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REGAP Refinery

Supervision and Control System at REGAP

Altus was responsible for the development and implementation of the Supervision and Control System at the Gabriel Passos Refinery (REGAP), part of Petrobras.

Optimization of the control and supervision system

The Supervision and Control System provided by Altus at the Gabriel Passos Refinery, located in Betim, MG, oversees a range of operations, including the measurement station (Emed), the LPG measurement station, the spent caustic oxidation unit, the pressure relief system, oily wastewater, the water-oil separator, and aqueous waste treatment.

Through various communication interfaces developed by Altus, the system integrates seamlessly with other refinery systems, such as the process DCS, product tank level and temperature meters, and more

Panel Modernization

Reduction in space and wiring, resulting in increased reliability, cost savings, and enhanced supervision and control capabilities

Remote Operation

Reduced human risks in local operations and optimized response times during emergencies

Control and Supervision

The interface with the DCS enables complete control and supervision of all monitored I/O points in the process area

Seamless Integration

An open architecture design ensures easy integration with third-party equipment and protocols

Funcionalidades da aplicação implementada

Core Functions of the Implemented System

The system provides the following essential functions for the Setrae/REGAP units:

- Acquisition of discrete and analog data

- Monitoring variables, providing necessary alarms for operators

- Execution of interlock logic

- Implementation of PID control logic

- Bidirectional data exchange with the Supervision System using Fix Dmacs for Windows

Redes de comunicação utilizadas no projeto

Communication Networks Used in the Project

The ALNET II process network, built with fiber optics, is deterministic and multi-master, operating at 1 Mbps. It connects the main Programmable Controller in the Final Area Control Room with the remote Programmable Controllers in the Control Rooms of Unit 37 and Emed. The ALNET I network links the two Supervision Stations to the main Programmable Controller.

One station connects directly via a conventional serial channel, while the other uses the AL-2005 coprocessor, allowing both stations to access the same system database.

The MODBUS network connects the main Programmable Controller to the DCS via the AL-2005 coprocessor.

Interfaces with intelligent transmitters are also established using the AL-2005 coprocessor in the Altus Programmable Controller.

O escopo de equipamentos utilizados na solução

Equipment scope used in the solution

- 3 Altus AL-2002/MSP Programmable Controllers

- 2 Fix Dmacs for Windows supervision software packages

- FOCOS (Fiber Optic Communication System)

- Specific communication protocols: MODBUS and telepulse system

- 3 AL-2005 coprocessors for interfacing with intelligent transmitters, DCS, and microcomputer

Características específicas da aplicação

Application specifics

- I/O Count: 285 digital points and 304 analog points

- Supervision Software: Fix Dmacs for Windows

- Special Features: Priority Messaging, fiber optic communication (FOCOS system)

- DCS interface via MODBUS protocol, and Telepulse System for intelligent transmitters