Inquire about methods used to ensure efficient communication between PLCs, robots, and MES/SCADA systems. Request a description of an instance requiring modification of control logic to meet specific SCADA or MES data acquisition needs. Ask about familiarity with communication protocols and standards (e.g., OPC UA, Modbus, Ethernet/IP). Visualization and Human-Machine Interface (HMI): 4. Explore how data and alarms are prioritized for HMI display to operators. Discuss any collaborative projects with SCADA engineers involving HMI screen design or modification. Query experience with integrating control system data with visualization tools (FactoryTalk, Wonderware, Ignition). System Optimization and Troubleshooting: 7. Investigate methods for ensuring data accuracy and reliability from control systems for MES analysis and reporting. Request examples of using SCADA historical data for troubleshooting control issues. Connectivity and Network: 9. Discuss strategies used to maintain seamless data flow between field devices and SCADA/MES systems, especially in extensive setups. Ask about measures taken to ensure cybersecurity in control systems, particularly when interfacing with higher-level systems like MES and SCADA. Integration of Advanced Features: 11. Inquire about the integration of vision system data into SCADA or MES systems and the benefits realized. Explore interest or plans in integrating advanced features or functionalities between control systems and SCADA/MES. Project Collaboration: 13. Request a detailed account of a project involving close collaboration with SCADA/MES teams, focusing on challenges and resolutions. Discuss approaches to version control and updates in integrations with SCADA and MES solutions. Future Vision: 15. Inquire about emerging technologies in controls engineering that could impact MES/SCADA systems and shop floor interactions. Explore the candidate’s vision for the future of controls engineering in the context of Industry 4.0, IoT, and smart manufacturing. Continuous Improvement: 17. Discuss how feedback from SCADA/MES teams is incorporated to improve control system designs or maintenance. Request an example of a control system change or upgrade driven by MES analysis or SCADA insights. Documentation and Standards: 19. Conclude by asking about the documentation process and standards to ensure the control systems are comprehensible for SCADA and MES engineers.