Siemens SINUMERIK 840D sl Function Manual page 366

K5: Channel synchronization, axis interchange
6.2 Axis replacement
Syntax
GET(<axis1>[, axis2 ... axis15])
Meaning
GET:
<axis>:
Supplementary conditions
Axis interchange is delayed in the following situations:
● The axis has not yet been released with RELEASE by the channel to which it is assigned.
● A change of measuring system has not yet been completed.
● The change of status of the controller enable has not yet been completed (transition of rules
to follow-up/stop and vice versa).
● The NC/PLC interface signal "axis or spindle disable" is pending (DB31, ... DBX1.3 == 1)
● The current traversing movement (interpolation) of the axis has not yet been completed.
Fetching an axis directly (GETD)
Function
An axis that is not assigned to the current channel is required for the following machining
section of a part program. With the predefined procedure GETD(), the axis is fetched directly
from the channel to which the axis is assigned. For this purpose, the axis does not have to be
released by this channel with RELEASE().
After axis interchange, the axis has "channel axis" status.
Depending on the state of the axis in the relinquishing channel, a preprocessing stop is
triggered in this channel (STOPRE):
● "Channel axis" status ⇒ preprocessing stop
● "Neutral axis" status ⇒ no preprocessing stop
366
Request of an axis for the current channel
Preprocessing Yes
stop:
Alone in the Yes
block:
Axis: Channel axis name of the requested axis
Spindle: Channel axis name of the requested spindle or conversion of the spindle num‐
ber in the channel axis names by means of SPI(<spindle number>)
Type: AXIS
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions