Modify the interface of the digital attenuator to match the one use for others...

Modify the interface of the digital attenuator to match the one use for others instruments (add the cryostat parameter).

Instruments/DA.py

@@ -47,7 +47,7 @@ class DA(object):
         errors you can try to set it to False
     """
 
-    def __init__(self, id_string, channel=0, driver=None, database=True):
+    def __init__(self, id_string, cryostat, channel=0, driver=None, database=True):
 
         # Device parameters ####################################################
         try:
@@ -59,6 +59,7 @@ class DA(object):
                 self.ip = id_string
             else:
                 raise Exception('DA not in IPList. Please specify driver')
+        self.CryoID = cryostat
         self.ch = channel
         self.id = id_string