Abstract
The trend toward lower cost of new
technologies in building automation and energy
management in the 80's has forced the
controls companies to produce individual
microbased Distributed Direct Digital Controls
(DDDC) systems. The impact of new
technologies unfortunately raises a tremendous
number of problems for large facilities,
such as incompatibility between
different manufacturers' data communication
protocols, configuration networks, message
formats, sensors, and source program languages.
This paper describes the IBM Poughkeepsie
Distributed Facilities Automation
Control System (IPDFACS) standards used in
the bidding process, the philosophy behind
them, the type of instrumentation specified
to be installed, and how to maintain this
complex DDDC system.
Cilia, J. P. (1986). One IBM Plant's Approach to Automated Control System Standards. Energy Systems Laboratory (http://esl.tamu.edu). Available electronically from
https : / /hdl .handle .net /1969 .1 /92963.