greml1n Posted October 26, 2014 Report Share Posted October 26, 2014 Can anyone elaborate on sample time in PID configuration? If an autotune is not performed this value is zero and the value entered via my linked numeric box for Integral time has no effect on the rate of change of the control value integral. Once I enter a value for sample time in the AT run parameters it works as it should. If an autotune is not feasible for certain control processes how would I go about choosing a value for sample time? One other thing I notice with PID is if I change the Integral time to "0" the control value integral remains at its last value. If I change Derivative time to zero the control value derivative reverts to zero immediately. I was wondering if a reset numeric linked to any change in integral time value would remedy this? Also, can anyone tell me what PID mode is or does in the PID configuration? Quote Link to comment Share on other sites More sharing options...
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