With high-speed motion applications such as multiple axis synchronizations and closed loop / dynamic servo control, PROFINET Isochronous Real Time (IRT) has the ability to synchronize all the nodes so there can be precise determinism and reduced jitter. Also, the device simultaneously provides feedback to the controller. Each device (and controller) operates on its own local clock and does most of the interpolation and processing locally. Real-Time (RT) or optional IRT clock syncĪs our table points out, for most common VFDs and single axis controllers the drive is operated as a standard PROFINET IO Real Time (RT) device. Pumps, Fans, Compressors, Transport, etc. Drive Applicationsįirst, motion control applications can have different requirements depending on the application: Drive Technology Next, we’ll describe these aspects in a little more detail. Motion control support comes with PROFINET technology from three main aspects:ġ.) The ability for scalable real-time control depending on the drive applicationĢ.) Improved determinism through bandwidth utilization and schedulingģ.) PROFIdrive application profile option It should come as no surprise that PROFINET also supports motion control applications with drives and motors (sometimes also referred to as VFDs – Variable Frequency Drives) as these are used in most modern automation systems.
