diff --git a/modular-psu-firmware.eez-project b/modular-psu-firmware.eez-project
index 644788d37..25430c294 100644
--- a/modular-psu-firmware.eez-project
+++ b/modular-psu-firmware.eez-project
@@ -534215,7 +534215,7 @@
             "response": {}
           },
           {
-            "name": "SENSe:DLOG:TRACe:COMMent",
+            "name": "SENSe:DLOG:TRACe:REMark",
             "parameters": [
               {
                 "name": "comment",
@@ -534227,6 +534227,22 @@
               }
             ],
             "response": {}
+          },
+          {
+            "name": "SENSe:DLOG:TRACe:REMark?",
+            "parameters": [
+              {
+                "name": "comment",
+                "type": [
+                  {
+                    "type": "quoted-string"
+                  }
+                ]
+              }
+            ],
+            "response": {
+              "type": "quoted-string"
+            }
           }
         ]
       },
diff --git a/scripts/Curve Tracer/Curve Tracer.py b/scripts/Curve Tracer/Curve Tracer.py
index dca20aabd..6726df548 100644
--- a/scripts/Curve Tracer/Curve Tracer.py	
+++ b/scripts/Curve Tracer/Curve Tracer.py	
@@ -126,7 +126,7 @@ def start_BJT(cgnd):
     scpi("CURR " + str(Ic_max))
     scpi("SENS:CURR:RANG DEFault")
 
-    scpi('SENS:DLOG:TRAC:COMMent "Device name = ' + deviceName + '; Uce,max = ' + str(Uce_max) + '; Ic,max = ' + str(Ic_max) + '"')
+    scpi('SENS:DLOG:TRAC:REM "Device name = ' + deviceName + '; Uce,max = ' + str(Uce_max) + '; Ic,max = ' + str(Ic_max) + '"')
 
     scpi("SENS:DLOG:TRAC:X:UNIT VOLT")
     scpi("SENS:DLOG:TRAC:X:RANG:MIN " + str(Uce_min))
@@ -217,7 +217,7 @@ def start_MOSFET(cgnd):
     scpi("VOLT 0")
     scpi("CURR " + str(Id_max))
 
-    scpi('SENS:DLOG:TRAC:COMMent "Device name = ' + deviceName + '; Uds,max = ' + str(Uds_max) + '; Id,max = ' + str(Id_max) + '"')
+    scpi('SENS:DLOG:TRAC:REM "Device name = ' + deviceName + '; Uds,max = ' + str(Uds_max) + '; Id,max = ' + str(Id_max) + '"')
 
     scpi("SENS:DLOG:TRAC:X:UNIT VOLT")
     scpi("SENS:DLOG:TRAC:X:RANG:MIN " + str(Uds_logMin))
diff --git a/scripts/Diode Tester/Diode Tester.py b/scripts/Diode Tester/Diode Tester.py
index 4f4eae81d..c4027d169 100644
--- a/scripts/Diode Tester/Diode Tester.py	
+++ b/scripts/Diode Tester/Diode Tester.py	
@@ -66,7 +66,7 @@ def start():
         scpi("VOLT 0")
         scpi("CURR " + str(I_SET))
 
-        scpi('SENS:DLOG:TRAC:COMMent "Diode name = ' + diode_name + '; U step = ' + str(U_step) + '"')
+        scpi('SENS:DLOG:TRAC:REM "Diode name = ' + diode_name + '; U step = ' + str(U_step) + '"')
 
         scpi("SENS:DLOG:TRAC:X:UNIT VOLT")
         scpi("SENS:DLOG:TRAC:X:STEP " + str(U_step))
diff --git a/scripts/transfer-curve (NPN).py b/scripts/transfer-curve (NPN).py
index 27aa9a381..eb0be5f22 100644
--- a/scripts/transfer-curve (NPN).py	
+++ b/scripts/transfer-curve (NPN).py	
@@ -37,7 +37,7 @@ def start(deviceName):
         scpi("CURR " + str(Ic_max))
         scpi("SENS:CURR:RANG DEFault")
 
-        scpi('SENS:DLOG:TRAC:COMMent "NPN Transfer curve for ' + deviceName + '"')
+        scpi('SENS:DLOG:TRAC:REM "NPN Transfer curve for ' + deviceName + '"')
 
         scpi("SENS:DLOG:TRAC:X:UNIT VOLT")
         scpi("SENS:DLOG:TRAC:X:RANG:MIN " + str(Ube_min + Ube_step))
diff --git a/src/eez/modules/psu/dlog_view.cpp b/src/eez/modules/psu/dlog_view.cpp
index 39f30ab99..071e96aa4 100644
--- a/src/eez/modules/psu/dlog_view.cpp
+++ b/src/eez/modules/psu/dlog_view.cpp
@@ -563,7 +563,7 @@ void scaleToFit(Recording &recording) {
     }
 }
 
-void openFile(const char *filePath) {
+bool openFile(const char *filePath, int *err) {
     if (osThreadGetId() != g_scpiTaskHandle) {
         g_state = STATE_LOADING;
         g_loadingStartTickCount = millis();
@@ -572,11 +572,13 @@ void openFile(const char *filePath) {
         memset(&g_recording, 0, sizeof(Recording));
 
         osMessagePut(g_scpiMessageQueueId, SCPI_QUEUE_MESSAGE(SCPI_QUEUE_MESSAGE_TARGET_NONE, SCPI_QUEUE_MESSAGE_DLOG_SHOW_FILE, 0), osWaitForever);
-        return;
+        return true;
     }
 
+    g_state = STATE_LOADING;
+
     File file;
-    if (file.open(g_filePath, FILE_OPEN_EXISTING | FILE_READ)) {
+    if (file.open(filePath != nullptr ? filePath : g_filePath, FILE_OPEN_EXISTING | FILE_READ)) {
         uint8_t * buffer = FILE_VIEW_BUFFER;
         uint32_t read = file.read(buffer, DLOG_VERSION1_HEADER_SIZE);
         if (read == DLOG_VERSION1_HEADER_SIZE) {
@@ -749,13 +751,26 @@ void openFile(const char *filePath) {
                 }
             }
         }
+
+        if (g_state != STATE_READY) {
+            if (err) {
+                // TODO
+                *err = SCPI_ERROR_MASS_STORAGE_ERROR;
+            }
+        }
+    } else {
+        if (err) {
+            *err = SCPI_ERROR_FILE_NOT_FOUND;
+        }
     }
 
     file.close();
 
-    if (g_state == STATE_LOADING) {
+    if (g_state != STATE_READY) {
         g_state = STATE_ERROR;
     }
+
+    return g_state != STATE_ERROR;
 }
 
 Recording &getRecording() {
diff --git a/src/eez/modules/psu/dlog_view.h b/src/eez/modules/psu/dlog_view.h
index 61c71ef56..b50f326d9 100644
--- a/src/eez/modules/psu/dlog_view.h
+++ b/src/eez/modules/psu/dlog_view.h
@@ -208,7 +208,7 @@ extern bool g_showLegend;
 extern bool g_showLabels;
 
 // open dlog file for viewing
-void openFile(const char *filePath);
+bool openFile(const char *filePath, int *err = nullptr);
 
 extern State getState();
 
diff --git a/src/eez/modules/psu/scpi/display.cpp b/src/eez/modules/psu/scpi/display.cpp
index 66008da13..1d3b6eefd 100644
--- a/src/eez/modules/psu/scpi/display.cpp
+++ b/src/eez/modules/psu/scpi/display.cpp
@@ -27,6 +27,7 @@
 #include <eez/system.h>
 #endif
 
+#include <eez/modules/psu/dlog_record.h>
 #include <eez/modules/psu/dlog_view.h>
 
 #include <eez/libs/image/jpeg.h>
@@ -197,7 +198,29 @@ scpi_result_t scpi_cmd_displayDataQ(scpi_t *context) {
 
 scpi_result_t scpi_cmd_displayWindowDlog(scpi_t *context) {
 #if OPTION_DISPLAY
-    dlog_view::g_showLatest = true;
+    char filePath[MAX_PATH_LENGTH + 1];
+    bool isFilePathSpecified;
+    if (!getFilePath(context, filePath, false, &isFilePathSpecified)) {
+        return SCPI_RES_ERR;
+    }
+
+    if (isFilePathSpecified) {
+        psu::dlog_view::g_showLatest = false;
+        int err;
+        if (!psu::dlog_view::openFile(filePath, &err)) {
+            SCPI_ErrorPush(context, err);
+            return SCPI_RES_ERR;
+        }
+
+    } else {
+        dlog_view::g_showLatest = true;
+        if (!dlog_record::isExecuting()) {
+            if (dlog_record::getLatestFilePath()) {
+                dlog_view::openFile(dlog_record::getLatestFilePath());
+            }
+        }
+    }
+
     psu::gui::pushPage(PAGE_ID_DLOG_VIEW);
     return SCPI_RES_OK;
 #else
diff --git a/src/eez/modules/psu/scpi/dlog.cpp b/src/eez/modules/psu/scpi/dlog.cpp
index 5a666e10f..fb12f0778 100644
--- a/src/eez/modules/psu/scpi/dlog.cpp
+++ b/src/eez/modules/psu/scpi/dlog.cpp
@@ -229,7 +229,7 @@ scpi_result_t scpi_cmd_senseDlogTimeQ(scpi_t *context) {
     return SCPI_RES_OK;
 }
 
-scpi_result_t scpi_cmd_senseDlogTraceComment(scpi_t *context) {
+scpi_result_t scpi_cmd_senseDlogTraceRemark(scpi_t *context) {
     if (!dlog_record::isIdle()) {
         SCPI_ErrorPush(context, SCPI_ERROR_CANNOT_CHANGE_TRANSIENT_TRIGGER);
         return SCPI_RES_ERR;
@@ -252,7 +252,7 @@ scpi_result_t scpi_cmd_senseDlogTraceComment(scpi_t *context) {
     return SCPI_RES_OK;
 }
 
-scpi_result_t scpi_cmd_senseDlogTraceCommentQ(scpi_t *context) {
+scpi_result_t scpi_cmd_senseDlogTraceRemarkQ(scpi_t *context) {
     SCPI_ResultText(context, dlog_record::g_parameters.comment);
     return SCPI_RES_OK;
 }
diff --git a/src/eez/modules/psu/scpi/params.cpp b/src/eez/modules/psu/scpi/params.cpp
index 09538822f..b03f39f8c 100644
--- a/src/eez/modules/psu/scpi/params.cpp
+++ b/src/eez/modules/psu/scpi/params.cpp
@@ -204,8 +204,6 @@ uint32_t param_channels(scpi_t *context, scpi_parameter_t *parameter, scpi_bool_
 }
 
 Channel *set_channel_from_command_number(scpi_t *context) {
-    scpi_psu_t *psu_context = (scpi_psu_t *)context->user_context;
-
     int32_t channelIndex;
     SCPI_CommandNumbers(context, &channelIndex, 1, -1);
     if (channelIndex != -1) {
@@ -734,7 +732,7 @@ void cleanupPath(char *filePath) {
     *q = 0;
 }
 
-bool getFilePath(scpi_t *context, char *filePath, bool mandatory) {
+bool getFilePath(scpi_t *context, char *filePath, bool mandatory, bool *isParameterSpecified) {
     scpi_psu_t *psuContext = (scpi_psu_t *)context->user_context;
 
     const char *filePathParam;
@@ -763,11 +761,17 @@ bool getFilePath(scpi_t *context, char *filePath, bool mandatory) {
             strncpy(filePath + currentDirectoryLen + 1, filePathParam, filePathParamLen);
             filePath[filePathLen] = 0;
         }
+        if (isParameterSpecified) {
+            *isParameterSpecified = true;
+        }
     } else {
         if (SCPI_ParamErrorOccurred(context)) {
             return false;
         }
         strcpy(filePath, psuContext->currentDirectory);
+        if (isParameterSpecified) {
+            *isParameterSpecified = false;
+        }
     }
 
     cleanupPath(filePath);
diff --git a/src/eez/modules/psu/scpi/params.h b/src/eez/modules/psu/scpi/params.h
index 622e30634..a04cfac18 100644
--- a/src/eez/modules/psu/scpi/params.h
+++ b/src/eez/modules/psu/scpi/params.h
@@ -63,7 +63,8 @@ bool get_profile_location_param(scpi_t *context, int &location, bool all_locatio
 void outputOnTime(scpi_t* context, uint32_t time);
 bool checkPassword(scpi_t *context, const char *againstPassword);
 
-bool getFilePath(scpi_t *context, char *filePath, bool mandatory);
+// returns current directory if parameter is not specified
+bool getFilePath(scpi_t *context, char *filePath, bool mandatory, bool *isParameterSpecified = nullptr);
 
 }
 }
diff --git a/src/eez/scpi/commands_simulator.h b/src/eez/scpi/commands_simulator.h
index 42851fd47..b346ea925 100644
--- a/src/eez/scpi/commands_simulator.h
+++ b/src/eez/scpi/commands_simulator.h
@@ -163,7 +163,8 @@
     SCPI_COMMAND("SENSe:DLOG:TRACe:Y:SCALe", scpi_cmd_senseDlogTraceYScale) \
     SCPI_COMMAND("SENSe:DLOG:TRACe:Y:SCALe?", scpi_cmd_senseDlogTraceYScaleQ) \
     SCPI_COMMAND("SENSe:DLOG:TRACe[:DATA]", scpi_cmd_senseDlogTraceData) \
-    SCPI_COMMAND("SENSe:DLOG:TRACe:COMMent", scpi_cmd_senseDlogTraceComment) \
+    SCPI_COMMAND("SENSe:DLOG:TRACe:REMark", scpi_cmd_senseDlogTraceRemark) \
+    SCPI_COMMAND("SENSe:DLOG:TRACe:REMark?", scpi_cmd_senseDlogTraceRemarkQ) \
     SCPI_COMMAND("[SOURce#]:CURRent:LIMit[:POSitive][:IMMediate][:AMPLitude]", scpi_cmd_sourceCurrentLimitPositiveImmediateAmplitude) \
     SCPI_COMMAND("[SOURce#]:CURRent:LIMit[:POSitive][:IMMediate][:AMPLitude]?", scpi_cmd_sourceCurrentLimitPositiveImmediateAmplitudeQ) \
     SCPI_COMMAND("[SOURce#]:CURRent:MODE", scpi_cmd_sourceCurrentMode) \
diff --git a/src/eez/scpi/commands_stm32.h b/src/eez/scpi/commands_stm32.h
index 42851fd47..b346ea925 100644
--- a/src/eez/scpi/commands_stm32.h
+++ b/src/eez/scpi/commands_stm32.h
@@ -163,7 +163,8 @@
     SCPI_COMMAND("SENSe:DLOG:TRACe:Y:SCALe", scpi_cmd_senseDlogTraceYScale) \
     SCPI_COMMAND("SENSe:DLOG:TRACe:Y:SCALe?", scpi_cmd_senseDlogTraceYScaleQ) \
     SCPI_COMMAND("SENSe:DLOG:TRACe[:DATA]", scpi_cmd_senseDlogTraceData) \
-    SCPI_COMMAND("SENSe:DLOG:TRACe:COMMent", scpi_cmd_senseDlogTraceComment) \
+    SCPI_COMMAND("SENSe:DLOG:TRACe:REMark", scpi_cmd_senseDlogTraceRemark) \
+    SCPI_COMMAND("SENSe:DLOG:TRACe:REMark?", scpi_cmd_senseDlogTraceRemarkQ) \
     SCPI_COMMAND("[SOURce#]:CURRent:LIMit[:POSitive][:IMMediate][:AMPLitude]", scpi_cmd_sourceCurrentLimitPositiveImmediateAmplitude) \
     SCPI_COMMAND("[SOURce#]:CURRent:LIMit[:POSitive][:IMMediate][:AMPLitude]?", scpi_cmd_sourceCurrentLimitPositiveImmediateAmplitudeQ) \
     SCPI_COMMAND("[SOURce#]:CURRent:MODE", scpi_cmd_sourceCurrentMode) \