Rockwell Automation GMLC Reference Manual - Manual (Page 699)

Publication GMLC-5.2 - November 1999
662 Using AxisLink
Example of a virtual axis configuration
The axis configuration, shown below, links virtual axis 0 in this motion
controller to physical Axis 2 of the motion controller whose address is 3
via AxisLink.
Like a physical axis, set each AxisLink virtual axis’ Mode (rotary or
linear), Units and Display Formats, Conversion Constant, Unwind
Constant (rotary axes only) and Home Position. However, these settings
for the virtual axis need not be identical to those for the physical axis to
which the virtual axis is linked. See Axis Use dialog box for information
on making these selections.
Using Virtual Axes
Once a virtual axis has been configured and set-up, it must be enabled via
a Virtual Axis Control block before it can be used as a master axis for
electronic gearing or position-lock cams. For example, a Virtual Axis
Control block with the following settings enables virtual axis 0 (and
disables virtual axis 1, if it was previously enabled) and pauses program
flow until the link is established.