Abstract
A Level III Automation or EMC system is also referred to in this book as an engineering control center. This is because these systems perform a central engineering function, similar to the concept of a Level II system, along with automatic control, energy monitoring, maintenance scheduling, information management, life safety and other functions which are made possible by a software-based logic system. The current state of the art in this technology is the Direct Digital Control (DDC) system. DDC is treated separately in Chapter 10. A further enhancement is distributed processing which will be discussed later in this chapter.
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