Controller analog output terminals are commonly labeled what, including their common return?

Study for the Direct Digital Controls and Lab Test with interactive questions and detailed explanations. Enhance your skills in managing digital systems and be fully prepared for success!

Multiple Choice

Controller analog output terminals are commonly labeled what, including their common return?

Analog output channels are the pins that drive a process signal and need a common reference to complete the circuit. Controllers typically label these outputs as AO1, AO2, and so on, with a common return pin labeled COM. The signal you set on AO1 (or AO2, etc.) is referenced to COM, so you connect the load between AOx and COM. This setup is what lets the controller deliver either a voltage or current signal to an actuator or instrument.

The other options mix up channel types: analog inputs are labeled AI and are used to read signals, not drive them; digital outputs are DO and handle on/off signals, not analog values; and VCC is just a supply rail, not the reference return for an analog output. RO isn’t a standard labeling for analog outputs either.

Controller analog output terminals are commonly labeled what, including their common return?

Study for the Direct Digital Controls and Lab Test with interactive questions and detailed explanations. Enhance your skills in managing digital systems and be fully prepared for success!

Controller analog output terminals are commonly labeled what, including their common return?

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