User`s guide

Section 1 — An Operator’s Quick Tour of Profit Optimizer Displays
1.2 Control Concepts You Need to Understand
6 Profit Optimizer User's Guide 1/00
Honeywell Inc.
Parameters
The Profit Optimizer uses parameters in its calculations that define optimization
objectives and refine optimization decisions. Most parameters are entered
through the Profit Optimizer displays (some are entered through the off-line
build). For our purposes, there are three kinds of parameters: configuration
parameters, tuning parameters, and optimization parameters. Table 1-4 defines
the Profit Optimizer parameters.
Table 1-4 Configuration, Tuning, and Optimization Parameters
Parameter Description
Configuration Configuration parameters define the process model and tell Profit Optimizer
what files to read, and where to find them. Some of these parameters, such as
the number of Profit Controllers, BDVs and CCs, for example, are established
off-line when building the optimizer.
Except when new controls are added or production methods change, there is no
need to modify the configuration parameters of a Profit Optimizer
implementation.
Tuning Tuning parameters refine how Profit Optimizer controls CVs, MVs and CCs (DVs
cannot be controlled so cannot be tuned). Tuning parameters determine the
responsiveness and stability of the optimizer.
There are two kinds of tuning parameters, process tuning parameters, and
optimizer tuning parameters:
• Process tuning parameters tell the optimzier how closely to follow the
process,
• Optimizer tuning parameters (such as optimization speed factor) establish
the optimizer’s responsiveness.
Optimization Optimization parameters are a special kind of tuning parameter that optimize
production based upon economic priorities established for the process. These
parameters do not come into play until after control objectives are met.
At each optimizer execution, once the optimizer objectives have been met, the
optimizer, as defined by the optimization parameters, will push or pull the
process to some economic benefit. This push-pull might minimize utility costs, or
maximize the yield of a more valuable product.
When the optimizer is optimizing, OPTIMIZING displays on the Optimizer Bar as
the optimizer’s status.