1. Alex Cheung, P.Eng OWWA Conference 2014 SCADA Screen Design Best Practices 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 Page 2

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

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 Page 4

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

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

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

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 Page 8

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 Page 9

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

11. SCADA Screen Design Best PracticesPage 11 VFD #1 VFD #2 Across The Line Across The Line #1 #2 #3 #4 Across The Line Across The Line Starting

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

13. Application Examples SCADA Screen Design Best PracticesPage 13 Design No.1 Design No. 2 Design No. 3

14. Design #1 – Screen #1 SCADA Screen Design Best PracticesPage 14

15. Client logo SCADA Screen Design Best PracticesPage 15 Design #1 – Screen #2

16. Client logo SCADA Screen Design Best PracticesPage 16 Design #1 – Screen #3

17. Client logo SCADA Screen Design Best PracticesPage 17 Design #1 – Screen #4

18. Client logo SCADA Screen Design Best PracticesPage 18 Design #1 – Screen #5

19. Client logo SCADA Screen Design Best PracticesPage 19 Design #1 – Screen #6

20. Client logo SCADA Screen Design Best PracticesPage 20 Design #2 – Screen #1

21. Client logo SCADA Screen Design Best PracticesPage 21 Design #2 – Screen #2

22. Client logo SCADA Screen Design Best PracticesPage 22 Design #2 – Screen #3

23. Client logo SCADA Screen Design Best PracticesPage 23 Design #2 – Screen #4

24. Client logo SCADA Screen Design Best PracticesPage 24 Design #2 – Screen #5

25. Client logo SCADA Screen Design Best PracticesPage 25 Design #2 – Screen #6

26. Client logo SCADA Screen Design Best PracticesPage 26 Design #3 – Screen #1

27. Client logo SCADA Screen Design Best PracticesPage 27 Design #3 – Screen Popups

28. Client logo SCADA Screen Design Best PracticesPage 28 Design #3 – PLC Network

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

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