W
Reference Bela Liptaks PROCESS CONTROL, chapter titled "Feedforward & Feedback Control", there is an illustration of this control scheme applied to a heat exchanger. However, there is no specific discussion in respect of the SCALING required for the measured variables. In this chapter, there is an illustration of this control scheme applied to a heat exchanger. However, there is no specific discussion in respect of the SCALING required for the measured variables. I wish to implement this scheme on a PLC, but it will be useless unless the scaling of all variables is done correctly. I would be grateful to hear from someone that could advise me regarding this. Many thanks.