Advanced Programmable Logic Controller (PLC) Practice Test

The statement is true. When configuring the I/O for a local chassis in a PLC system, any I/O modules that are situated in a remote chassis indeed must be configured to communicate effectively with the local chassis. This is essential because the PLC architecture typically relies on a configured communication protocol to facilitate the correct data exchange between local and remote I/O devices.

If remote I/O modules are not properly configured to integrate with the local chassis, they may not operate correctly or communicate necessary operational signals, which can lead to malfunctions, data loss, or operational delays. Proper configuration ensures that the PLC can recognize, manage, and utilize remote I/O modules in its overall control logic and processes, thus enabling seamless integration into the system.

In context, other options do not apply because the configuration is required regardless of whether the remote module is active or whether they specifically are I/O modules, emphasizing the universal need for configuration in multi-chassis setups.