National Instruments 'Webcast Wednesday' presented by : Bandan Jot SIngh , Applications Engineer , National Instruments India For more information on Webcast Wednesday's: http://digital.ni.com/worldwide/india.nsf/web/all/8A6F4A7271EAC4AF86257661006318F9?OpenDocument&node=163960_us

3. Meet your Presenter Bandan Jot Singh Applications Engineer, NI India

4. Case Study Using NI-LabVIEW Real-time and PXI Technology To Automate Gauge-Control In Cold Rolling Mills

6. Problem Statement

7. Formulation of Closed-Loop Control System

8. Implementation Using LabVIEWRealTime and NI Hardware

9. Leverage Achieved Using NI Equipments5

11. PLC: Programmed in Ladder Logic (Operation Specific)

12. DCS: Collection of various PLC’s and RTU’s (Dedicated Systems)

13. Applications using frequently changing control logic may not be efficient onsuch platforms because development time is more.

15. Applications that require Real-Time Monitoring

16. Control Systems that require high-precision monitoring and a short response time7

18. Initial Thickness

19. Rotating Speed

23. 500 kS/s (1-Channel), 250 kS/s (Multichannel), 12-Bit, 16-Analog-Input Multifunction DAQ

25. 8-channel, 32-bit up/down counter/timer module

26. 80 MHz maximum source frequency

28. High-Speed Analog Output -- 12-Bit, 1 MS/s per Channel

29. Digital triggering and external clocking

32. Specialized for Time-critical data acquisition and control applications

34. The development time for putting the whole system came down by a factor of 1/6.

35. Increased flexibility in redesigning the control mechanism as per the requirements of different materials fed to the system.

36. Enhanced quality in output because of reduction in response times. In a typical PLC based system the control loop rate is 100 to 500 milliseconds but in NI PXI based system, this is reduced to 10 ms.

38. Thank youFor more information, please visit ni.comor contact us at080-41190000ni.india@ni.com 19