diff --git a/script/test/DemoCscanPseudo4.py b/script/test/DemoCscanPseudo4.py
index 6832de7c..2d36a17c 100644
--- a/script/test/DemoCscanPseudo4.py
+++ b/script/test/DemoCscanPseudo4.py
@@ -1,30 +1,33 @@
+import ch.psi.pshell.device.PositionerConfig as PositionerConfig
+import ch.psi.pshell.device.Speedable as Speedable
+
+
 class PseudoMotor(PositionerBase, Speedable):    
-    def __init__(self):
-        PositionerBase.__init__(self)
-        self.readback  = 0.0
-        self.setpoint  = 0.0
+    def __init__(self, name):
+        PositionerBase.__init__(self, name, PositionerConfig())
+        self.rbck  = 0.0
+        self.setp  = 0.0
         self.settime = time.time()
         
     def doRead(self):     
-        self.setpoint
+        return self.setp
         
     def doWrite(self, val):
-        self.settime = time.time()
-        self.setpoint = val
+        self.setp = val
 
-    def doReadReadback(self, val):
-         offset = self.setpoint - self.readback
+    def doReadReadback(self):
+         offset = self.setp - self.rbck
          d = (self.speed * (time.time() - self.settime))
          d = min(d, abs(offset))         
-         self.position = self.readback + d if offset>0 else self.readback -d
-         return self.position
+         self.rbck = self.rbck + d if offset>0 else self.rbck -d
+         return self.rbck
 
     def getSpeed(self):
         return 3.0
         
-positioner =  PseudoMotor()       
+positioner =  PseudoMotor("PseudoMotor")       
 add_device(positioner, True);
 
-show_panel("PseudoMotor")
+show_panel(PseudoMotor)
 cscan(positioner, MachineCurrent, 0, 10, 1.0)