Post Fault Processlist

CNC Bender Version

This feature is available in all CNC Bender software as of version 10.0.5.8 (July 6, 2006).

What is it?

The post fault processlist is a text file that contains legal COMDEF command names and other directives to CNC Processor. It is the equivalent of a small bend program.

Flexibility

This feature’s power is its flexibility. It allows each bender to use custom reactions to fault events.

When does it run?

CNC Processor runs this processlist after a fault occurs when a bend program is running. For example, if a command time-out occurs, then a fault will be triggered, then immediately run the PostFault.cncprocesslist. Other faults include range errors - such as when an axis is told to move beyond its legal range.

Sample Post Fault Processlist

Robot_Clear_BenderIsReady
OutputControlOff
[manualmode]

This is a sample post fault processlist in which the “ready” output to a robot is being cleared (so that the robot will not try to collect a part if a fault has occurred). The second step in the list is to shutdown the control. Finally, the processor is instructed to switch to manual mode.

Caution

As with all hand-customized process lists that are this flexible, please exercise care in choosing the proper commands. (Choosing an incorrect command could cause a machine crash.)

Location

The processlist location and name is c:\cnc\config\PostFault.cncprocesslist If the processlist is not present in this location with this name, then it is simply ignored, and no process is run after fault events.

--Mcone 12:25, 8 July 2006 (EDT)