Because no body answer my question
, I contact directly the Moeller Support Team and this was their answer:
"Dear Mr. Daly,
thank you for your inquiry.
It is a software limitation, but the easy has a resolution of 0,01.
You can find complementary information about our products, our replies
to FAQ as well as programme samples in the Internet under
www.moeller.net <http://www.moeller.net>."