Behavior of Busy Output

The Busy output indicates that the function block is still working, with new output values to be expected.
Busy is SET at the rising edge A rising edge is the transition of a digital signal from low to high. It is also called positive edge of Execute and RESET when one of the outputs Done, Aborted or Error is set. It is recommended that this function block is kept in the active loop of the application program for at least as long as Busy is True, because the outputs can still change.
For one axis, several function blocks can be busy, but only one can be active at a time. Exceptions are MC_SuperImposed and MC_Phasing, where more than one function block related to one axis can be active.