The TwinCAT PROFINET RT Device (slave) is a supplement that turns any PC-based controller with an Intel? chipset and the real-time Ethernet driver developed by Beckhoff into a PROFINET RT device. By installing the TS6270 supplement, an Ethernet interface is turned into a PROFINET slave. The supplement can be used on PCs and Embedded PCs. PROFINET can also be tunnelled via EtherCAT in conjunction with the EL6631 PROFINET terminal for the EtherCAT I/O system. This way, any EtherCAT network can exchange data with PROFINET RT controllers. When using the EL6631, the TwinCAT PROFINET RT Device supplement is not necessary.