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Navigation: Library > Signal > Control > PID Control > Commercial Controllers |
  
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According to b Åström the table below summarizes the properties of some commercial controllers.
Controller |
Structure |
Setpoint Weighting b |
Setpoint Weighting c |
Derivative Gain Limitation N |
Sampling Period s |
1. Allen Bradley PLC 5 2. Baliley Net 90 3. Fisher Controls Provox 4. Fisher Controls DPR 900,910 5. Fisher Porter Micro DCI 6. Foxboro Model 761 7. Honeywell TDC 8. Moore Products Type 352 9. Alfa Laval ECA40, ECA 400 10. Taylor Mod 30 11. Toshiba TOSDIC 200 12. Turnbull TCS 6000 13. Yokogawa SLPC |
P P S S S S S S S S S S P |
1.0 0.0 or 1.0 1.0 0.0 1.0 1.0 1.0 1.0 0.0 0.0 or 1.0 1.0 1.0 0.0 or 1.0 |
1.0 0.0 or 1.0 0.0 0.0 0.0 or 1.0 0.0 1.0 0.0 0.0 0.0 1.0 1.0 0.0 or 1.0 |
None 10 8 8 none 10 8 1-30 8 17 or 20 3.3 – 10 none 10 |
Load dependent 0.25 0.1, 0.25 or 1.0 0.2 0.1 0.25 0.33, 0.5 or 1.0 0.1 0.2 0.25 0.2 0.036 – 1.56 0.1 |