Process Measurement and Control


For discussion of all aspects of measurement and control in the process industries, such as pharmaceutical, power, pulp and paper, chemical, etc. If you have any questions or comments, please post them here. If you see a question that you can answer, or perhaps add your insight, please use the reply to add to the thread.
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  1. pid on microcontroller?. auguslan, Sep 17, 2004
    1. RE: pid on microcontroller?. John Shaw, Sep 25, 2004
      1. Project. Rajendra, Sep 28, 2004
        1. pi controller using 8051. chaitanya, Feb 23, 2005
      2. pid on at89c51. atmo, Mar 17, 2005
        1. I need the same. Le Xuan Huy, Jan 7, 2007
  2. Simulating Pressure loop. Vinod, Sep 7, 2004
    1. RE: Simulating Pressure loop. John Shaw, Sep 8, 2004
  3. IEPAS02 power module INFI 90 Elsag Bailey. djebli, Aug 31, 2004
  4. Untitled. qwer, Aug 13, 2004
  5. can you help in getting c-code for self tuning PID controller. s.rama krishna reddy, Jul 24, 2004
    1. help in getting c-code and matlabcode for water level control. subha.v, Aug 20, 2004
      1. pls help me. J.saravanan, Sep 27, 2004
        1. Helped you.. Janarthanan, Jan 5, 2005
        2. Re: pls help me. Anonymous, Jun 25, 2008
      2. did u find c code. vijay, Dec 9, 2004
  6. can you help in getting c-code for self tuning PID controller. s.rama krishna reddy, Jul 24, 2004
  7. Can cascade save from oscillations. Garyachy Denis, Jul 19, 2004
  8. Sorry and .... Garyachy Denis, Jul 19, 2004
  9. Please give advice!. Garyachy Denis, Jul 19, 2004
  10. help me on project"control of dc motor woth fuzzy logic". vivek singh, Jul 17, 2004
    1. RE: help me on project"control of dc motor woth fuzzy logic". John Shaw, Jul 18, 2004
      1. Re: RE: help me on project"control of dc motor woth fuzzy logic". Parmaster, Sep 3, 2004
  11. tips to the projects. sundarrajan, Jul 16, 2004
    1. Re: tips to the projects. venkata ramana, Aug 21, 2004
  12. please help with pid controller using 8051. rocky singh, Jul 13, 2004
  13. Advice from network people. Newcomer, Jul 13, 2004
  14. Temperature control in the room. Denis Garyachy, Jul 12, 2004
    1. Simple Cascade. Control Novice, Jul 13, 2004
  15. riccati of hamiltonian. gs, Jul 8, 2004
    1. Re: riccati of hamiltonian. eq, Jul 12, 2004
  16. Gulton-West Temp Controller. LL Walz, Jul 6, 2004
  17. PID Iterative Feedback tuning (IFT). Andrew G., Jun 29, 2004
    1. help. pavan, Aug 23, 2004
    2. help. pavan, Aug 23, 2004
    3. help. pavan, Aug 23, 2004
    4. help. pavan, Aug 23, 2004
  18. PID code on www.jashaw.com/pid/code.htm. Luis Martinez, Jun 27, 2004
    1. Re: PID code on www.jashaw.com/pid/code.htm. John Shaw, Jun 28, 2004
  19. Analytical Instrumentation. William, Jun 22, 2004
    1. Analytical Instrumentation. Curtis Keyes, Jun 23, 2004
  20. http://it.groups.yahoo.com/group/mio_gruppo/. Feet Inspector, Jun 3, 2004
  21. Stepper motor control to play noughts and crosses. Scott Carrigan, Jun 1, 2004
  22. information sources. gf, May 29, 2004
  23. valve positioner. Yang Jia, May 13, 2004
    1. Re: valve positioner. Curtis Keyes, May 18, 2004
  24. Valve positioners. William, May 5, 2004
    1. RE: Valve positioners. John Shaw, May 12, 2004
    2. Re: Valve positioners. Curtis Keyes, May 18, 2004
  25. A new polynomial control method: Coefficient Diagram Method. Serdar Ethem Hamamci, Apr 1, 2004
    1. Co-efficient diagram method. Amit Vohra, Apr 29, 2004
  26. Reverse acting pressure controller. Thomas, Mar 31, 2004
    1. RE: Reverse acting pressure controller. John Shaw, Apr 3, 2004
      1. Re: RE: Reverse acting pressure controller. thomas, Apr 6, 2004
        1. RE: Reverse acting pressure controller. John Shaw, Apr 6, 2004
  27. PID & PIC. Koen Janssens, Mar 26, 2004
    1. RE: PID &PIC. John Shaw, Mar 26, 2004
  28. Derivative Control. Shahzad, Mar 8, 2004
  29. Integral Control. Shahzad, Mar 8, 2004
  30. closed system. vidyasagar, Mar 6, 2004
  31. Position control from a PID controller?. Warren, Mar 1, 2004
    1. Motorized Gas Valve. Dan, Mar 10, 2004
  32. WIND-UP. Dandrade, Feb 27, 2004
  33. P I D / F U Z Z Y competition: I pay US$ 50 !!. Rudi, Feb 15, 2004
  34. PID control for AC step motor with big period of measure. Artem, Jan 28, 2004
  35. velocity form of PID. rajesh shaw, Jan 22, 2004
    1. RE: velocity form of PID. John Shaw, Jan 23, 2004
  36. pid control. prinso, Dec 21, 2003
    1. pid algorithm. Sanil C. Malusare, Apr 2, 2004
    2. pid control. sslonkar, Jun 11, 2004
  37. Clipping the proportional term. Dave Fox, Dec 9, 2003
    1. Output limiting. John Shaw, Dec 9, 2003
    2. RE: Clipping the proportional term. Peter Nachtwey, Dec 11, 2003
      1. Re: RE: Clipping the proportional term. Dave Fox, Dec 12, 2003
        1. Re: RE: Clipping the proportional term. John Shaw, Dec 12, 2003
          1. Re: Re: RE: Clipping the proportional term. Dave Fox, Dec 15, 2003
            1. Bailey Infi 90 Controllers. Curtis Keyes, Dec 16, 2003
              1. Re: Bailey Infi 90 Controllers. Dave Fox, Dec 16, 2003
            2. Re: Re: RE: Clipping the proportional term. John Shaw, Dec 18, 2003
  38. data grid smoothing. emiel nuijten, Dec 3, 2003
  39. DCS Vs PLC. Chander P Gupta, Dec 2, 2003
    1. DCS is usually much bigger. Anonymous, Mar 1, 2004
    2. Process Automation Control - DCS vs PLC. Peter Lee, Jan 8, 2005
  40. PID Tuning Metods. Rafael, Dec 2, 2003
  41. Recursive equation to describe the PI Controller. Roy, Nov 28, 2003
    1. PID equation. John Shaw, Nov 28, 2003
      1. Enquires on Positional + Velocity Type of PID output. Anonymous, Dec 1, 2003
        1. Re: Enquires on Positional + Velocity Type of PID output. Emiel, Dec 2, 2003
        2. Positional or Velocity type of PID output. John Shaw, Dec 3, 2003
        3. Positional + Velocity Type of PID output. Peter Nachtwey, Dec 11, 2003
  42. modeling of a hydronic heating system. Ramtin nezamabadi, Nov 8, 2003
    1. RE: modeling of a hydronic heating system. John Shaw, Nov 8, 2003
    2. modeling of a hydronic heating system. Peter Nachtwey, Nov 11, 2003
    3. Fuzzy Logic controller. Mr.Porntep Rattanakumpon, Dec 8, 2003
      1. help my. maher, Jun 6, 2004
  43. Controller Assessment Techniques. PETER, Nov 5, 2003
    1. RE: Controller Assessment Techniques. John Shaw, Nov 8, 2003
    2. RE: Controller Assessment Techniques. Peter Nachtwey, Nov 12, 2003
    3. literature?. emiel nuijten, Nov 21, 2003
      1. Google search for ITAE ISE. Peter Nachtwey, Nov 22, 2003
      2. literature about process control. BIMALGARG, Aug 14, 2004
      3. Re: literature?. Jean-Michel, Oct 10, 2004
  44. Sensors for measuring temperature in process measurement. Dwan, Oct 28, 2003
    1. Temperature or Flow. John Shaw, Oct 28, 2003
  45. Eurotherm. Doug Mcfarland, Oct 27, 2003
  46. Gulton-west controller. Doug Mcfarland, Oct 27, 2003
  47. Derivative for temperature control. Richard, Oct 26, 2003
    1. RE:Derivative for temperature control. John Shaw, Oct 27, 2003
    2. RE:Derivative for temperature control. Peter Nachtwey, Nov 12, 2003
  48. Explaining control theory.... michael, Oct 16, 2003
    1. RE: Explaining control theory.... John Shaw, Oct 21, 2003
  49. Hoover Craft using 3 PID controlled Air Jets. michael, Oct 16, 2003
    1. Re: Hoover Craft using 3 PID controlled Air Jets. emiel, Dec 2, 2003
      1. Re: Re: Hoover Craft using 3 PID controlled Air Jets. emiel, Dec 3, 2003
    2. my project is how to design a hoover craft. obinna, Jul 22, 2004
  50. steam pressure to temperature control with process controller. rock, Oct 3, 2003
    1. RE: steam pressure to temperature control with process controller. John Shaw, Oct 10, 2003
      1. temp measured by pressure due to inrush. rock, Oct 14, 2003
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