Allen-Bradley ControlLogix Manual do Utilizador descarregar pdf (Página 164)

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

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Allen-Bradley ControlLogix Manual do Utilizador Página 164