Esprit Project 22897
Software Technologies to home page
Glossary of Hot Rolling Mill Terms
ABC
Automatic Bending Control. A level-0 system that takes care of
very fast control loops concerning bending of rolls.
ACDQ
Accellerated cooling / direct quenching equipment. See
cooling section below.
AGC
Automatic Gauge Control. A level-0 system that takes care of
very fast control loops concerning the force and gap
adjustment.
AWC
Automatic Width Control. A level-0 system that takes care of
very fast control loops concerning width control.
Material tracking
The tracking of products in the line.
Measured values processing
The collection and treatment of all data that is reported
from the subsystems. The data is reduced and modified to
fit the model and it's calculations.
MMI
Man Machine Interface. The graphical screens that the operator
is using to supervise and control the process.
Model
The part of the software system that does the
mathematical/physical calculations.
Pass
A movement of a plate through the mill.
A movement of a plate through a leveller is also a pass...
Pass schedule
A series of data which contains setup values for the basic
automation. The data is precalculated by the model and
consists of thickness setup values, speeds, max forces etc.
PDI
Primary Data Input. The data that is coupled to a product.
Coming from a level-3 system. Is treated as read-only.
Postcalculation
The part of the model which is made AFTER a pass. Is mostly
followed by a precalculation for the next pass.
Precalculation
The part of the model which is made BEFORE the pass.
Setup
The arrival of PDI and the action followed therebye is called
a setup.
The sending of a pass schedule data to the level-1 system
in order for it to position to the right positionings
before an operation is also called a setup.
