ModbusSEIDefs.h"
 #include <sys/time.h>
 
+
 #ifdef USE_NETWORKING
 #include "NetworkManager.h"
 #endif
@@ -84,6 +86,7 @@ CZoneTest::CZoneTest():
     mTKTransportInterface = 0;
     mCCModbusRepository = 0;
     mModbusCCMgr = 0;
+    mModbusSEIMgr = 0;
 
     mSimulationON = false;
     mWatchdogEnabled = true;
@@ -127,6 +130,11 @@ CZoneTest::~CZoneTest()
         delete mModbusCCMgr;
     }
 
+    if(mModbusSEIMgr != 0)
+    {
+        delete mModbusSEIMgr;
+    }
+
 	if(mAnalogModule != 0)
 		delete mAnalogModule;
 }
@@ -554,14 +562,24 @@ unsigned int CZoneTest::InitZT()
 
     if(UseModbusInterface == true)
     {
-        int ModbusPort = CZTConfigMgr::instance()->GetModbusCCPort();
-        int DevID = CZTConfigMgr::instance()->GetModbusCCDevID();
+        int ModbusCCPort = CZTConfigMgr::instance()->GetModbusCCPort();
+        int CCDevID = CZTConfigMgr::instance()->GetModbusCCDevID();
+        int ModbusSEIPort = CZTConfigMgr::instance()->GetModbusSEIPort();
+        int SEIDevID = CZTConfigMgr::instance()->GetModbusSEIDevID();
         mWatchdogEnabled=false;
 
-        if(DevID >= 255)
+        if(CCDevID >= 255)
         {
-            mWelcomePagePtr->InsertTextBoxString(QString("Valeur DevID Modbus CC invalide (%1)").arg(DevID));
-            CEngLog::instance()->AddLogString(QString("Valeur DevID Modbus CC invalide (%1)").arg(DevID),1);
+            mWelcomePagePtr->InsertTextBoxString(QString("Valeur DevID Modbus CC invalide (%1)").arg(CCDevID));
+            CEngLog::instance()->AddLogString(QString("Valeur DevID Modbus CC invalide (%1)").arg(CCDevID),1);
+            EnterDeadlockState();
+            return RET_ERROR;
+        }
+
+        if(SEIDevID >= 255)
+        {
+            mWelcomePagePtr->InsertTextBoxString(QString("Valeur DevID Modbus SEI invalide (%1)").arg(SEIDevID));
+            CEngLog::instance()->AddLogString(QString("Valeur DevID Modbus SEI invalide (%1)").arg(SEIDevID),1);
             EnterDeadlockState();
             return RET_ERROR;
         }
@@ -571,10 +589,18 @@ unsigned int CZoneTest::InitZT()
         mCCModbusRepository->AddHRDataMap(MODBUS_CC_DATA_BASE_REG_ADD,MODBUS_ZT_TABLE_DATA_SIZE);    //Add the CC data map
         if(mModbusCCMgr == 0)
         {
-            mModbusCCMgr = new CModbusCCMgr(mCCModbusRepository,ModbusPort,DevID);
+            mModbusCCMgr = new CModbusCCMgr(mCCModbusRepository,ModbusCCPort,CCDevID);
         }
         mModbusCCMgr->StartModbusCCServer();
 
+        mSEIModbusRepository = new CModbusRepository;
+        mSEIModbusRepository->AddHRDataMap(SEI_MODBUS_ZT_DATA_BASE_REG,SEI_MODBUS_ZT_TABLE_DATA_SIZE);  //Add the ZT data map
+        mSEIModbusRepository->AddHRDataMap(SEI_MODBUS_SEI_DATA_BASE_REG,SEI_MODBUS_SEI_TABLE_DATA_SIZE); //Add the SEI data map
+        if(mModbusSEIMgr == 0)
+        {
+            mModbusSEIMgr = new CModbusSEIMgr(mSEIModbusRepository,ModbusSEIPort,SEIDevID);
+        }
+
         CModbusTKTransport *TransportInterface = new CModbusTKTransport(mCCModbusRepository);
         mTKTransportInterface = (CTKTransportInterface*)TransportInterface;
         connect(mModbusCCMgr,SIGNAL(RepoHasChanged()),TransportInterface,SLOT(ModbusCCUpdated()));
diff --git a/sources/Zonetest.h b/sources/Zonetest.h
index c26414a..5cc90c7 100644
--- a/sources/Zonetest.h
+++ b/sources/Zonetest.h
@@ -57,6 +57,7 @@
 #include "DiscreteTKTransport.h"
 #include "ModbusRepository.h"
 #include "ModbusCCMgr.h"
+#include "ModbusSEIMgr.h"
 #include "NetworkCfgMgr.h"
 
 #include "TCPProtocol.h"
@@ -189,8 +190,9 @@ private:
     CWatchdogCtrl *mInternalWatchdog;
     bool mWatchdogEnabled;
     CTKTransportInterface *mTKTransportInterface;
-    CModbusRepository *mCCModbusRepository;
+    CModbusRepository *mCCModbusRepository, *mSEIModbusRepository;
     CModbusCCMgr *mModbusCCMgr;
+    CModbusSEIMgr *mModbusSEIMgr;
     CNetworkCfgMgr mNetworkCfgMgr;
 
     QLocalSocket mACPISocket;