Illustration Multi Core

While the real-time runtime has direct access to the hardware and can therefore use cores in a dedicated and possibly isolated manner, the TwinCAT Usermode Runtime does not have this option.
TwinCAT 3 Usermode Runtime therefore maps a task to an operating system thread. The assignment of tasks to CPU cores, on the other hand, is accepted by the Usermode Runtime but technically not taken into account, as the operating system manages these threads.