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Rockwell Automation GMLC Reference Manual User Manual

Page 550

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Publication GMLC-5.2 - November 1999

513

0 (false) if not

An AxisLink timeout is defined to have occurred when the linked axis has
failed to provide any new information for at least 5 servo update intervals.
The AxisLink LED on the front panel flashes red when an AxisLink
timeout occurs.

When AxisLink_timeout = 1, Axis_fault = 7, Axis_status = 14, and
Global_fault = 9.

You can directly clear an AxisLink timeout on a virtual axis by using a
Reset Fault block or by assigning a value of 0 to the appropriate
AxisLink_timeout variable using an Equation block. However, this does
not automatically re-enable the virtual axis.

AxisLink Failed

AxisLink_failed is a logical (Boolean) variable which has values of

1 (true) if an AxisLink virtual axis connection failed to be established
(the axis could not be found)

0 (false) if not

The AxisLink LED on the front panel flashes green when an AxisLink
failure occurs.

In the Tag Explorer, select both Axis System Variables and the desired
virtual axis (an AxisLink failed can only occur on AxisLink virtual axes),
then select AxisLink_failed in the Tag Window.

When evaluated in an expression, the value of the AxisLink_failed
variable indicates whether or not an attempted AxisLink connection
failed.

When AxisLink_failed = 1, Axis_fault = 6, Axis_status = 13, and
Global_fault = 9.