diff -r 1a14560e10ed -r aca0c83ed82e PLCControler.py
--- a/PLCControler.py	Mon Jun 04 02:04:29 2012 +0200
+++ b/PLCControler.py	Wed Jun 06 16:57:58 2012 +0200
@@ -1964,8 +1964,8 @@
             for instance in element.getinstances():
                 if isinstance(instance, (plcopen.sfcObjects_step, plcopen.commonObjects_connector, plcopen.commonObjects_continuation)):
                     names[instance.getname()] = True
-        i = 1
-        while names.get(name.upper(), False):
+        i = 0
+        while name is None or names.get(name.upper(), False):
             name = (format%i)
             i += 1
         return name
@@ -2020,7 +2020,7 @@
                                         blocktype = instance.gettypeName()
                                         if element_type == "function":
                                             return _("FunctionBlock \"%s\" can't be pasted in a Function!!!")%blocktype
-                                        blockname = self.GenerateNewName(tagname, blockname, "Block%d", debug=debug)
+                                        blockname = self.GenerateNewName(tagname, blockname, "%s%%d"%blocktype, debug=debug)
                                         exclude[blockname] = True
                                         instance.setinstanceName(blockname)
                                         self.AddEditedElementPouVar(tagname, blocktype, blockname)