Hey at 3:25 ish you mention that the Plus branch is zero. Is there a specific reason for this? I can't figure out why we choose the minus over the plus.
I know this is 3 months later, but for anyone else watching: Process time dynamics are slow enough that valve and sensor/transmitter time dynamics are negligible (no lag time ((no tau))). So we can assume 0th order. In other words, only need to focus on the gain for those transfer functions.
Hey at 3:25 ish you mention that the Plus branch is zero. Is there a specific reason for this? I can't figure out why we choose the minus over the plus.
I think because Ysp is zero ("as here you're assuming the set point has not changed") then obviously that whole branch just = 0
how we r assuming if valve or others r 0z or 1st order
I know this is 3 months later, but for anyone else watching: Process time dynamics are slow enough that valve and sensor/transmitter time dynamics are negligible (no lag time ((no tau))). So we can assume 0th order. In other words, only need to focus on the gain for those transfer functions.