Rockwell Automation GMLC Reference Manual - Manual (Page 539)

Publication GMLC-5.2 - November 1999
502 Controller Variables
AxisLink Configuration Nodes
AxisLink_configuration_nodes is an eight-bit binary coded value that
indicates which external controllers are connected via AxisLink.
In the Tag Explorer, select General System Variables, then select
AxisLink_configuration_nodes in the Tag Window.
You can use this parameter to check which nodes are on the link. When
used in conjunction with the default data parameter AxisLink_nodes
(D63), it can check which, if any, controllers have dropped off the link.
The AxisLink_nodes parameter contains a bit mapping of the controllers
that are supposed to be linked, whereas the
AxisLink_configuration_nodes parameter contains a bit mapping of the
controllers that are in fact currently linked.
For example, if Controller 0 is currently linked to Controllers 1, 3, 5, and
7:
• bits 1, 3, 5, and 7 will be set in AxisLink_configuration_nodes
• the value 170 (AA hex) will be displayed when
AxisLink_configuration_nodes is examined.
Important:
!
ATTENTION: If you selected Extended AxisLink in
the Configure Control Options dialog box, you can
select from up to 16 controllers to link together.
However, only eight controllers can be linked at any one
time