diff --git a/tools/model_generator/genconfig.jar b/tools/model_generator/genconfig.jar
index 5ad24fcb..8b2670b0 100644
Binary files a/tools/model_generator/genconfig.jar and b/tools/model_generator/genconfig.jar differ
diff --git a/tools/model_generator/genmodel.jar b/tools/model_generator/genmodel.jar
index e2b4f93f..9365b2df 100644
Binary files a/tools/model_generator/genmodel.jar and b/tools/model_generator/genmodel.jar differ
diff --git a/tools/model_generator/src/com/libiec61850/scl/DataObjectDefinition.java b/tools/model_generator/src/com/libiec61850/scl/DataObjectDefinition.java
index 29c01204..56c9477c 100644
--- a/tools/model_generator/src/com/libiec61850/scl/DataObjectDefinition.java
+++ b/tools/model_generator/src/com/libiec61850/scl/DataObjectDefinition.java
@@ -28,11 +28,18 @@ import org.w3c.dom.Node;
 public class DataObjectDefinition {
     private String name;
     private String type;
+    private boolean trans = false; /* transient attribute value */
     private int count = 0;
 
     public DataObjectDefinition(Node dataObjectNode) throws SclParserException {
         this.name = ParserUtils.parseAttribute(dataObjectNode, "name");
         this.type = ParserUtils.parseAttribute(dataObjectNode, "type");
+        
+        
+        Boolean isTransient = ParserUtils.parseBooleanAttribute(dataObjectNode, "transient");
+        
+        if (isTransient != null)
+            this.trans = isTransient;
 
         if ((this.type == null) || (this.name == null))
             throw new SclParserException(dataObjectNode, "DO misses required attribute.");
@@ -53,5 +60,9 @@ public class DataObjectDefinition {
     public int getCount() {
         return count;
     }
+    
+    public boolean isTransient() {
+        return trans;
+    }
 
 }
diff --git a/tools/model_generator/src/com/libiec61850/scl/model/DataObject.java b/tools/model_generator/src/com/libiec61850/scl/model/DataObject.java
index c7fae5e0..d61ef972 100644
--- a/tools/model_generator/src/com/libiec61850/scl/model/DataObject.java
+++ b/tools/model_generator/src/com/libiec61850/scl/model/DataObject.java
@@ -42,11 +42,13 @@ public class DataObject implements DataModelNode {
     private List<DataObject> subDataObjects = null;
     private SclType sclType;
     private DataModelNode parent;
+    private boolean trans = false;
 
     public DataObject(DataObjectDefinition doDefinition, TypeDeclarations typeDeclarations, DataModelNode parent) throws SclParserException {
         this.name = doDefinition.getName();
         this.count = doDefinition.getCount();
         this.parent = parent;
+        this.trans = doDefinition.isTransient();
 
         this.dataAttributes = new LinkedList<DataAttribute>();
         this.subDataObjects = new LinkedList<DataObject>();
@@ -109,6 +111,10 @@ public class DataObject implements DataModelNode {
     public int getCount() {
         return count;
     }
+    
+    public boolean isTransient() {
+        return trans;
+    }
 
     @Override
     public DataModelNode getChildByName(String childName) {
diff --git a/tools/model_generator/src/com/libiec61850/tools/DynamicModelGenerator.java b/tools/model_generator/src/com/libiec61850/tools/DynamicModelGenerator.java
index 44d68303..d5ec7ffc 100644
--- a/tools/model_generator/src/com/libiec61850/tools/DynamicModelGenerator.java
+++ b/tools/model_generator/src/com/libiec61850/tools/DynamicModelGenerator.java
@@ -132,7 +132,7 @@ public class DynamicModelGenerator {
         for (DataObject dataObject : logicalNode.getDataObjects()) {
             output.print("DO(" + dataObject.getName() + " " + dataObject.getCount() + "){\n");
 
-            exportDataObject(output, dataObject);
+            exportDataObject(output, dataObject, false);
 
             output.println("}");
         }
@@ -369,27 +369,37 @@ public class DynamicModelGenerator {
         output.println("}");
     }
 
-    private void exportDataObject(PrintStream output, DataObject dataObject) {
+    private void exportDataObject(PrintStream output, DataObject dataObject, boolean isTransient) {
+        
+        if (dataObject.isTransient())
+            isTransient = true;
+        
         for (DataObject subDataObject : dataObject.getSubDataObjects()) {
             output.print("DO(" + subDataObject.getName() + " " + subDataObject.getCount() + "){\n");
 
-            exportDataObject(output, subDataObject);
+            exportDataObject(output, subDataObject, isTransient);
 
             output.println("}");
         }
 
         for (DataAttribute dataAttribute : dataObject.getDataAttributes()) {
-            exportDataAttribute(output, dataAttribute);
+            exportDataAttribute(output, dataAttribute, isTransient);
         }
     }
 
-    private void exportDataAttribute(PrintStream output, DataAttribute dataAttribute) {
+    private void exportDataAttribute(PrintStream output, DataAttribute dataAttribute, boolean isTransient) {
 
         output.print("DA(" + dataAttribute.getName() + " ");
         output.print(dataAttribute.getCount() + " ");
         output.print(dataAttribute.getType().getIntValue() + " ");
         output.print(dataAttribute.getFc().getIntValue() + " ");
-        output.print(dataAttribute.getTriggerOptions().getIntValue() + " ");
+        
+        int trgOpsVal = dataAttribute.getTriggerOptions().getIntValue();
+        
+        if (isTransient)
+            trgOpsVal += 128;
+        
+        output.print(trgOpsVal + " ");
         
         Long sAddr = null;
         
@@ -471,7 +481,7 @@ public class DynamicModelGenerator {
             output.println("{");
 
             for (DataAttribute subDataAttribute : dataAttribute.getSubDataAttributes()) {
-                exportDataAttribute(output, subDataAttribute);
+                exportDataAttribute(output, subDataAttribute, isTransient);
             }
 
             output.println("}");
diff --git a/tools/model_generator/src/com/libiec61850/tools/StaticModelGenerator.java b/tools/model_generator/src/com/libiec61850/tools/StaticModelGenerator.java
index c17b86a4..144c23a0 100644
--- a/tools/model_generator/src/com/libiec61850/tools/StaticModelGenerator.java
+++ b/tools/model_generator/src/com/libiec61850/tools/StaticModelGenerator.java
@@ -588,7 +588,7 @@ public class StaticModelGenerator {
 
             cOut.println("};\n");
 
-            printDataObjectDefinitions(lnName, logicalNode.getDataObjects(), null);
+            printDataObjectDefinitions(lnName, logicalNode.getDataObjects(), null, false);
 
             printReportControlBlocks(lnName, logicalNode);
             
@@ -604,7 +604,7 @@ public class StaticModelGenerator {
         }
     }
 
-    private void printDataObjectDefinitions(String lnName, List<DataObject> dataObjects, String dataAttributeSibling) {
+    private void printDataObjectDefinitions(String lnName, List<DataObject> dataObjects, String dataAttributeSibling, boolean isTransient) {
         for (int i = 0; i < dataObjects.size(); i++) {
             DataObject dataObject = dataObjects.get(i);
 
@@ -644,17 +644,26 @@ public class StaticModelGenerator {
             cOut.println("    " + dataObject.getCount());
 
             cOut.println("};\n");
+            
+            boolean isDoTransient = false;
+            
+            if (isTransient)
+                isDoTransient = true;
+            else {
+                if (dataObject.isTransient())
+                    isDoTransient = true;
+            }
 
             if (dataObject.getSubDataObjects() != null)
-                printDataObjectDefinitions(doName, dataObject.getSubDataObjects(), firstDataAttributeName);
+                printDataObjectDefinitions(doName, dataObject.getSubDataObjects(), firstDataAttributeName, isDoTransient);
 
             if (dataObject.getDataAttributes() != null)
-                printDataAttributeDefinitions(doName, dataObject.getDataAttributes());
+                printDataAttributeDefinitions(doName, dataObject.getDataAttributes(), isDoTransient);
 
         }
     }
 
-    private void printDataAttributeDefinitions(String doName, List<DataAttribute> dataAttributes) {
+    private void printDataAttributeDefinitions(String doName, List<DataAttribute> dataAttributes, boolean isTransient) {
         for (int i = 0; i < dataAttributes.size(); i++) {
             DataAttribute dataAttribute = dataAttributes.get(i);
 
@@ -709,6 +718,9 @@ public class StaticModelGenerator {
 
             if (trgOps.isQchg())
                 cOut.print(" + TRG_OPT_QUALITY_CHANGED");
+            
+            if (isTransient)
+                cOut.print(" + TRG_OPT_TRANSIENT");
 
             cOut.println(",");
 
@@ -731,7 +743,7 @@ public class StaticModelGenerator {
             cOut.println("};\n");
 
             if (dataAttribute.getSubDataAttributes() != null) 	
-                printDataAttributeDefinitions(daName, dataAttribute.getSubDataAttributes());
+                printDataAttributeDefinitions(daName, dataAttribute.getSubDataAttributes(), isTransient);
             
             DataModelValue value = dataAttribute.getValue();