External Reset

infineum

Member
I
Join Date
Mar 2006
Location
Linden
Posts
100
Can someone explain the concept of external reset as applied to PID control? I believe this concept may be of some aid in preventing temperature overshoot during the heatup phase of a batch reactor. Currently, I do a lot of special sequence programming to prevent this situation such as turning off the integrator or switching PID gain and reset parameters.
Also can anyone provide some information on configuring a PID to implement external reset using a controllogix or Siemens S7 PLC?
Thanks.
 

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