What does DO stand for?

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Study for the ACG Certified Commissioning Authority (CxA) Test. Enhance your knowledge with multiple choice questions and detailed explanations. Prepare effectively for your exam!

Multiple Choice

What does DO stand for?

Explanation:
DO stands for Digital Output. In control systems, a Digital Output is a binary signal produced by the controller to command a field device to turn on or off, such as a relay coil, contactor, or indicator lamp. This is the opposite of a Digital Input, which is a signal the controller receives from a device indicating its on/off state. Digital outputs are discrete rather than variable voltages, while analog signals (not DO) would be AI or AO. The other terms listed aren’t standard in this context.

DO stands for Digital Output. In control systems, a Digital Output is a binary signal produced by the controller to command a field device to turn on or off, such as a relay coil, contactor, or indicator lamp. This is the opposite of a Digital Input, which is a signal the controller receives from a device indicating its on/off state. Digital outputs are discrete rather than variable voltages, while analog signals (not DO) would be AI or AO. The other terms listed aren’t standard in this context.

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