Reconciliation
RECONCILER is Resolution's reconciliation engine. It is
accurate, fast, robust, and handles complex reconciliation problems involving
linear
and non-linear balance equations and constraints.
It can be used as a DLL procedure and incorporated into the
client’s
existing applications or as a WEB-based application, which is TOTALLY
INTEGRATED into the Resolution database. In the former case,
the user applications provides
the equations to the DLL procedure while in the
latter case all of the equations are automatically derived from the existing
plant configuration defined in the database.
Features and benefits
Reconciliation Engine
- Memory-economic solution procedure.
- Can run in DCS application
models with memory limitations.
- Ability to express complex constraints (linear,
nonlinear, equality, and inequality).
- Inequality constraints eliminate
the meaningless ‘negative-flows’ in
reconciled results.
- Can create complex mass, volume, energy and other
constraints.
- Fast, robust and accurate.
- Quickly see the reconciled results.
- Can be fully integrated into client applications.
- Use from within Excel user-written application.
- Use in ‘real-time’ mode from within a real-time
database application.
WEB-Based Application
- Uses the existing plant flow-sheet configuration defined
in the RESOLUTION database.
- Any changes made to the configuration are automatically reflected
in the equations.
- Only ONE Resolution model for ALL applications.
- Eliminates the expensive
and difficult to manage duplicate plant models.
- Obtains the location and meaning of measurements from the
database.
- Resolution understands the meaning and location
of measurements within context of the plant model.
- Has direct
access to the measurements, either stored within the Repository
or in another real-time
database circumventing
the need
for a cumbersome
interface.
- Eliminates the majority of system interfaces.
- Measurement quality information like tolerances,
maximum and minimum values are also
obtained from the database.
- Inherently tracks
tolerances and estimated accuracy over time.
- The solving procedure
enables adjustment of measurement values or tolerances directly
on the grid that displays all the solution results.
- Eliminates the need to go to different objects (as in a GUI)
to make those changes.
- The results can be directly stored backed into the database
with automatic generation of XSL-style material balance reports.
Any user-preferred
report generator like Business Objects or Crystal Reports
available form third parties can also be used with many variants
of material
balance views.
- Comes with a Reconciler Explorer, which enables a user to
navigate through the entire plant configuration with actual
and reconciled
values for a specified period displayed alongside each
configuration component.
- It provides a check on the connectivity
of the configuration in terms of missing movements or transactions.
- This is far superior to using a GUI, which while eye-catching
in the initial stages can become extremely cumbersome
to use, navigate
and maintain.
Reconciler WEB-Based Application Interface
The following screen shots show the various facets of the interface.
On the top part of the interface window, the user specifies the parameters
of the reconciliation problem to be solved while in the bottom half
of the display the reconciled results are shown organized in various
tabs. Not only can the user view the results, but they can also edit
the values on the spot prior to re-solving the problem.
Fig (i): Interface after loading and initialization
Fig (ii): Variables Tab displaying the reconciled results
The Reconciler also shows a summary of all the mass balance constraints.
This is important to show where the balance problems lie.
Fig (iii): Constraints Tab showing the constraint-related information
The following view shows the Diagnostics tab, which identifies the
specific problems (measurement or balance problem), lists them in order
of significance, and recommends the corrections that should be made.
Fig (iv): Diagnostics Tab showing the errors
The following view shows the pop edit window to edit a specific value.
In this case the measured value of the Recycle stream, which had the
largest error is being edited.
Fig (v): Editing a variable value
Reconciler WEB-Based Explorer
The screen shot shows the path traversed from a battery limit of one
unit via a movement to the battery limit of another unit and ultimately
to other battery limits of that unit. This navigation process can continue
till all units are explored. A different unit can also be used as a
starting point. Note the actual and reconciled values displayed by
each battery limit.
The Reconciler Explorer does not have to be built as in a GUI; the
Explorer is derived from information already stored in the database
Fig (vi): Reconciler Explorer with [Actual:Reconciled] values
Reconciler Mass Balance Report The view shows the mass balance reports for the overall unit and also
for the individual vessels within the unit. In the case of a larger
envelope as in a plant, the report will be at the unit level only.
Fig (vii): Reconciler Mass Balance Report
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Shows a 
solution.