The ABB CM30 PID Controller is equipped with several advanced control features that enhance its performance and adaptability in various applications. Some of these features may include:

1. Auto-Tuning: The CM30 can automatically adjust PID parameters based on the system's response, optimizing control performance without manual intervention.

2. Feedforward Control: This feature allows the controller to account for disturbances in the process, improving response time and stability.

3. Cascade Control: The ability to control multiple loops or processes in a hierarchical manner, where one controller's output serves as the setpoint for another.

4. Ratio Control: This feature enables the controller to maintain a specific ratio between two or more process variables, which is useful in blending applications.

5. Split-range Control: This feature allows a single control signal to be distributed to multiple control elements or actuators, each operating within a specific range of the control signal.

6. Advanced control: The controller supports predictive and adaptive control strategies.

7. Advanced Alarm Management: The CM30 can provide detailed alarm management, allowing users to set thresholds and receive notifications for various process conditions.

8. Data Logging and Trending: The ability to log process data over time helps in analyzing performance and making informed decisions for process optimization.

9. Flexible Control Modes: In addition to standard PID control, the CM30 may support other control modes like ON/OFF control, which can be advantageous in certain applications.

10. Network Connectivity: Support for communication protocols allows for integration into larger control systems, enabling remote monitoring and control.