Control Response Of Plc-Controlled Axes - Siemens SINUMERIK 840D sl Function Manual

11.7.3

Control response of PLC-controlled axes

Response to channel reset, NEWCONFIG, block search and MD30460
Control response to
Mode change and NC program control
Channel RESET
NEWCONFIG
Block search Type 5 SERUPRO
All block search variants
of types 1, 2, 4 and 5
NC-controlled retraction activated with
$AC_ESR_TRIGGER.
machine data:
MD30460 $MA_BASE_FUNKTION_MASK
Bit 4 = 0
Bit 4 = 1
MD30460 $MA_BASE_FUNKTION_MASK
Bit 6 = 1
Bit 7 = 1
* Note on axis replacement
This replacement of a "neutral axis" by an "NC program axis" does not take place until the
PLC has really relinquished control of the axis in accordance with use case "Relinquish
control of axis". Waiting for this axis interchange is displayed on the HMI operator panel
front.
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
11.7 Control by the PLC
PLC-controlled axis
work independently of axis.
No axial machine data are effective and a
traversing movement is not aborted.
No axial machine data are effective.
are processed during SERUPRO to simulate the
normal procedure, e.g. PLC takes over or
relinquishes control of this axis which is also
traversing via the PLC.
The PLC takes over control of the axis before the
approach block and is responsible for positioning
this axis.
has no effect and acts only on the specified PLC-
controlled axis.
which is not controlled
exclusively by the PLC
cannot be changed directly with axis replacement
command GET (axis) or AXTOCHAN(axis,
channel) to an axis controlled by the NC program,
see * Note on axis replacement.
cannot be requested for the NC program. GET or
AXTOCHAN from the NC program or a
synchronized action, or programming the axis in
the NC program, are rejected with alarm 26075.
For the PLC-controlled axis
channel-specific
IS DB 21, ... DBX6.0 ("feed disable") is not
effective. This axis is not stopped when feed
disable is activated, but continues to move.
the axis is not taken into account when
IS DB 21, ... DBX36.3 ("all axes stationary") is
generated. This signal is output with 1 even if all
other axes in the channel are stationary and only
the PLC-controlled axis is active.
P2: Positioning axes
803