Which component holds the I/O configuration for a specific module in a ControlLogix chassis?

The component that holds the I/O configuration for a specific module in a ControlLogix chassis is the owner. In the context of a ControlLogix system, the owner refers specifically to the controller or processor that is responsible for managing the I/O modules. The owner keeps track of the configuration settings, including the type of modules, their addresses, and how they communicate with the processor and other modules.

In ControlLogix systems, the controller not only processes the logic but also serves as the authoritative source of information about the I/O configuration. This ensures that the controller has the most up-to-date configuration data and can effectively manage inputs and outputs connected to the system.

Other components, such as the communication module, serve different purposes, such as facilitating communication between the processor and the I/O modules or other systems. The processor itself does play a critical role in the operation of the system, but it's the owner that specifically holds the configuration data. The operator interface, meanwhile, is primarily focused on human interaction with the system rather than managing I/O configurations.