Siemens SINUMERIK 828D Function Manual page 352

G2: Velocities, setpoint / actual value systems, closed-loop control
7.3 Metric/inch measuring system
Read path axes affecting velocity
The axes involved in path interpolation can be read using system variables:
• For the display in the user interface, in synchronized actions or with a preprocessing stop in the part program
via the system variables:
$AA_FGROUP[<axis>]
$AC_FGROUP_MASK
• Without preprocessing stop in the part program via system variables:
$PA_FGROUP[<axis>]
$P_FGROUP_MASK
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Returns the value "1" if the specified axis affects the
path velocity in the current main run record by means of
the basic setting or through FGROUP programming.
Otherwise, the variable returns the value "0".
Returns a bit key of the channel axes programmed with
FGROUP which are to affect the path velocity.
Returns the value "1" if the specified axis affects the
path velocity by means of the basic setting or through
FGROUP programming. Otherwise, the variable returns
the value "0".
Returns a bit key of the channel axes programmed with
FGROUP which are to affect the path velocity.
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions