Button Port settings
This feature is presently only enabled for the real-time Ethernet protocol (no EL663x). With this a second PROFINET port and an intelligent switch can thus be realized with a second network card (Intel chipset) . It is intended to repeat this feature x times; however, it is presently limited to one additional port.

In future it will be possible to enable the MRP (Media Redundancy Protocol) function via this menu; various settings can be made for this.