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A distributed control system (DCS) is a computerized control system for a process or plant usually with many control loops, in which autonomous controllers are distributed throughout the system, but there is no central operator supervisory control. This is in contrast to systems that use centralized controllers; either discrete controllers ...
A distributed control system (DCS) is a digital process control system (PCS) for a process or plant, wherein controller functions and field connection modules are distributed throughout the system. As the number of control loops grows, DCS becomes more cost effective than discrete controllers.
An OTS uses a dynamic simulation of the process in order to generate the appropriated data to feed an emulation of the plant's control system. The elements of a typical OTS are the following: [1] Dynamic simulation software [1] Process model [1] Instructor interface [1] Control system integration software [1] DCS emulator [1] Replica of the ...
Base-Layer: Includes DCS, SIS, field devices, and other DCS subsystems, such as analyzers, equipment health systems, and PLCs. BPCS: Basic process control system (see "base-layer") DCS: Distributed control system, often synonymous with BPCS; MPO: Manufacturing planning optimization; MPC: Multivariable Model predictive control
In smaller SCADA systems, the supervisory computer may be composed of a single PC, in which case the HMI is a part of this computer. In larger SCADA systems, the master station may include several HMIs hosted on client computers, multiple servers for data acquisition, distributed software applications, and disaster recovery sites.
Consolidation of data from different sources (Enterprise Resource Planning (ERP), Laboratory, Distributed Control System (DCS)...) Integration of off-line data (laboratory, calculations, future load profiles) Access via the company-wide intranet also from offices. Via Web (Thin client) or Tcp / Ip (Fat client) Enriching / refining raw data
OPC servers provide a method for different software packages (as long as it is an OPC client) to access data from a process control device, such as a programmable logic controller (PLC) or distributed control system (DCS). Traditionally, any time a package needed access to data from a device, a custom interface or driver had to be written.
The system is also designed to accommodate multiple wells, and integrate with the major distributed control systems (DCS) and subsea equipment types. The UMCS also offers a pre-engineered solution based on a standardized program block architecture and a common communication database via the Standard Interface, based on OPC.