diff --git a/Makefile b/Makefile
index 6bb5ca4a..b5619d49 100644
--- a/Makefile
+++ b/Makefile
@@ -17,6 +17,9 @@ LIB_SOURCE_DIRS += src/mms/iso_common
 LIB_SOURCE_DIRS += src/mms/iso_mms/common
 LIB_SOURCE_DIRS += src/mms/iso_mms/asn1c
 LIB_SOURCE_DIRS += src/mms/iso_server
+
+LIB_SOURCE_DIRS += src/logging
+
 ifndef EXCLUDE_ETHERNET_WINDOWS
 LIB_SOURCE_DIRS += src/goose
 LIB_SOURCE_DIRS += src/sampled_values
diff --git a/config/stack_config.h b/config/stack_config.h
index e84ac65a..51ae3cfb 100644
--- a/config/stack_config.h
+++ b/config/stack_config.h
@@ -186,6 +186,7 @@
 #define MMS_READ_SERVICE 1
 #define MMS_WRITE_SERVICE 1
 #define MMS_GET_NAME_LIST 1
+#define MMS_JOURNAL_SERVICE 1
 #define MMS_GET_VARIABLE_ACCESS_ATTRIBUTES 1
 #define MMS_DATA_SET_SERVICE 1
 #define MMS_DYNAMIC_DATA_SETS 1
diff --git a/config/stack_config.h.cmake b/config/stack_config.h.cmake
index c7ad4c4c..d1698165 100644
--- a/config/stack_config.h.cmake
+++ b/config/stack_config.h.cmake
@@ -175,6 +175,7 @@
 #define MMS_READ_SERVICE 1
 #define MMS_WRITE_SERVICE 1
 #define MMS_GET_NAME_LIST 1
+#define MMS_JOURNAL_SERVICE 1
 #define MMS_GET_VARIABLE_ACCESS_ATTRIBUTES 1
 #define MMS_DATA_SET_SERVICE 1
 #define MMS_DYNAMIC_DATA_SETS 1
diff --git a/src/iec61850/server/mms_mapping/logging.c b/src/iec61850/server/mms_mapping/logging.c
index 160b3bc5..8a07a524 100644
--- a/src/iec61850/server/mms_mapping/logging.c
+++ b/src/iec61850/server/mms_mapping/logging.c
@@ -190,8 +190,8 @@ enableLogging(LogControl* logControl)
         printf("   data set (%s) not found!\n", logControl->dataSetRef);
         return false;
     }
-
-
+    else
+        logControl->dataSet = dataSet;
 
     return true;
 }
@@ -326,6 +326,7 @@ createLogControlBlock(LogControlBlock* logControlBlock,
     logControl->mmsType = lcb;
     logControl->mmsValue = mmsValue;
     logControl->logControlBlock = logControlBlock;
+    logControl->triggerOps = logControlBlock->trgOps;
 
     logControl->enabled = logControlBlock->logEna;
 
diff --git a/src/iec61850/server/mms_mapping/mms_mapping.c b/src/iec61850/server/mms_mapping/mms_mapping.c
index 2560c886..30a1fb59 100644
--- a/src/iec61850/server/mms_mapping/mms_mapping.c
+++ b/src/iec61850/server/mms_mapping/mms_mapping.c
@@ -2621,12 +2621,37 @@ MmsMapping_triggerLogging(MmsMapping* self, MmsValue* value, LogInclusionFlag fl
         LogControl* lc = (LogControl*) element->data;
 
         if ((lc->enabled) && (lc->dataSet != NULL)) {
-          //  switch (flag) {
+
 
             int index;
 
+            switch (flag) {
+
+            case LOG_CONTROL_VALUE_UPDATE:
+                if ((lc->triggerOps & TRG_OPT_DATA_UPDATE) == 0)
+                    continue;
+
+                break;
+
+            case LOG_CONTROL_VALUE_CHANGED:
+                if (((lc->triggerOps & TRG_OPT_DATA_CHANGED) == 0) &&
+                        ((lc->triggerOps & TRG_OPT_DATA_UPDATE) == 0))
+                    continue;
+
+                break;
+
+            case LOG_CONTROL_QUALITY_CHANGED:
+                if ((lc->triggerOps & TRG_OPT_QUALITY_CHANGED) == 0)
+                    continue;
+
+                break;
+
+            default:
+                continue;
+            }
+
             if (DataSet_isMemberValue(lc->dataSet, value, &index)) {
-                printf("Log value\n");
+                printf("Log value - flag:%i\n", flag);
             }
 
 
diff --git a/src/iec61850/server/mms_mapping/reporting.c b/src/iec61850/server/mms_mapping/reporting.c
index 8d16731a..b232d0d3 100644
--- a/src/iec61850/server/mms_mapping/reporting.c
+++ b/src/iec61850/server/mms_mapping/reporting.c
@@ -1679,7 +1679,7 @@ removeAllGIReportsFromReportBuffer(ReportBuffer* reportBuffer)
 static void
 enqueueReport(ReportControl* reportControl, bool isIntegrity, bool isGI, uint64_t timeOfEntry)
 {
-   // if (DEBUG_IED_SERVER)
+    if (DEBUG_IED_SERVER)
         printf("IED_SERVER: enqueueReport: RCB name: %s (SQN:%u) enabled:%i buffered:%i buffering:%i intg:%i GI:%i\n",
             reportControl->name, (unsigned) reportControl->sqNum, reportControl->enabled,
             reportControl->isBuffering, reportControl->buffered, isIntegrity, isGI);
diff --git a/src/logging/log_storage_sqlite.c b/src/logging/log_storage_sqlite.c
new file mode 100644
index 00000000..df766325
--- /dev/null
+++ b/src/logging/log_storage_sqlite.c
@@ -0,0 +1,67 @@
+/*
+ *  log_storage_sqlite.c
+ *
+ */
+
+
+#include "logging_api.h"
+
+
+static bool
+SqLiteLogStorage_initializeLog(const char* logName, int logSize);
+
+static bool
+SqLiteLogStorage_storeEntry(const char* logName, uint64_t entryID, MmsValue* timestamp,
+        int entrySize, uint8_t* entryData);
+
+static bool
+SqLiteLogStorage_getEntries(const char* logName, MmsValue* timestamp,
+        LogEntryCallback callback, void* parameter);
+
+static bool
+SqLiteLogStorage_getEntriesAfter(const char* logName, MmsValue* timestamp, uint64_t entryID,
+        LogEntryCallback callback, void* parameter);
+
+static struct sLogStorage logStorageInstance = {
+        SqLiteLogStorage_initializeLog,
+        SqLiteLogStorage_storeEntry,
+        SqLiteLogStorage_getEntries,
+        SqLiteLogStorage_getEntriesAfter
+};
+
+LogStorage
+SqLiteStorage_createInstance()
+{
+    return &logStorageInstance;
+}
+
+static bool
+SqLiteLogStorage_initializeLog(const char* logName, int logSize)
+{
+    return true;
+}
+
+static bool
+SqLiteLogStorage_storeEntry(const char* logName, uint64_t entryID, MmsValue* timestamp,
+        int entrySize, uint8_t* entryData)
+{
+    return true;
+}
+
+static bool
+SqLiteLogStorage_getEntries(const char* logName, MmsValue* timestamp,
+        LogEntryCallback callback, void* parameter)
+{
+    return true;
+}
+
+static bool
+SqLiteLogStorage_getEntriesAfter(const char* logName, MmsValue* timestamp, uint64_t entryID,
+        LogEntryCallback callback, void* parameter)
+{
+    return true;
+}
+
+
+
+
diff --git a/src/logging/logging_api.h b/src/logging/logging_api.h
new file mode 100644
index 00000000..deb0a9c8
--- /dev/null
+++ b/src/logging/logging_api.h
@@ -0,0 +1,31 @@
+/*
+ * logging_api.h
+ *
+ */
+
+#ifndef LIBIEC61850_SRC_LOGGING_LOGGING_API_H_
+#define LIBIEC61850_SRC_LOGGING_LOGGING_API_H_
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "mms_value.h"
+
+typedef struct sLogStorage* LogStorage;
+
+typedef void (*LogEntryCallback) (void* parameter, MmsValue* timestamp, uint64_t entryID, int entrySize,
+        uint8_t* entryData);
+
+struct sLogStorage {
+    bool (*initializeLog) (const char* logName, int logSize);
+
+    bool (*storeEntry) (const char* logName, uint64_t entryID, MmsValue* timestamp, int entrySize,
+            uint8_t* entryData);
+
+    bool (*getEntries) (const char* logName, MmsValue* timestamp,
+            LogEntryCallback callback, void* parameter);
+
+    bool (*getEntriesAfter) (const char* logName, MmsValue* timestamp, uint64_t entryID,
+            LogEntryCallback callback, void* parameter);
+};
+
+#endif /* LIBIEC61850_SRC_LOGGING_LOGGING_API_H_ */
diff --git a/src/mms/inc_private/mms_server_internal.h b/src/mms/inc_private/mms_server_internal.h
index 69913375..2ec666de 100644
--- a/src/mms/inc_private/mms_server_internal.h
+++ b/src/mms/inc_private/mms_server_internal.h
@@ -221,6 +221,14 @@ mmsServer_handleStatusRequest(
         int invokeId,
         ByteBuffer* response);
 
+void
+mmsServer_handleReadJournalRequest(
+        MmsServerConnection connection,
+        uint8_t* requestBuffer,
+        int bufPos, int maxBufPos,
+        uint32_t invokeId,
+        ByteBuffer* response);
+
 void
 mmsServer_handleFileDirectoryRequest(
         MmsServerConnection connection,
diff --git a/src/mms/iso_mms/client/mms_client_files.c b/src/mms/iso_mms/client/mms_client_files.c
index 2ecf29a1..fcc7de18 100644
--- a/src/mms/iso_mms/client/mms_client_files.c
+++ b/src/mms/iso_mms/client/mms_client_files.c
@@ -60,7 +60,7 @@ mmsClient_createReadJournalRequest(uint32_t invokeId, ByteBuffer* request, const
     bufPos = BerEncoder_encodeTL(0x02, invokeIdSize, buffer, bufPos);
     bufPos = BerEncoder_encodeUInt32(invokeId, buffer, bufPos);
 
-    /* Encode FileOpen tag (context | structured ) [65 = 41h] */
+    /* Encode read journal tag (context | structured ) [65 = 41h] */
     buffer[bufPos++] = 0xbf;
     buffer[bufPos++] = 0x41;
 
@@ -69,8 +69,6 @@ mmsClient_createReadJournalRequest(uint32_t invokeId, ByteBuffer* request, const
 
     bufPos = BerEncoder_encodeTL(0xa1, objectIdSize, buffer, bufPos);
 
-//    bufPos = BerEncoder_encodeTL(0xa1, domainIdStringSize, buffer, bufPos);
-
     bufPos = BerEncoder_encodeOctetString(0x1a, (uint8_t*) domainId, domainIdStringSize, buffer, bufPos);
     bufPos = BerEncoder_encodeOctetString(0x1a, (uint8_t*) itemId, itemIdStringSize, buffer, bufPos);
 
diff --git a/src/mms/iso_mms/server/mms_journal.c b/src/mms/iso_mms/server/mms_journal.c
index 2f2f91df..ecb26d19 100644
--- a/src/mms/iso_mms/server/mms_journal.c
+++ b/src/mms/iso_mms/server/mms_journal.c
@@ -28,6 +28,9 @@
 MmsJournal
 MmsJournal_create(const char* name)
 {
+    if (DEBUG_MMS_SERVER)
+        printf("MMS_SERVER: create new journal %s\n", name);
+
     MmsJournal self = (MmsJournal) GLOBAL_MALLOC(sizeof(struct sMmsJournal));
 
     self->name = copyString(name);
diff --git a/src/mms/iso_mms/server/mms_journal_service.c b/src/mms/iso_mms/server/mms_journal_service.c
new file mode 100644
index 00000000..e10e7e6d
--- /dev/null
+++ b/src/mms/iso_mms/server/mms_journal_service.c
@@ -0,0 +1,131 @@
+/*
+ *  mms_journal_service.c
+ *
+ *  Copyright 2016 Michael Zillgith
+ *
+ *  This file is part of libIEC61850.
+ *
+ *  libIEC61850 is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  libIEC61850 is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with libIEC61850.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *  See COPYING file for the complete license text.
+ */
+
+#include "libiec61850_platform_includes.h"
+#include "mms_server_internal.h"
+
+#if (MMS_JOURNAL_SERVICE == 1)
+
+static bool
+parseStringWithMaxLength(char* filename, int maxLength, uint8_t* buffer, int* bufPos, int maxBufPos , uint32_t invokeId, ByteBuffer* response)
+{
+    uint8_t tag = buffer[(*bufPos)++];
+    int length;
+
+    if (tag != 0x19) {
+      mmsServer_writeMmsRejectPdu(&invokeId, MMS_ERROR_REJECT_INVALID_PDU, response);
+      return false;
+    }
+
+    *bufPos = BerDecoder_decodeLength(buffer, &length, *bufPos, maxBufPos);
+
+    if (*bufPos < 0)  {
+      mmsServer_writeMmsRejectPdu(&invokeId, MMS_ERROR_REJECT_INVALID_PDU, response);
+      return false;
+    }
+
+    if (length > maxLength) {
+      mmsServer_writeMmsRejectPdu(&invokeId, MMS_ERROR_REJECT_REQUEST_INVALID_ARGUMENT, response);
+      return false;
+    }
+
+    memcpy(filename, buffer + *bufPos, length);
+    filename[length] = 0;
+    *bufPos += length;
+
+    return true;
+}
+
+
+void
+mmsServer_handleReadJournalRequest(
+        MmsServerConnection connection,
+        uint8_t* requestBuffer,
+        int bufPos, int maxBufPos,
+        uint32_t invokeId,
+        ByteBuffer* response)
+{
+    printf("READ-JOURNAL\n");
+
+    char domainId[65];
+    char logName[65];
+
+    bool hasNames = false;
+
+    while (bufPos < maxBufPos) {
+        uint8_t tag = requestBuffer[bufPos++];
+        int length;
+
+        bufPos = BerDecoder_decodeLength(requestBuffer, &length, bufPos, maxBufPos);
+
+        if (bufPos < 0)  {
+            mmsServer_writeMmsRejectPdu(&invokeId, MMS_ERROR_REJECT_INVALID_PDU, response);
+            return;
+        }
+
+        switch (tag) {
+
+        case 0xa0:
+            {
+
+                uint8_t objectIdTag = requestBuffer[bufPos++];
+                bufPos = BerDecoder_decodeLength(requestBuffer, &length, bufPos, maxBufPos);
+
+                switch (objectIdTag) {
+                case 0xa1: /* domain-specific */
+                    printf("  domain-specific-log\n");
+
+                    if (!parseStringWithMaxLength(domainId, 64, requestBuffer, &bufPos, bufPos + length, invokeId, response)) {
+                        mmsServer_writeMmsRejectPdu(&invokeId, MMS_ERROR_REJECT_REQUEST_INVALID_ARGUMENT, response);
+                        return;
+                    }
+
+                    if (!parseStringWithMaxLength(logName, 64, requestBuffer, &bufPos, bufPos + length, invokeId, response)) {
+                        mmsServer_writeMmsRejectPdu(&invokeId, MMS_ERROR_REJECT_REQUEST_INVALID_ARGUMENT, response);
+                        return;
+                    }
+
+                    printf("  domain: %s log: %s\n", domainId, logName);
+
+                    break;
+
+
+                default:
+                    mmsServer_writeMmsRejectPdu(&invokeId, MMS_ERROR_REJECT_UNRECOGNIZED_MODIFIER, response);
+                    return;
+
+                }
+            }
+
+            break;
+
+        default:
+            mmsServer_writeMmsRejectPdu(&invokeId, MMS_ERROR_REJECT_INVALID_PDU, response);
+            return;
+        }
+
+        bufPos += length;
+    }
+}
+
+#endif /* (MMS_JOURNAL_SERVICE == 1) */
diff --git a/src/mms/iso_mms/server/mms_server_connection.c b/src/mms/iso_mms/server/mms_server_connection.c
index c0cf1c20..377d3e71 100644
--- a/src/mms/iso_mms/server/mms_server_connection.c
+++ b/src/mms/iso_mms/server/mms_server_connection.c
@@ -113,6 +113,12 @@ handleConfirmedRequestPdu(
 		if (extendedTag) {
 		    switch(tag) {
 
+#if (MMS_JOURNAL_SERVICE == 1)
+            case 0x41: /* read-journal */
+                mmsServer_handleReadJournalRequest(self, buffer, bufPos, bufPos + length, invokeId, response);
+                break;
+#endif /* (MMS_JOURNAL_SERVICE == 1) */
+
 #if (MMS_FILE_SERVICE == 1)
 		    case 0x48: /* file-open-request */
 		        mmsServer_handleFileOpenRequest(self, buffer, bufPos, bufPos + length, invokeId, response);
diff --git a/src/mms/iso_mms/server/mms_status_service.c b/src/mms/iso_mms/server/mms_status_service.c
index d0d8f14b..a547b9f0 100644
--- a/src/mms/iso_mms/server/mms_status_service.c
+++ b/src/mms/iso_mms/server/mms_status_service.c
@@ -24,7 +24,7 @@
 #include "libiec61850_platform_includes.h"
 #include "mms_server_internal.h"
 
-#if MMS_STATUS_SERVICE == 1
+#if (MMS_STATUS_SERVICE == 1)
 
 void
 mmsServer_handleStatusRequest(