Automatic Axis Replacement - Siemens SINUMERIK 840D sl Function Manual

To coordinate transfer of the axis between the channels with GETD(), we recommend using
channel synchronization (Page 351) between the requesting and the relinquishing channel.
NOTICE
Preprocessing stop in the relinquishing channel
If the axis in the relinquishing channel has "channel axis" status, a preprocessing stop will be
triggered in this channel (STOPRE):
Syntax
GETD(<axis>)
Meaning
GETD:
<axis>:
Supplementary condition
If the axis has "PLC axis" status in the relinquishing channel, the axis must be released for
axis interchange by the PLC user program.
Supplementary conditions
Channel reset
● If a channel reset is triggered in the channel that requested the axis, axis interchange is
canceled.
● A replaced axis remains assigned to the channel that last requested it even after a channel
reset.
6.2.5

Automatic axis replacement

Function
Automatic axis replacement or automatic fetching of an axis into the current channel is
performed if the axis is programmed in the part program or synchronized action, but it is not
assigned to the channel at the moment.
Requirement
Parameterization of automatic axis replacement by GET() or GETD():
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Fetching an axis directly into the current channel
Preprocessing Yes
stop:
Alone in the Yes
block:
Axes: Channel axis name of the requested axis
Spindles: Channel axis name of the requested spindle or conversion of the spindle
number in the channel axis names by means of SPI(<spindle number>)
K5: Channel synchronization, axis interchange
6.2 Axis replacement
367