Chemicals DCS Distributed Control System ISO 3A DCS System

Stucture of DCS - Envisioning Future Process Automation Systems - BJVP

Overview:

As DCS contains the distribution of the control processing around nodes in the system, the complete system is reliable and mitigates a single processor failure. It will affect one section of the plant process; if a processor fails and the whole process will be affected when the central computer fails. This distribution of computing power to the field Input / Output (I/O) field connection racks also ensures fast controller processing times by removing possible network and central processing delays.

The below diagram showcases the functional manufacturing levels using computerized control:

Referring to the diagram;

Level 0: It consists of the field devices such as temperature sensors, flow, and final control elements such as control valves.

Level 1: It consists of the industrialized Input / Output (I/O) modules, and their associated distributed electronic processors.

Level 2: It is included with supervisory computers that help to gather information from processor nodes on the system, and provide the operator control screens.

Level 3: It is the production control level, which does not directly control the process, but is concerned with monitoring production and monitoring targets.

Level 4: It is the production scheduling level

On the other hand, Level 1 and Level 2 are the functional levels of a traditional DCS, in which all equipments are part of integrated systems from a single manufacturer.

Levels 3 and 4 do not strictly process control in the traditional sense, but where production control and scheduling takes place.

BJVP exceeds the needs of operators throughout the product lifecycle.With the international mainstream DCS as the core of the system, BJVP has developed a new generation of open-source factory automation control system for intelligent production/manufacturing: VPBATCH® and VPBLEND®.

VPBATCH® System:

VPBATCH® Batch Control System designed, developed and copyrighted by Beijing VP for Lube-Oil blending batch management.

VPBATCHE® Batch Control System suits for any Lube-Oil blending application can be connected to most mainstream of automation control system (DCS or PLC). VPBATCH® provides modular OP interface, flexile batch data configuration, open-source mode for recipe management. Batch configuration can be modified by on site operable no need to wait for processional systems engineer to modify various batch parameters. VPBATCHE greatly improves production efficiency of Lube-Oil blending.

Advantages:

1. Modular OP interface

2. Flexible batch data configuration

3. Multi-brand automation control system connection

4. Open-Source mode for recipe management

5. User-owned batch parameter settings

VPBLEND® System:

VPBLEND® Blending Control System designed and implemented by Beijing VP for Lube-Oil blending, product transfer and storage facility. VPBL ENDE application running on the Sever PC coordinates all real-time blend control algorithms running on the DCS, maintain configuration data, batch data, process runtime data and historian data.

VPBLEND® able to respond quickly to market demands, producing high-stand, quality products with significantly reduced manpower and inventory cost. VPBLEND® solutions specifically developed for the blending industries with the will to the company assets, to react quickly to customer demands with the permanent care of product quality and plant productivity.

Advantages:

1. Modular

2. Open Structure

3. Batch Management

4. Blending Process Monitoring

5. Quality Control 

6. Intelligence Operation

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