diff --git a/dotnet/IEC61850forCSharp/IEC61850ServerAPI.cs b/dotnet/IEC61850forCSharp/IEC61850ServerAPI.cs
index 7aa303ba..69beb84c 100644
--- a/dotnet/IEC61850forCSharp/IEC61850ServerAPI.cs
+++ b/dotnet/IEC61850forCSharp/IEC61850ServerAPI.cs
@@ -2214,6 +2214,23 @@ namespace IEC61850
             [DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
             static extern void IedServer_setConnectionIndicationHandler(IntPtr self, InternalConnectionHandler handler, IntPtr parameter);
 
+            public delegate void RCBWriteAccessHandler(IedServer iedServer, string domainName, string rcbName, string elementName, MmsValue value, ClientConnection clientConnection, object parameter);
+
+            private RCBWriteAccessHandler rcbWriteAccessHandler = null;
+            private object rcbWriteAccessHandlerParameter = null;
+
+            public void SetRCBWriteAccessHandler(RCBWriteAccessHandler handler, object parameter)
+            {
+                rcbWriteAccessHandler = handler;
+                rcbWriteAccessHandlerParameter = parameter;
+            }
+
+            [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+            private delegate void InternalRCBWriteAccessHandler(IntPtr iedServer, string domainName, string rcbName, string elementName, IntPtr value, IntPtr clientConnection, IntPtr parameter);
+
+            [DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
+            static extern void IedServer_setRCBWriteAccessHandler(IntPtr self, InternalRCBWriteAccessHandler handler, IntPtr parameter);
+
             [DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
             static extern void IedServer_enableGoosePublishing(IntPtr self);
 
@@ -2400,6 +2417,18 @@ namespace IEC61850
 
             internal Dictionary<IntPtr, ClientConnection> clientConnections = new Dictionary<IntPtr, ClientConnection> ();
 
+            private void RCBWriteAccessHandlerImpl(IntPtr iedServer, string domainName, string rcbName, string elementName, IntPtr value, IntPtr clientConnection, IntPtr parameter)
+            {
+                if (rcbWriteAccessHandler != null)
+                {
+                    MmsValue v = new MmsValue(value);
+
+                    ClientConnection con = new ClientConnection(clientConnection);
+
+                    rcbWriteAccessHandler(this, domainName, rcbName, elementName, v, con, rcbWriteAccessHandlerParameter);
+                }
+            }
+
             /* store IedModel instance to prevent garbage collector */
             private IedModel iedModel = null;
 
@@ -2432,6 +2461,7 @@ namespace IEC61850
             }
 
             private InternalConnectionHandler internalConnectionHandler = null;
+            private InternalRCBWriteAccessHandler internalRCBWriteAccessHandler = null;
 
             /// <summary>
             /// Sets the local ip address for listening
@@ -2462,6 +2492,11 @@ namespace IEC61850
 
                 IedServer_setConnectionIndicationHandler (self, internalConnectionHandler, IntPtr.Zero);
 
+                if (internalRCBWriteAccessHandler == null)
+                    internalRCBWriteAccessHandler = new InternalRCBWriteAccessHandler(RCBWriteAccessHandlerImpl);
+
+                IedServer_setRCBWriteAccessHandler(self, internalRCBWriteAccessHandler, IntPtr.Zero);
+
                 IedServer_start(self, tcpPort);
             }
 
@@ -2479,6 +2514,7 @@ namespace IEC61850
             {
                 IedServer_stop(self);
                 internalConnectionHandler = null;
+                internalRCBWriteAccessHandler = null;
             }
 
             /// <summary>
@@ -2506,6 +2542,7 @@ namespace IEC61850
                         IedServer_destroy(self);
                         self = IntPtr.Zero;
                         internalConnectionHandler = null;
+                        internalRCBWriteAccessHandler = null;
                         this.iedModel = null;
                     }
                 }
diff --git a/src/iec61850/inc/iec61850_server.h b/src/iec61850/inc/iec61850_server.h
index 48c79533..52e1723a 100644
--- a/src/iec61850/inc/iec61850_server.h
+++ b/src/iec61850/inc/iec61850_server.h
@@ -743,6 +743,28 @@ typedef void (*IedConnectionIndicationHandler) (IedServer self, ClientConnection
 LIB61850_API void
 IedServer_setConnectionIndicationHandler(IedServer self, IedConnectionIndicationHandler handler, void* parameter);
 
+/**
+ * \brief User provided callback function that is invoked whenever a client writes RCB element value.
+ *
+ * \param self the instance of IedServer where the connection event occured.
+ * \param domainName the domain name.
+ * \param rcbName the RCB name.
+ * \param elementName the element name.
+ * \param value the new value to write.
+ * \param connection the connect object
+ * \param parameter a user provided parameter
+ */
+typedef void (*IedRCBWriteAccessHandler) (IedServer self, char* domainName, char* rcbName, char* elementName, MmsValue* value, ClientConnection connection, void* parameter);
+
+/**
+ * \brief set a callback function that will be called on write events.
+ *
+ * \param self the instance of IedServer to operate on.
+ * \param handler the user provided callback function
+ * \param parameter a user provided parameter that is passed to the callback function.
+ */
+LIB61850_API void
+IedServer_setRCBWriteAccessHandler(IedServer self, IedRCBWriteAccessHandler handler, void* parameter);
 
 /**@}*/
 
diff --git a/src/iec61850/inc_private/mms_mapping.h b/src/iec61850/inc_private/mms_mapping.h
index 63ec5742..55161097 100644
--- a/src/iec61850/inc_private/mms_mapping.h
+++ b/src/iec61850/inc_private/mms_mapping.h
@@ -139,6 +139,9 @@ MmsMapping_freeDynamicallyCreatedDataSet(DataSet* dataSet);
 LIB61850_INTERNAL void
 MmsMapping_setConnectionIndicationHandler(MmsMapping* self, IedConnectionIndicationHandler handler, void* parameter);
 
+LIB61850_INTERNAL void
+MmsMapping_setRCBWriteAccessHandler(MmsMapping* self, IedRCBWriteAccessHandler handler, void* parameter);
+
 LIB61850_INTERNAL void
 MmsMapping_setLogStorage(MmsMapping* self, const char* logRef, LogStorage logStorage);
 
diff --git a/src/iec61850/inc_private/mms_mapping_internal.h b/src/iec61850/inc_private/mms_mapping_internal.h
index 79c9e793..d05cf717 100644
--- a/src/iec61850/inc_private/mms_mapping_internal.h
+++ b/src/iec61850/inc_private/mms_mapping_internal.h
@@ -332,6 +332,9 @@ struct sMmsMapping {
 
     IedServer_RCBEventHandler rcbEventHandler;
     void* rcbEventHandlerParameter;
+
+    IedRCBWriteAccessHandler rcbWriteAccessHandler;
+    void* rcbWriteAccessHandlerParameter;
 };
 
 #endif /* MMS_MAPPING_INTERNAL_H_ */
diff --git a/src/iec61850/server/impl/ied_server.c b/src/iec61850/server/impl/ied_server.c
index 6534fb7b..41970eb0 100644
--- a/src/iec61850/server/impl/ied_server.c
+++ b/src/iec61850/server/impl/ied_server.c
@@ -1570,6 +1570,12 @@ IedServer_setConnectionIndicationHandler(IedServer self, IedConnectionIndication
     MmsMapping_setConnectionIndicationHandler(self->mmsMapping, handler, parameter);
 }
 
+void
+IedServer_setRCBWriteAccessHandler(IedServer self, IedRCBWriteAccessHandler handler, void* parameter)
+{
+    MmsMapping_setRCBWriteAccessHandler(self->mmsMapping, handler, parameter);
+}
+
 MmsValue*
 IedServer_getFunctionalConstrainedData(IedServer self, DataObject* dataObject, FunctionalConstraint fc)
 {
diff --git a/src/iec61850/server/mms_mapping/mms_mapping.c b/src/iec61850/server/mms_mapping/mms_mapping.c
index ff7a490f..a42de343 100644
--- a/src/iec61850/server/mms_mapping/mms_mapping.c
+++ b/src/iec61850/server/mms_mapping/mms_mapping.c
@@ -2618,6 +2618,13 @@ mmsWriteHandler(void* parameter, MmsDomain* domain,
                     if (strncmp(variableId, rc->name, variableIdLen) == 0) {
                         char* elementName = variableId + rcNameLen + 1;
 
+                        ClientConnection clientConnection = private_IedServer_getClientConnectionByHandle(self->iedServer, connection);
+
+                        /* call user provided handler function */
+                        if (self->rcbWriteAccessHandler != NULL)
+                            self->rcbWriteAccessHandler(self->iedServer, domain->domainName, rc->name, elementName, value, clientConnection,
+                                self->rcbWriteAccessHandlerParameter);
+
                         return Reporting_RCBWriteAccessHandler(self, rc, elementName, value, connection);
                     }
                 }
@@ -3473,6 +3480,13 @@ MmsMapping_setConnectionIndicationHandler(MmsMapping* self, IedConnectionIndicat
     self->connectionIndicationHandlerParameter = parameter;
 }
 
+void
+MmsMapping_setRCBWriteAccessHandler(MmsMapping* self, IedRCBWriteAccessHandler handler, void* parameter)
+{
+    self->rcbWriteAccessHandler = handler;
+    self->rcbWriteAccessHandlerParameter = parameter;
+}
+
 static bool
 isMemberValueRecursive(MmsValue* container, MmsValue* value)
 {