diff --git a/portail_coulissant/porcou.py b/portail_coulissant/porcou.py
index 3ee31cc..f9f23be 100644
--- a/portail_coulissant/porcou.py
+++ b/portail_coulissant/porcou.py
@@ -86,6 +86,7 @@ def  init(cont):
     scene.objects['Recepteur IR']['description']="Capteur barrage IR  (absence d\"obstacle) : ir_recep()"
     
     system_init() # Initialisation du système
+    scene.objects['System']['plot_proc'] = None # Initialisation du processus plot 
 
 def get_pin_config():
     return pin_config
diff --git a/portail_coulissant/porcou_cmd.py b/portail_coulissant/porcou_cmd.py
index 4098cc7..53621bc 100644
--- a/portail_coulissant/porcou_cmd.py
+++ b/portail_coulissant/porcou_cmd.py
@@ -51,11 +51,12 @@ def commandes():
     # mot_f(False)
     # gyr(False)
 
-    # Ecrire votre code ici ...
-    gyr(True) # Activer le gyrophare
-    plot()
+    plot(['Led'])
     while True:
-        pass
+        gyr(True)
+        tempo(0.25)
+        gyr(False)
+        tempo(0.25)
  
     fin() # A garder
 
diff --git a/portail_coulissant/porcou_lib.py b/portail_coulissant/porcou_lib.py
index 4017c6b..3b9721d 100644
--- a/portail_coulissant/porcou_lib.py
+++ b/portail_coulissant/porcou_lib.py
@@ -106,7 +106,7 @@ def stop():
     if scene.objects['System']['twins']:
         serial_close(scene.objects['System']['board'])
         time.sleep(1)
-    scene.objects['System']['plot']=False
+    scene.objects['System']['plot_draw']=False
     thread_cmd_stop()
 
 # Fin naturelle
@@ -114,7 +114,7 @@ def end():
     if scene.objects['System']['twins']:
         serial_close(scene.objects['System']['board'])
         time.sleep(1)
-    scene.objects['System']['plot']=False
+    scene.objects['System']['plot_draw']=False
     thread_cmd_end()
 
 def fin():
@@ -128,18 +128,52 @@ def quit():
 ###############################################################################
 
 # Lancement du grapheur
-def plot():
+def plot(data):
     # subprocess.run([sys.executable, os.path.join(os.getcwd(), "twin_plot.py")], , stdin=subprocess.PIPE) # Process bloquant
+
+    # Terminer le processus précédent
+    if scene.objects['System']['plot_proc'] is not None:
+        if scene.objects['System']['plot_proc'].poll()==None:
+            scene.objects['System']['plot_proc'].terminate()
+    scene.objects['System']['plot_draw'] = True
+    scene.objects['System']['plot_time'] = 0
+    scene.objects['System']['plot_data'] = data # FIXME : conversion mémonique -> 3D 
     scene.objects['System']['plot_proc'] = subprocess.Popen([sys.executable, os.path.join(os.getcwd(), "twin_plot.py")], stdin=subprocess.PIPE, encoding = 'utf8')
     scene.objects['System']['plot']=True
 
-# Envoi des données (Pipe)
+# Communication avec Qt5
 def plot_maj(cont):
     if cont.sensors['Plot'].positive :
-        time_send = str(scene.objects['System']['plot_time'])+'\n'
-        if scene.objects['System']['plot_proc'].poll()==None:
-            # scene.objects['System']['plot_proc'].communicate(input=time_send.encode())[0] # Bloquant
-            scene.objects['System']['plot_proc'].stdin.write(time_send)
-        else:
-            print ("Stop")
-            scene.objects['System']['plot']=False
+
+        # Affichage du graphique
+        if scene.objects['System']['plot_draw']:
+
+            # Préparation du message
+            # FIXME : ajouter les valeurs réelles et valeurs numériques ('activated_real')
+            msg=str(scene.objects['System']['plot_time'])
+            for obj in scene.objects['System']['plot_data']:
+                if scene.objects[obj]['activated']:
+                    msg = msg+",1"
+                else:
+                    msg = msg+",0"
+            msg = msg+"\n"
+
+            # Envoi (Pipe)
+            if scene.objects['System']['plot_proc'].poll()==None:
+                # scene.objects['System']['plot_proc'].communicate(input=time_send.encode())[0] # Communication bloquante
+                scene.objects['System']['plot_proc'].stdin.write(msg)
+            else:
+                print ("Stop")
+                scene.objects['System']['plot']=False
+                scene.objects['System']['plot_draw'] =False
+                scene.objects['System']['plot_proc'].terminate()
+            
+        # Arret de l'affichage du graphique
+        else :
+            if scene.objects['System']['plot_proc'].poll()==None:
+                pass
+            else:
+                print ("Stop")
+                scene.objects['System']['plot']=False
+                scene.objects['System']['plot_draw'] =False
+                scene.objects['System']['plot_proc'].terminate()
diff --git a/portail_coulissant/portail_coulissant-17.blend b/portail_coulissant/portail_coulissant-17.blend
index 49fcf14..ccb2ac7 100644
Binary files a/portail_coulissant/portail_coulissant-17.blend and b/portail_coulissant/portail_coulissant-17.blend differ