The Cogent API is an easy-to-use set of functions that fall into five main categories:
Point structure, storage, and manipulation.
Inter-process communication (synchronous and asynchronous).
Global name server registration and lookup.
Cascade DataHub reading, writing and exception reporting.
Device driver control.
The Cogent Utilities are used by several Cogent products, primarily to facilitate inter-process communication.
The naming convention in these libraries consists of a two-letter package identifier followed by an underscore and a function name in which each word is capitalized. There are no separators between words within the function name.
DH stands for the Cascade DataHub.
DR stands for the Cascade CIF Driver.
HI stands for the Cascade Historian.
IP stands for Inter-Process communication.
PT stands for Cascade DataHub points, and also for their data types.