The Allen-Bradley 4100-ESRS Encoder Signal Reference Simulator is a Rockwell Automation module in the 4100 family that generates a digital speed reference for a motor and encoder feedback combination. The Encoder Signal Reference Simulator (ESRS) is used to simulate encoder reference signals to validate motion-axis configuration and drive setup without live hardware, supporting testing and commissioning workflows for encoder-based servo systems. The Rev level shown on the product listing is Rev 001C F Rev 1.12, indicating its specific revision for this model.
