Rockwell Automation Publication 1756-UM001M-EN-P - February 2012 171
Develop Applications Chapter 10
Figure 37 - 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
.
System Overhead Time Slice
The controller communicates with other devices at either a specified rate
(scheduled) or when there is processing time available to service the
communication (service).
Service communication is any communication that you do not configure through
the I/O configuration folder of the project.
The system overhead time slice specifies the percentage of time a controller
devotes to service communication. However, if there is no continuous task, the
overhead time slice has no affect. If you have both a periodic and continuous task,
the System Overhead Time Slice entered in the Advanced tab of the Controller
Properties dialog box specifies continuous task/service communication ratio.
I/O Module Properties
Parent Communication Module Properties
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