Supervisory control and data acquisition

Determination of critical assets that might be subject to malevolent acts that could result in undesired consequences What are the malevolent acts that could reasonably cause undesired consequences on these assets electronic, computer, or other automated systems that are utilized by the public water system (e.g., Supervisory Control and Data Acquisition (SCADA)) the use, storage, or handling of various chemicals the operation and maintenance of such systems... 

Ezell, B. C. 1998. Risks of cyber attack to supervisory control and data acquisition for water supply. PhD diss., University of Virginia. 

Intrusion through Supervisory Control and Data Acquisition (SCADA)... 

W. Cyber-security/Supervisory Control and Data Acquisition (SCADA) system attack response (other than incident-specific, e.g., hacker)... 

System interface with hardware supervisory control and data acquisition (SCADA) program... 

Control of the field occurs on two levels. The upper level Is the supervisory control and data acquisition (SCADA) system whose main responsibility is well flow rate control, well testing, production allocation, accounting and general field monitoring. The SCADA system is operated from the Main Operations Center (MOC) which is remote from all three GCs. The second level of control is process control in the individual GCs. Flow to the GCs Is normally controlled by the SCADA system (HOC operator), but the GC operator can override and control well flow rates in case of SCADA system failure or other unusual circumstances. The GC operator and the MOC operator communicate via a dedicated telephone connection. 

Since the operation is in an arctic environment, achieving the above objectives presents particular problems and would be difficult and Inefficient using the more conventional approaches. Therefore, as part of the original facilities a "supervisory control and data acquisition" (SCADA) system was Installed in the VfOA. The operational philosophy is one where, by means of the SCADA system, the functions necessary for reservoir management and production control could be monitored and controlled from a central location called the Main Operations Center [Pg.57]

The original WOA supervisory control and data acquisition system was configured around the Honeywell HS4400 process computer. Two 4400s in dual redundant processor configuration were installed with automatic failover to the standby should the online unit fail. Each 4400 has 96K of 24-bit word magnetic core memory and a 1.3 million word drum. 

The crude oil delivery system starts with relatively small-diameter gathering lines from individual producing wells to a main-line pump station, from where it is pumped through a larger transmission trunkline to a refinery or other destination. At the refinery, the cmde oil is separated into gasoline, jet fuel, kerosene, distillate fuel oil, etc, and the refined products are transported by products pipelines to markets, storage, shipping terminals, etc. In modem lines, all inputs and outputs are metered, monitored, and remotely controlled by supervisory control and data acquisition (SCADA) computer systems. 

Microprocessor-based control systems are marketed under a variety of acronyms and not all will be true DCCSs. Of particular note are the Supervisory Control and Data Acquisition (SCADA) systems which form an increasingly central part of the operations of many industries (e.g. offshore oil and gas platforms, petrochemical complexes, pulp and paper works). SCADA describes a communications system whose principal function is to join instrumentation and control into a cohesive package(57) and, particularly, the supervision and management of remote ... 

Supervisory control and data acquisition Solid-state relay Self-tuning regulator Temperature recorder controller Transistor-transistor logic Zero order hold element... 

Stand-alone systems. Multiloop controllers) or programmable logic controllers (PLC) typically used to control part of a process, and larger supervisory control and data acquisition (SCADA) systems/distributed control systems (DCS) used to control the process or service as a whole (e.g., bulk primary production plant, building management systems). These self-contained systems are a component of an automated manu-... 

The control system of the freeze-drying unit provides control, monitoring and documentation of the process. Such a system must be reliable and comply with GM P and GAMP (Good Automation Manufacturing Practice) demands with respect to computer validation. It should be SCADA (Supervisory Control and Data Acquisition) compatible. A possible hardware architecture is shown in Figure 2.55.1. 

Control System Included in this classification are Supervisory Control and Data Acquisition Systems (SCADA), Distributed Control Systems (DCS), Statistical Process Control systems (SPC), Programmable Logic Controllers (PLCs), intelligent electronic devices, and computer systems that control manufacturing equipment or receive data directly from manufacturing equipment PLCs. 

Beaver, C. L., D.R. Gallup, W.D. NeuMann, and M.D. Torgerson, Key management for SCAD A, Scandia National Laboratories, March 2002, Security Aspects and requirements of the Supervisory Control and data Acquisition System, for the Electric Power Grid... 

Larger, commercial installations will also be equipped with a Supervisory Control And Data Acquisition system (SCADA). The SCADA system is connected via a data highway with the PLC(s) used in the system. 

Incorrectly implemented calculations moving averages in Supervisory Control and Data Acquisition (SCADA) systems, material mixing concentrations in DCS systems, flawed shelf-life date calculations in Laboratory Information Management Systems (LIMS). 

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