In building automation, what does DDC stand for?

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Study for the ACG Certified Commissioning Authority (CxA) Exam. Prepare with flashcards and multiple choice questions, each comes with hints and explanations. Ace your exam!

Multiple Choice

In building automation, what does DDC stand for?

Explanation:
Direct Digital Control is the standard term in building automation. It means controllers use a digital processor to read sensor data, run control algorithms in software, and directly command actuators. This digital approach enables precise, programmable control, data logging, and easy network integration, which are core features of modern BMS/CxA systems. The other phrases aren’t the established terminology in this field and don’t accurately describe how typical DDC systems operate.

Direct Digital Control is the standard term in building automation. It means controllers use a digital processor to read sensor data, run control algorithms in software, and directly command actuators. This digital approach enables precise, programmable control, data logging, and easy network integration, which are core features of modern BMS/CxA systems. The other phrases aren’t the established terminology in this field and don’t accurately describe how typical DDC systems operate.

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