M/H functions
Technology functions, e.g. M/H functions, are treated in both paths as common functions. Although the interface to the PLC is channel- or axis-specific, the two paths are interpolated in the same NC channel. For this reason, programming and synchronisation with the PLC does not differentiate between the lower and upper path.
Example:
N.. F1000 G90 : G0 X400 M501 : G1 U500 M502
N.. M601
N.. : X49 : U300 M700]