check if configured item is available before setting

if neither a property nor a parameter exists for a given
configured item, just an attribute was created

secop/modules.py

@@ -383,11 +383,12 @@ class Module(HasAccessibles):
             try:
                 # this checks also for the proper datatype
                 # note: this will NOT call write_* methods!
-                setattr(self, k, v)
+                if hasattr(self, k):
+                    setattr(self, k, v)
+                    cfgdict.pop(k)
             except (ValueError, TypeError):
                 # self.log.exception(formatExtendedStack())
                 errors.append('module %s, parameter %s: %s' % (self.name, k, e))
-            cfgdict.pop(k)
 
         # Modify units AFTER applying the cfgdict
         for k, v in self.parameters.items():