diff -r ace92afe9100 -r d3c6c4ab8b28 PLCControler.py
--- a/PLCControler.py	Thu Nov 15 23:49:08 2012 +0100
+++ b/PLCControler.py	Fri Nov 23 13:36:47 2012 +0100
@@ -1677,6 +1677,10 @@
                 return basetype_content["name"] == "enum"
         return False
 
+    def IsNumType(self, type, debug = False):
+        return self.IsOfType(type, "ANY_NUM", debug) or\
+               self.IsOfType(type, "ANY_BIT", debug)
+            
     def GetDataTypeRange(self, type, debug = False):
         if type in DataTypeRange:
             return DataTypeRange[type]