Allen-Bradley 1756-L63XT, User Manual

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164 Rockwell Automation Publication 1756-UM001O-EN-P - October 2014
Chapter 10 Develop Applications
Interrupt the Execution of Logic and Execute the Fault Handler
Dependent on your application, you can want an I/O connection error to cause
the Controller Fault Handler to execute. To do so, set the module property that
causes a major fault to result from an I/O connection error. The major fault
causes the execution of the Controller Fault Handler.
First, develop a routine in the Controller Fault Handler that can respond to I/O
connection faults. Then, in the Module Properties dialog box of the I/O module
or parent communication module, check Major Fault On Controller If
Connection Fails While in Run Mode.
Figure 41 - I/O Connection Fault Causes Major Fault
For more information about programming the Controller Fault Handler, see the
Major, Minor, and I/O Faults Programming Manual, publication
1756-PM014 .
Parent Communication Module Properties
I/O Module Properties