There are four distinct data value categories for points, as well as for other components (for example, weekly schedules). These value types are:

• Boolean

  Represents a binary value with only two states, such as “Off” or “On.”

• Numeric

  Represents an analog value such as a temperature, level, rate or similar floating point number, or a varying count (integer). Double-precision (64 bit) values are used.

• Enum

  Represents an enumerated state (more than two), such as a multi-speed fan with states “Off,” “Slow,” and “Fast.” Enums are often called multi-states or discretes. States typically derive from established integer value/state name pairs.

• String

  A string of one or more ASCII characters (and if alpha-numeric), often with some literal meaning.