What functionality does an Analog Output module provide?

An Analog Output module provides the essential functionality of outputting variable electrical signals, which is key for controlling processes that require continuous variable adjustments, such as motor speed, valve position, or temperature. These modules convert digital signals from the control logic into analog signals—typically voltage or current—that represent a range of values.

This capability allows the module to produce smooth and variable outputs, unlike discrete outputs that can only switch between a set number of states (high or low, on or off). The ability to modulate and control the output voltage or current levels precisely enables fine-tuning in industrial applications, enhancing control over processes that rely on variable input conditions or requirements.

In contrast, the other options describe functionalities that do not align with the primary role of an Analog Output module. Thus, the focus on variable electrical signals highlights the distinct capability that sets Analog Output modules apart in automation systems.