Siemens SINUMERIK 840D sl Commissioning Manual page 322

Fundamentals
15.7 Axis data
Reliability of channel axis gaps
Channel axis gaps must be disconnected via the machine data:
● MD11640 ENABLE_CHAN_AX_GAP = 1 (Channel axis gap allowed).
If this is not carried out, an entry of 0 in the machine data
MD20070 AXCONF_MACHAX_USED
prevents other machine axes being assigned to channel axes.
Literature
Function Manual, Expanded Functions; Several Control Panels on Multiple NCUs,
Decentralized Systems
Example
Figure 15-6
322
Axis configuration with channel axis gap
Commissioning Manual, 07/2007, 6FC5397-2AP10-3BA0
IBN CNC: NCK, PLC, drive