diff --git a/script/test/MaximumSearch.py b/script/test/MaximumSearch.py
index 426a1dbc..9d2ce273 100644
--- a/script/test/MaximumSearch.py
+++ b/script/test/MaximumSearch.py
@@ -1,3 +1,26 @@
+####################################################################################################
+# Simulated Devices
+####################################################################################################
+
+class AnalogOutput(RegisterBase):    
+    def doRead(self):
+        return self.val if hasattr(self, 'val') else 0.0 
+
+    def doWrite(self, val):
+        self.val = val
+
+class AnalogInput(ReadonlyRegisterBase):
+    def doRead(self):
+        time.sleep(0.001)
+        self.val = to_array(self.calc(), 'd')
+        return self.val
+        
+        
+#Defintion
+add_device(AnalogOutput("ao1"), True)
+add_device(AnalogOutput("ao2"), True)
+
+
 class FitnessFunction(ReadonlyRegisterBase):
     def doRead(self):
         return 1000.0 - (math.pow(ao1.take()-18, 2) + math.pow(ao2.take()-6, 2))