Axis Replacement From Synchronized Actions - Siemens SINUMERIK 840D sl Function Manual

K5: Channel synchronization, axis interchange
6.2 Axis replacement
Prerequisite for changing from JOG to AUTOMATIC
When changing from JOG mode to AUTOMATIC, the Condition program is interrupted and
the end point of this geometry axis motion is only taken over if in MD 32074:
FRAME_OR_CORRPOS_NOTALLOWED bit 11=1. This positions the PLC or command axes
in relation to the rotation of the frame.
All axes influenced by a rotating frame are considered as geometry axes grouping and are
handled collectively. In this way, all axes of the
● assigned to the NC program or
● all axes are neutral or
● are active as main run axes (PLC, command, or oscillation axis).
For example, if one axis is programmed with a WAITP, waiting is performed for all further axes
of the geometry axis grouping, so that these axes can collectively become neutral axes. If one
of the axes becomes a PLC axis in the main run, then all other axes of this grouping become
neutral axes.
Supplementary conditions
If MD32074 $MA_FRAME_OR_CORRPOS_NOTALLOWED, bit 10 == 0 and ROT Z45 is
programmed in the NC program, then for the X and Y axes no axis interchange is possible.
This is also analogously valid for the Z axis for e.g. ROT X45 or ROT Y45 – and also in the
JOG operating mode – if a block was interrupted with this type of programming. Although in
this case the NC/PLC interface signals are set for the X and Y axes:
● DB31, ...DBX68.5 (axis interchange possible) = 1
● DB32, ...DBX68.5 (axis interchange possible) = 1
However, these are reset.
Only if MD32074 $MA_FRAME_OR_CORRPOS_NOTALLOWED, Bit 10 == 1 and no block
with this programming is being currently traversed, then in the JOG mode, these types of axes
can be interchanged.
6.2.12

Axis replacement from synchronized actions

Function
An axis can be requested with GET(axis) and be released for axis replacement with
RELEASE(axis) with a synchronous action.
Note
The axis must be assigned as a channel axis via machine data.
An axis can be transferred directly between channels to a certain channel with the NC language
command AXTOCHAN via synchronized actions or in the part program. This axis does not
have to be the same channel and it is not necessary that this channel be in possession of the
current interpolation right for the axis.
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Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions