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ADVANCED  CONTROL

PROCESS SYSTEMS


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System Philosophy

To minimize operator presence in machine and utility areas, supervision and control of the entire vessel will be performed from a central, continuously manned location, normally the Central Control Room.


The user-friendly AC design provides the following important features:


Increased safety

  • Redundant ring communication network
  • Distributed I/O stations (with the degree of redundancy as required)
  • Stand-alone, redundant, multi-functional operator workstations
  • Modular standard hardware
  • On-line diagnostics
  • Supervision of sensor interfaces and machinery operation
  • Well proven concept


Cost Effectiveness

  • Standard "of the shelf" hardware and software
  • Reduction of cabling, due to extensive use of remote I/O
  • Less hardwired mimic and console instrumentation
  • Self-diagnostic features
  • Reduction on spare part requirement
  • One supplier, fewer interface problems


Service & Support

  • Extensive operator training possibilities
  • Trained personnel available on short notice
  • 24 hour on-line support (via satellite communication if required)


System Integrator

An AC integrated automation system offers several advantages compared to conventional "stand-alone" systems.


Experience has taught that trying to combine several autonomous sub-systems, supplied by various vendors, into one common operator interface may not give the optimal solution, either technically or commercially. The client is left with the responsibility for defining and coordinating all the interfaces between these sub-suppliers. This consumes a lot of effort and resources, often without the expected results.


By taking advantage of the established knowledge and experience, we will take full responsibility for the complete delivery, including interfaces, integration and the functionality of the whole system


AC easily handles interfaces which are based on open standards and encourages their use. If necessary, the Systems used by AC do have the possibility for developing customized interfaces.


Supervisory Controller & Network

A programmable logic controller (PLC) is the master controller for the system. Remote I/Os are used to optimise cabling / hook-up and allow for individual Skid / Equipment testing at manufacturer workshop


Remote I/O nodes are connected to the PLC controller via a fiber optic, high-speed network. Field bus is used as the system's backbone for deterministic transfer of monitoring and control signals. Local or remote analog and digital input/output devices connect directly to the PLC for operator station controls and system status monitoring


The software is developed by utilizing PLC programming tool and is designed to make it simple to operate and maintain the system in the field.


The PLC program is stored on removable Flash EPROM media. Software updates and hardware replacements are possible with a simple plug-in module.


Operator Environment (HMI)

Daily operation of the process will be from a set of MS Windows based Workstations (PCs). Operator station architecture will be based on a "server/client" or "multi-master-system", designed as independent network nodes to ensure optimal reliability.


A standard Ethernet network, with redundancy options, shall be used for transfer of large data volumes and co-ordinating tasks between the PCs. This may be tied together with an administrative network for transfer of vital data.

Multiple PCs are simply added to the same network as required.


The Operator Screen has the following features:

  • Graphics display
  • Display of Alarm & Status conditions
  • Logging of Alarms and Events
  • Display of 3.party Graphics and Data
  • Interface to other systems on Ethernet IP


The Human Machine Interface (HMI) is developed by Citec programming tool and is designed to be as self-explanatory and easy to operate as possible for relevant personnel.


All information is presented via graphical screens. The figure below shows an example of the screen layout. Pointing and clicking buttons and objects in the screen can reach all functions of the PCS-system.


Remote Access & Data transfers

The development system also offers remote access capability where an access link to a remote location can be established. This allows diagnostics, software maintenance and downloads to be carried out without a specialist engineer being required on site. Data transfers to control room on-shore can easily be set up and routed via Ethernet.


Control system References

AC's personnel have been involved in delivery of several PCS systems using different display software, PLC manufacturers and architectures. Our Automation product range comprises:


  • Process Control and Monitoring Systems
  • Wellhead and Poduction Manifold
  • Separation and Stabilisation
  • Water, Gas and Chemical Injection
  • Produced Water Treatment
  • Flare and Fuel Gas
  • Power Generation and Distribution
  • Pumps and Compressors
  • Heat Exchange
  • Turret Turning
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ADDRESS

Advanced Control AS
Fabrikkveien 9
4033 STAVANGER

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ADVANCED CONTROL

Our Business consept is to supply user friendly, technical reliable and cost effective turnkey solutions to our clients

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