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With PLC, user can select any HMI package. But in DCS, HMI is bundled. From end user perspective, what key functionalities and differentiators you look for just from HMI perspective alone.
Assume only DCS HMI is Go/NO Go decider (not a real situation, but..)
Assume only DCS HMI is Go/NO Go decider (not a real situation, but..)