KnowledgeBase/CII.md

@@ -1703,6 +1703,16 @@ Type "help", "copyright", "credits" or "license" for more information.
 'my text'
 ```
 
+… and, to subscribe to a datapoint:
+
+```
+>>> class CB:
+>>>   def new_value(self,value,uri):
+>>>     print ("value:", value.get_value())
+>>> sub = elt.oldb.typesupport.STRING.get_new_subscription_instance(CB())
+>>> oldb.get_data_point(Uri("cii.oldb:/ccs/tst/tmp1")).subscribe(sub)
+```
+
 … and, to delete a datapoint:
 
 ```