diff --git a/webserver/core/hardware_layers/blank.cpp b/webserver/core/hardware_layers/blank.cpp
index 1bdf091..62b2a20 100755
--- a/webserver/core/hardware_layers/blank.cpp
+++ b/webserver/core/hardware_layers/blank.cpp
@@ -41,6 +41,14 @@ void initializeHardware()
 {
 }
 
+//-----------------------------------------------------------------------------
+// This function is called by the main OpenPLC routine when it is finalizing.
+// Resource clearing procedures should be here.
+//-----------------------------------------------------------------------------
+void finalizeHardware()
+{
+}
+
 //-----------------------------------------------------------------------------
 // This function is called by the OpenPLC in a loop. Here the internal buffers
 // must be updated to reflect the actual Input state. The mutex bufferLock
diff --git a/webserver/core/hardware_layers/fischertechnik.cpp b/webserver/core/hardware_layers/fischertechnik.cpp
index 34996db..4b02783 100755
--- a/webserver/core/hardware_layers/fischertechnik.cpp
+++ b/webserver/core/hardware_layers/fischertechnik.cpp
@@ -58,6 +58,14 @@ void initializeHardware()
 	}
 }
 
+//-----------------------------------------------------------------------------
+// This function is called by the main OpenPLC routine when it is finalizing.
+// Resource clearing procedures should be here.
+//-----------------------------------------------------------------------------
+void finalizeHardware()
+{
+}
+
 void sendOutput(unsigned char *sendBytes, unsigned char *recvBytes)
 {
 	long serialTimer;
diff --git a/webserver/core/hardware_layers/neuron.cpp b/webserver/core/hardware_layers/neuron.cpp
index 5613fbc..4916470 100755
--- a/webserver/core/hardware_layers/neuron.cpp
+++ b/webserver/core/hardware_layers/neuron.cpp
@@ -269,6 +269,14 @@ void initializeHardware()
     searchForIO();
 }
 
+//-----------------------------------------------------------------------------
+// This function is called by the main OpenPLC routine when it is finalizing.
+// Resource clearing procedures should be here.
+//-----------------------------------------------------------------------------
+void finalizeHardware()
+{
+}
+
 //-----------------------------------------------------------------------------
 // This function is called by the OpenPLC in a loop. Here the internal buffers
 // must be updated to reflect the actual Input state. The mutex bufferLock
diff --git a/webserver/core/hardware_layers/pixtend.cpp b/webserver/core/hardware_layers/pixtend.cpp
index df1a113..c2097ff 100755
--- a/webserver/core/hardware_layers/pixtend.cpp
+++ b/webserver/core/hardware_layers/pixtend.cpp
@@ -822,6 +822,14 @@ void initializeHardware()
 	pthread_create(&piXtend_thread, NULL, updateLocalBuffers, NULL);
 }
 
+//-----------------------------------------------------------------------------
+// This function is called by the main OpenPLC routine when it is finalizing.
+// Resource clearing procedures should be here.
+//-----------------------------------------------------------------------------
+void finalizeHardware()
+{
+}
+
 //-----------------------------------------------------------------------------
 // This function is called by the OpenPLC in a loop. Here the internal buffers
 // must be updated to reflect the actual Input state. The mutex buffer_lock
diff --git a/webserver/core/hardware_layers/pixtend2l.cpp b/webserver/core/hardware_layers/pixtend2l.cpp
index 072c7e4..90e5687 100644
--- a/webserver/core/hardware_layers/pixtend2l.cpp
+++ b/webserver/core/hardware_layers/pixtend2l.cpp
@@ -605,6 +605,14 @@ void initializeHardware()
     pthread_create(&piXtend_thread, NULL, updateLocalBuffers, NULL);
 }
 
+//-----------------------------------------------------------------------------
+// This function is called by the main OpenPLC routine when it is finalizing.
+// Resource clearing procedures should be here.
+//-----------------------------------------------------------------------------
+void finalizeHardware()
+{
+}
+
 //-----------------------------------------------------------------------------
 // This function is called by the OpenPLC in a loop. Here the internal buffers
 // must be updated to reflect the actual Input state. The mutex buffer_lock
diff --git a/webserver/core/hardware_layers/pixtend2s.cpp b/webserver/core/hardware_layers/pixtend2s.cpp
index f8e7218..3afe013 100755
--- a/webserver/core/hardware_layers/pixtend2s.cpp
+++ b/webserver/core/hardware_layers/pixtend2s.cpp
@@ -542,6 +542,14 @@ void initializeHardware()
     pthread_create(&piXtend_thread, NULL, updateLocalBuffers, NULL);
 }
 
+//-----------------------------------------------------------------------------
+// This function is called by the main OpenPLC routine when it is finalizing.
+// Resource clearing procedures should be here.
+//-----------------------------------------------------------------------------
+void finalizeHardware()
+{
+}
+
 //-----------------------------------------------------------------------------
 // This function is called by the OpenPLC in a loop. Here the internal buffers
 // must be updated to reflect the actual Input state. The mutex buffer_lock
diff --git a/webserver/core/hardware_layers/raspberrypi.cpp b/webserver/core/hardware_layers/raspberrypi.cpp
index 4ce6759..8ddcd9f 100755
--- a/webserver/core/hardware_layers/raspberrypi.cpp
+++ b/webserver/core/hardware_layers/raspberrypi.cpp
@@ -99,6 +99,14 @@ void initializeHardware()
 	}
 }
 
+//-----------------------------------------------------------------------------
+// This function is called by the main OpenPLC routine when it is finalizing.
+// Resource clearing procedures should be here.
+//-----------------------------------------------------------------------------
+void finalizeHardware()
+{
+}
+
 //-----------------------------------------------------------------------------
 // This function is called by the OpenPLC in a loop. Here the internal buffers
 // must be updated to reflect the actual state of the input pins. The mutex buffer_lock
diff --git a/webserver/core/hardware_layers/raspberrypi_old.cpp b/webserver/core/hardware_layers/raspberrypi_old.cpp
index 34436ea..2560ae5 100755
--- a/webserver/core/hardware_layers/raspberrypi_old.cpp
+++ b/webserver/core/hardware_layers/raspberrypi_old.cpp
@@ -99,6 +99,14 @@ void initializeHardware()
 	}
 }
 
+//-----------------------------------------------------------------------------
+// This function is called by the main OpenPLC routine when it is finalizing.
+// Resource clearing procedures should be here.
+//-----------------------------------------------------------------------------
+void finalizeHardware()
+{
+}
+
 //-----------------------------------------------------------------------------
 // This function is called by the OpenPLC in a loop. Here the internal buffers
 // must be updated to reflect the actual state of the input pins. The mutex buffer_lock
diff --git a/webserver/core/hardware_layers/simulink.cpp b/webserver/core/hardware_layers/simulink.cpp
index b0b486f..727356b 100755
--- a/webserver/core/hardware_layers/simulink.cpp
+++ b/webserver/core/hardware_layers/simulink.cpp
@@ -168,6 +168,14 @@ void initializeHardware()
 	pthread_create(&thread, NULL, exchangeData, NULL);
 }
 
+//-----------------------------------------------------------------------------
+// This function is called by the main OpenPLC routine when it is finalizing.
+// Resource clearing procedures should be here.
+//-----------------------------------------------------------------------------
+void finalizeHardware()
+{
+}
+
 //-----------------------------------------------------------------------------
 // This function is called by the OpenPLC in a loop. Here the internal buffers
 // must be updated to reflect the actual Input state. The mutex bufferLock
diff --git a/webserver/core/hardware_layers/unipi.cpp b/webserver/core/hardware_layers/unipi.cpp
index 146a992..558324b 100755
--- a/webserver/core/hardware_layers/unipi.cpp
+++ b/webserver/core/hardware_layers/unipi.cpp
@@ -192,6 +192,14 @@ void initializeHardware()
 	pthread_create(&ADCthread, NULL, readAdcThread, NULL);
 }
 
+//-----------------------------------------------------------------------------
+// This function is called by the main OpenPLC routine when it is finalizing.
+// Resource clearing procedures should be here.
+//-----------------------------------------------------------------------------
+void finalizeHardware()
+{
+}
+
 //-----------------------------------------------------------------------------
 // This function is called by the OpenPLC in a loop. Here the internal buffers
 // must be updated to reflect the actual Input state. The mutex buffer_lock
diff --git a/webserver/core/ladder.h b/webserver/core/ladder.h
index 9944476..44b846b 100755
--- a/webserver/core/ladder.h
+++ b/webserver/core/ladder.h
@@ -93,6 +93,7 @@ void updateTime();
 
 //hardware_layer.cpp
 void initializeHardware();
+void finalizeHardware();
 void updateBuffersIn();
 void updateBuffersOut();
 
diff --git a/webserver/core/main.cpp b/webserver/core/main.cpp
index 6436ed4..ab99cea 100755
--- a/webserver/core/main.cpp
+++ b/webserver/core/main.cpp
@@ -281,6 +281,7 @@ int main(int argc,char **argv)
     disableOutputs();
     updateCustomOut();
     updateBuffersOut();
+	finalizeHardware();
     printf("Shutting down OpenPLC Runtime...\n");
     exit(0);
 }