AdsPortOpenEx

Establishes a connection (communication port) to the TwinCAT message router. Unlike with AdsPortOpen, a new ADS port is opened each time. The extended Ads functions have to be used for communicating with this port. The port number returned by AdsPortOpenEx is transferred as parameter to these functions.  If no TwinCAT MessageRouter is present, the AdsPortOpenEx function will fail.

LONG AdsPortOpenEx(
 void
);