Question 67General Subjects - Assistant Engineer
70% to passAs shown in the illustrated block diagram for a distributed automation system, what statement is true concerning the data communication pathways labeled "Dual CAN"? Illustration EL-0096
AThese are control area networks providing supply and return pathways for communication.
BThese are control area networks providing redundancy so as to maintain communications despite a bus failure.
CThese are communication access nodes providing redundancy so as to maintain communications despite a node failure.
DThese are communication access nodes providing supply and return pathways for communication.
AI Explanation
The correct answer is B) These are control area networks providing redundancy so as to maintain communications despite a bus failure. The "Dual CAN" pathways in the illustrated block diagram represent redundant control area networks (CAN bus) that provide backup communication channels. This redundancy ensures that communication can be maintained even if one of the CAN buses fails, ensuring the overall reliability and resilience of the distributed automation system. The other answer choices do not accurately describe the purpose and function of the "Dual CAN" pathways as presented in the diagram.
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