On 11/12/2013 18:12, Miro Kropáček wrote:
It's a data register.
On some hardware, reading a status or a data register can clear an internal interrupt flag, or something like that.
I don't know the EtherNat hardware, but just in case, I prefer to warn. Anyway, if you carefully tested on a real EtherNat, there is no trouble. -- Vincent Rivière