extends the scope of traditional Distributed Control Systems (DCS) to include electrical, safety, and information management systems. It is built on an Industrial IT architecture, utilizing Aspect Object technology.
If you are looking at the manuals for the newer versions (v6.0, v6.1, v6.2), there are distinct improvements over older v5.1 guides: abb dcs 800xa training manual new
If you have previous experience with 800xA, unlearning old habits is critical. Here are three major changes highlighted in the manual: extends the scope of traditional Distributed Control Systems