Setting Up: Profinet Controller/Device - Beckhoff CU2508 Documentation

Commissioning
Fig. 61: Selection of the CU2508 port to be used
The number of available ports (in this case 7) depends on the settings of the CU2508 device (see there).
Fig. 62: Adding the Ethernet devices
Subsequently the required Ethernet couplers/boxes/drives can be manually added or scanned. Before a
scan TwinCAT should be restarted once in the Config/FreeRun mode.
4.2.6

Setting up: PROFINET Controller/Device

The usage of the PROFINET real-time protocol is possible for the device (slave) or controller (master)
supplement with the CU2508. However, you can use only one controller or device, if they are in a unique
network. If the networks a physically separated, it is possible to use more than one controller or device
supplement with one CU2508. This is due to the fact, that the CU2508 uses only one MAC address. The
function of several PROFINET segments can only be secured, if the MAC address in a network segment is
unique and there is no connection to other networks.
Availability
This function can be used from TwinCAT 2.11R3 build 2234.
RT Ethernet adapter settings
Enable the lower setting under the Ports tab (radio button "EtherCAT Switch Link Protocol"); all other settings
should be left at default.
46 Version: 2.6 Real-time Ethernet port multiplier