Description

The EM AO02 is a 2-channel analog output module designed for the Siemens S7‑200 SMART PLC. It delivers high-precision analog voltage or current signals to control field devices such as variable frequency drives (VFDs), actuators, analog-positioned valves, or analog indicators. Each output channel is independently configurable via software to output either 0–10 V voltage or 4–20 mA current signals, offering flexibility for various process control applications. This module is especially useful in process automation systems where smooth, linear control is required rather than simple ON/OFF logic. With 12-bit resolution, the EM AO02 ensures accurate signal representation, enabling fine control over machinery behavior such as speed, temperature, flow rate, or positioning. It mounts via a standard DIN rail and connects directly to the CPU through the side bus expansion interface. Integration into your project is seamless using STEP 7 Micro/WIN SMART, where scaling, diagnostics, and output modes can be defined. The EM AO02 is used extensively in industries like food processing, chemical dosing, HVAC systems, and water treatment plants, where analog output is crucial for variable process control.