diff --git a/script/local.py b/script/local.py
index 85d3bdf..45f9571 100644
--- a/script/local.py
+++ b/script/local.py
@@ -49,41 +49,43 @@ def trigger_detectors(position, scan):
     pix_is_on = pixel in scan.readables
     mythen.abort()    
     open_shutter()    
-    if (count_time != 0):        
+    try:
+        if (count_time != 0):        
+            if pix_is_on:
+              pixel.set_expose(count_time)
+              pixel.start()
+            
+            if (count_time > 0):
+                mythen.set_acquire_time(count_time)
+                mythen.set_acquire_mode("Single")
+                mythen.start()
+            else:
+                print "Preset monitor counting is not supported\!"
+       
+        #waitcount
         if pix_is_on:
-          pixel.set_expose(count_time)
-          pixel.start()
-        
-        if (count_time > 0):
-            mythen.set_acquire_time(count_time)
-            mythen.set_acquire_mode("Single")
-            mythen.start()
-        else:
-            print "Preset monitor counting is not supported\!"
-   
-    #waitcount
-    if pix_is_on:
-      pixel.wait_finished()
-
-    i = 0  
-    while (mythen.is_acquiring()):
-      time.sleep (0.05)
-      i += 1
-      if (i * 0.05 >= count_time * 2):
-        print "MYTHEN Izero times out, status: "  + str(mythen.get_status())
-        break
-
-
-    #count_end()
-    # update the IMAGE_FILENAME and COUNT_ID variables
-    if pix_is_on:
-      image_filename = pixel.get_image_filename()
-      count_id = pixel.doUpdate()    
-      #pixel.logwrite() 
-    else :
-        image_filename = None
-        count_id =  + 1
-    close_shutter()    
+          pixel.wait_finished()
+    
+        i = 0  
+        while (mythen.is_acquiring()):
+          time.sleep (0.05)
+          i += 1
+          if (i * 0.05 >= count_time * 2):
+            print "MYTHEN Izero times out, status: "  + str(mythen.get_status())
+            break
+    
+    
+        #count_end()
+        # update the IMAGE_FILENAME and COUNT_ID variables
+        if pix_is_on:
+          image_filename = pixel.get_image_filename()
+          count_id = pixel.doUpdate()    
+          #pixel.logwrite() 
+        else :
+            image_filename = None
+            count_id =  + 1
+    finally:
+        close_shutter()    
 
 
 def save_metadata(rec):