diff --git a/script/Marco/power-supply.py b/script/Marco/power-supply.py
index 29edcdf..1d2a28a 100644
--- a/script/Marco/power-supply.py
+++ b/script/Marco/power-supply.py
@@ -33,7 +33,7 @@ for setpoint1 in frange(0.0, 120.0, 1.0, True):
 #Dimension 1
 #LinearPositioner SetVA
 print 'Ramping up power supply'
-for setpoint1 in frange(0.0, 50.0, 10.0, True): #?????????????????? What is the relationship between this FOR loop and the ManualScan?
+for setpoint1 in frange(0.0, 20.0, 10.0, True): #?????????????????? What is the relationship between this FOR loop and the ManualScan?
     if setpoint1 > 50.0 or setpoint1 < 0.0:
         break
     SetVA.put(setpoint1, timeout=None) # TODO: Set appropriate timeout
@@ -60,7 +60,7 @@ SetVA.close()
 ActualVA.close()
 ActualIA.close()
 
-readable =    scan.readables(1)
+readable =    scan.readables
 positions =   scan.writables
 
 threshold = (min(readable) + max(readable))/2