Alex Cheung, P.Eng

1. OWWA Conference 2014 SCADA Screen Design Best Practices Alex Cheung, P.Eng May 5, 2014

2. Content • Common SCADA Screen Issues Vs Better Approaches. • Other SCADA Screen Design Best Practices. • SCADA/OIT Examples. SCADA Screen Design Best Practices

3. Best SCADA Screen Design Practices • Better Approach • Less is more. (Minimize No. of screens for a process area) Layout • Common Issues • Fragmented Process SCADA Screens. SCADA Screen Design Best Practices

4. Best SCADA Screen Design Practices Best Practices - Layout • Maintain the common navigation menu on the top or at the bottom of all screens. • Centre all pipes and evenly space out objects. • Intuitive. SCADA Screen Design Best Practices

5. Best SCADA Screen Design Practices • Better Approach • Maintain standard and object library. • Use library on all projects. Format • Common Issues • Inconsistence on Color / Font / Device Graphics. • Missing Device Tags. SCADA Screen Design Best Practices

6. Best SCADA Screen Design Practices • Better Approach • Security should be done at the tags, push buttons and setpointslevels. Security • Common Issues • Security is done by • blocking access to other screens. • Making complete different screens for different level of access. After Logon SCADA Screen Design Best Practices

7. Best SCADA Screen Design Practices • Better Approach • Each OIT shares the same program and able to control all the package systems. Networking • Common Issues • Multiple standalone package systems controlled on its own OIT. Train 1 Train 2 Train 1 Train 2 SCADA Screen Design Best Practices

8. Best SCADA Screen Design Practices Other Best Practices • Use Dynamic Pop-Up for instrument and equipment control. • Avoid Ladder Logic & Heavy Computation in SCADA. SCADA Screen Design Best Practices

9. Best SCADA Screen Design Practices Other Best Practices Cont. • Include function or separate screens to separate historical alarms and active alarms. • Utilize one master clock and synchronize in SCADA & PLC. • Include all analog and digital instrument readings in the historical trends. • Include the system status on SCADA such as • PLC Status (Stop, Run or Fault). • Communication Status & Heartbeat Between other PLCs SCADA Screen Design Best Practices

10. Application Examples VFD Synchronous Transfer Control System (VSTCS)

11. VFD Synchronous Transfer Control System (VSTCS) Across The Line Starting #1 Across The Line VFD #2 VFD #1 #2 #4 Across The Line Across The Line #3 SCADA Screen Design Best Practices

12. VFD Synchronous Transfer Control System (VSTCS) Across The Line Stopping #1 Across The Line VFD #2 VFD #1 #2 #4 Across The Line Across The Line #3 SCADA Screen Design Best Practices

13. Application Examples SCADA Screen Design Best Practices

14. Design #1 – Screen #1 1 2 3 4 5 6 SCADA Screen Design Best Practices

15. Design #1 – Screen #2 2 1 3 5 6 4 SCADA Screen Design Best Practices

16. Design #1 – Screen #3 2 1 3 5 6 4 SCADA Screen Design Best Practices

17. Design #1 – Screen #4 2 1 3 5 6 4 SCADA Screen Design Best Practices

18. Design #1 – Screen #5 2 1 3 5 6 4 SCADA Screen Design Best Practices

19. Design #1 – Screen #6 2 1 3 5 6 4 SCADA Screen Design Best Practices

20. Design #2 – Screen #1 2 1 3 5 6 4 SCADA Screen Design Best Practices

21. Design #2 – Screen #2 2 1 3 5 6 4 SCADA Screen Design Best Practices

22. Design #2 – Screen #3 2 1 3 5 6 4 SCADA Screen Design Best Practices

23. Design #2 – Screen #4 2 1 3 5 6 4 SCADA Screen Design Best Practices

24. Design #2 – Screen #5 2 1 3 5 6 4 SCADA Screen Design Best Practices

25. Design #2 – Screen #6 2 1 3 5 6 4 SCADA Screen Design Best Practices

26. Design #3 – Screen #1 2 1 3 SCADA Screen Design Best Practices

27. Design #3 – Screen Popups 2 1 3 SCADA Screen Design Best Practices

28. Design #3 – PLC Network 2 1 3 SCADA Screen Design Best Practices

29. Questions? Email: alex.cheung@aecom.com

30. Thank You Email: alex.cheung@aecom.com