Control of Full-Case Merging Conveyors.doc, Control of Full-Case Merging Conveyors.pdf, http://www.urswriter.com/ControlOper...hilosophy.html, http://www.urswriter.com/ProcessDescriptions.html, 3 way Control Valve from Siemens with Beckhoff PLC. Too much detail is not good either. functional control definition in English dictionary, functional control meaning, synonyms, see also 'functional calculus',functional disease',functional group',functional illiterate'. On failure of logic system, in between , the failure shall be annunciated to the operator and all the valves corresponding to that unit, being regenerated shall close automatically. The Electric Power Research Institute reco… These functional relationships are also illustrated by the diagram in figure 1. with the associated system. 15.4.1 CONTROL PHILOSPHY OF COAL HANDLING PLANT. The system will employ a logical system, which will link the various steps such as closing/opening of different valves, starting/stopping of various pumps, which make a sequence. This is for the sub-contractor System Integrator. iii) The clarified water storage sump level is controlled by raw water inlet control valve with respect to the level in the clarified water sump . In Ozz it is usually referred to as a 'functional specification'. These cabinets shall accommodate I/O cards, relays, interfacing equipments etc. 15.4 SPECIFIC control system REQUIREMENTS. For example, keep it simple, make the HMI operator friendly, and thoroughly document the logic are philosophies. However, subsequent transfer of alkali to respective ion exchanger units will be automatic. i) In order to have ease of operation and maintenance, the l Control Room of DM plant shall have control desk in which the operating station along with CRT and keyboard will be mounted and the control panel shall have the Plant water system mimic, indicating lamps, push buttons, control switches, indicating instruments/recorders etc. The SV-4 addresses human and system functionality. Fly ash system, comprising of ash extraction from ESP’s & duct hopper to buffer hopper located near ESP’s and fly ash transportation system from buffer hopper to storage silos. A system control philosophy is a document that is used to describe general principles of operation. A functional specification may also contain formal descriptions of user tasks, dependencies on other products and usability criteria. Kalu Idika Awa ... concept as those features of the organization that serve to control or distinguish its parts‖, Gibson, Ivancevich, Donnlly Jr and Konopaske (2003). Control Philosophy 8/28 Fennagh WWTP – Ref No. Business that lag behind competitors can implement company-wide operational strategies to close the gap. ( control for CW water treatment, Raw water treatment). We have broken this need down into two broad categories: Functional Support and Technical Support. The functional flow diagram shows functions connected by data and control flow arrows. What’s the difference? All necessary instruments /controller and interlock /protection /monitoring and sequential logics controls shall be provided for implementation andare achieved by PLC. Actually, the functional requirement document should be well designed, clear and easy to understand the system for the readers. More time and detail upfront also can help prevent changes—sometimes known as ‘feature creep’—later in a project that could push it beyond original requirements. vi) Hooking up with central control room DDCMIS will be done through proper gateway and communication cables. For local operation in the Bottom Ash area one (1) no. of facia type annunciation windows for audio-visual summary fault annunciation purpose. It is the cornerstone of how the system will operate. A functional manager manages and owns the resources in a specific department, such as IT, engineering, public relations, or marketing, and generally directs the technical work of individuals from that functional area who are working on the project. A functional specification can better define a control system’s requirements Picture this: Your brand new desalinization plant takes up to four hours to start, and that is if the one operator who has a piecemeal understanding of the controls is available. The control of all the drives and auxiliaries shall be implemented from this panel. Replace strip chart recorders with historical recording and trends, etc. Develop a clear description of the necessary data flows that are input (consumed) by and output (produced) by each resource. The standby pump shall also operated automatically in case the operating pumps trip. c. The system shall provide an integrated control & monitoring of coal handling plant equipment from a Main CHP Control Room. one day, perhaps you will find the final G.K. Chesterton, The Scandal of Fa question. iv) All the chemical dosing/solution tank shall be provided with local level indicator and low level switch ,which shall be interlocked with respective dosing pumps i.e the pump shall trip in case of the low level in the respective tank. iv) The system cabinets associated with other system/equipment being controlled from main control room shall be located in the main AHP control room. The main switchgear will be housed in the main control room building for CHP and located near the crusher house, the I/O cards and the relays for drives and the equipments which are around the crusher house shall be mounted in the system cabinets which are located in the main control room building. Drive status feedback (ON/OFF). d. Ash slurry disposal system. SV-4: Systems Functionality Description. The Control System shall be comprising a Processor Unit, Input./Output modules, LCD screen display The PLC l will be housed in local control panel located in compressor room/compartment. (8) FUNCTIONAL DESIGN SPECIFICATION (FDS) This document specifies the functional and technical requirements of the system. Differential pressure across the filter bed. d) CW treatment plant local control panel, e) Transfer of acid/Alkali local control panel for DM plant, f) Any other control recommended by contractor. vi) Steam flow to HFO/LSHS storage and day tank floor coil heater shall be controlled by pneumatically operated control valve (ON-OFF type) to maintain the desired oil temperature. Operational Controller Vs. Financial Controller. v) The control panel shall be provided with adequate nos. The variables include parameters measured by field instruments; status signals from pumps, valves and other equipment; and information passed be tween the field instruments, equipment, and the smart relay. Local control panel-1 shall be placed at fuel oil pump house for control and operation of HFO/LSHS & LDOunloading, storage and transfer operation. The term has its origins in the hardware field. Enrich your vocabulary with the English Definition dictionary Operational-level strategy applies to company-wide operations, while functional-level strategy covers decisions at the departmental level. iii) The system cabinet associated with various local controls shall be located near the local control panels. A functional analyst is a type of business analyst who specializes in a specific technology, line of business, domain or industry. These pumps trip automatically when the level in the source storage tank goes low or the level of respective day oil tank goes high. iii) The transfer pumps to day tank shall be started manually from push buttons in the above local control panel-1. i) The overall operation and control of the entire Coal Handling Plant, with acontrol desk and suitable control panel will be provided at the Main CHP Control Room . Then, It is that they can't see the problem. Functional job titles are common in organizations, and follow the philosophy that the best title for a particular position is … as well as recording the tuning parameters as-found. Functionalism is a viewpoint of the theory of the mind (not to be confused with the psychological notion of one's Theory of Mind).It states that mental states (beliefs, desires, being in pain, etc.) a. viii) DM plant PLC system shall be provided with suitable communication gateway for monitoring through DDCMIS in central control room. vi) One communication gateway along with suitable cables shall be provided for hooking up the ash handling control system with DDCMIS control system located in the central control room of the power plant. of Raw Water system and associated clarified sump pumps, Raw water chlorination system, service water pumps, CT make up pumps, Potable water pumps control, DM feed pumps etc.shall be provided from DM plant control room. v) Each air dryer shall be provided with independent microprocessor PLC, heater, set of absorber . However, the term is sometimes used synonymously with IRS, and even to embrace the information content of an IRS and an IDD together. The PLC system shall be an integrated control and data acquisition system for providing control & monitoring of Plant water system from a DM plant Control Room. The document can include anything from flowcharts, screenshots, and wire frames. It should be comprehensive and miss nothing. The PLC system shall be an integrated control and data acquisition system for providing control & monitoring of Ash handling plant from a Main AHP Control Room. c) Chlorination plant local control panel for potable water system. INLET WORKS 1.1. ICEweb has nearly 100 Control, Instrumentation, Fire & Gas, Safety Instrumented Systems core pages and a total of more than 300 pages - It Really is Cool Engineering - By Engineers for Engineers it must be just about the World's first choice for Technical Information. The graphic shall indicate the different filters, exchanger units, measuring tanks, opening/closing of all valves (motorized and solenoid operated), ON / OFF of different pumps and blowers etc. It has its origins in the works of Emile Durkheim, who was especially interested in how social order is possible or how society remains relatively stable.As such, it is a theory that focuses on the macro-level of social structure, rather than the micro-level of everyday life. These pumps will also be prevented from starting in case of low level in the respective source storage tank, or high level in respective day oil tank or high pressure drop across the respective suction strainer. i) Two no control panels (Local control panel-1 & Local control panel-2) are envisaged for control and operation for fuel oil unloading, storage & transfer system. the alarm facia windows. Firstly, it helps to use software that has good version control. Automatic process control in continuous production processes is a combination of control engineering and chemical engineering disciplines that uses industrial control systems to achieve a production level of consistency, economy and safety which could not be achieved purely by human manual control. 1728 May 2008 Rev. Functional analysis divides a system into smaller parts, called functional elements, which describe what we want each part to do. From a designer's point of view, the functional specification is the basis for design. and the alarm fascia windows at the top. The annunciation system shall also include alarms for abnormal level conditions in caustic solutions preparation cum recirculation tanks. Definition of Management Control: The management function of implementation of strategies is termed as ‘Management Control’. Functional decomposition breaks down a large, complex process into an array of smaller, simpler units or tasks, fostering better understanding of the overall process. end and begin with the answers. The BPO document is a process state/operations description, and it is mostly implemented in the process controller and not in the operator interface (HMI). Many young cocks who have some sort of degree/certificate in programming reckon they can program anything from a functional specification. Functionalism could be a philosophical theory about psychological explanations (that psychological states are explained as functional states) or about psychological theories (that psychological theories take the form of functional theories.) Color coding shall be used to differentiate lines for different services such as normal water lines, backwash lines, Acid / Alkali lines etc. Functional vs Technical IT Support for SMBs. v) A window based annunciator system shall be provided in local control panel for all major alarms/trip conditions. A Control Philosophy incorporates the process functions on the plant and specifies the control parameters, operational and maintenance philosophies . Once approved, it will be one of the documents used to assist in the development of the control narrative and will help facilitate the HazOp or PHA. iii) Each compressor shall be suitable for individual and / or parallel operation with other compressors at any demand rate from zero to maximum capacity . I suspect what the owner really wants are a functional description or loop descriptions. Emergency trip push buttons shall be provided for all such drives which needs immediate stopping due to any mal- functioning of equipment or due to health/operator hazards. Approach your problems from the right It isn't that they can't see the solution. The design of the control system and related equipment shall adhere to the principle of Fail safe operation of all system levels i.e the failure of signal, failure of power or failure of any component should not cause a hazardous condition and at the same time prevent occurrence of false trips and provide reliable and efficient operation of the plant under dynamic conditions. The functionalist perspective, also called functionalism, is one of the major theoretical perspectives in sociology. The conductivity cell in the rinsing line shall be automatically isolated during the first half of the rinsing cycle and shall be connected automatically during the second half of rinsing cycle when the conductivity is less than 100 micromhos/cm excess over the rinse water conductivity. i) The pre treatment plant is controlled from PLC, and the chemical dosing is envisaged only in manual mode from local. The system will incorporate the necessary safety systems, locking systems and manual emergency system. Acid shall be subsequently transferred to acid dosing tanks by using above unloading pumps. The system cabinets shall be suitable for protection class IP-65 . That is usually the big stumbling block. for various drives/ valves /equipments in DM Plant control room. Functional Design Specifications (FDS) 3 Figure 1.1 Control system design The FDS should cover: • Control Modules such as PID Loops, indicators etc • HMI Graphic displays • Equipment Basic Control • Phase Logic • Operations • Unit Procedures • SCADA Recipes • The Inputs and Outputs of the systems with cards and channels assigned to them. Process Description Inlet screening Flow enters the inlet works in … There’s a lot of information on the Interweb about how to write a functional specification (FS for short, aka software requirements specification, system specification, product specification. For example, keep it simple, make the HMI operator friendly, and thoroughly document the logic are philosophies. The differential pressure across the suction duplex strainer high initiates alarms to change the duplex strainer position. c. Fly ash system, comprising of ash extraction from ESP’s & duct hopper to buffer hopper located near ESP’s and fly ash transportation system from buffer hopper to storage silos. Posts about CONTROL PHILOSOPHY written by shivajichoudhury. The philosophy behind a framework, such as ITIL, is to build a conceptual model of how each area of the business works. On selecting the option the regeneration cycle shall start automatically. This permits capturing whether the loops are PI, PID, cascade, ratio, direct/reverse, ranges, etc. 01 1. Acceptance testing of the control system confirms that the requirements specified in the functional specification are complied with. In the auto mode ,the rate of acid dosing shall be controlled by auto adjusting of the stroke of the pumps by sensing of ph of circulating water. ii) The following local control panels are envisaged .which are located near their associated system. unloading pumps into over ground acid storage tanks. Functional Design Specifications (FDS) 3 Figure 1.1 Control system design The FDS should cover: • Control Modules such as PID Loops, indicators etc • HMI Graphic displays • Equipment Basic Control • Phase Logic • Operations • Unit Procedures • SCADA Recipes • The Inputs and Outputs of the systems with cards and channels assigned to them. Just describe what the system (or the sub-section that is within you scope of supply) is going to do. The control & instrumentation shall be through microprocessor based PLC system for the entire Ash handling plant covering the total functional requirement of sequence control, interlock & protection, monitoring, alarm data logging etc. The control panel shall have operators interface devices as selector switches, indicating lamps, push buttons and other required indicators. ix) One communication gateway shall be provided by hooking up the system with DDCMIS for monitoring from central control room. Functionalism is a viewpoint of the theory of the mind (not to be confused with the psychological notion of one's Theory of Mind).It states that mental states (beliefs, desires, being in pain, etc.) Functional specifications can help internal projects run more smoothly. iii) During normal operation sulphuric acid dosing pumps shall operate in the auto mode and inject sulphuric acid to maintain the ph of circulating water at desired level so that alkalinity remains with in desired limits. 'Slimline' specifications DO NOT work and leave the customer wide open for variations. for the Traveling Trippler drives and equipment shall be located in its MCC room to provide status indication /alarms for traveling Tripler operation in the main CHP control room. The remote I/O and relays will be provided on operator’s cabin of stacker –re-claimer to indicate Stacker re-claimer operation in the main control room. Functional structure and operational issues: An examination of core challenges and remedies. Bottom ash over flow system comprising of bottom ash over flow water storage tanks, settling tank, ash over flow water pumps, sludge pumps etc. This might even result in the creation of a new requirement. At a minimum, an FDS will contain an organized list of requirements that can be used for… Download Functional Analysis And Control Theory online right now by in the same way as link below. The Taxonomic Functional Hierarchy may be particularly useful in capability-based procurement where it is necessary to model the functions that are associated with particular capability (see SV-5). Then you simply describe how the controls should operate. The intensity of the debate is particularly strong in companies that maintain a strong functional hierarchy. CHP main Control Room will house system cabinets in addition to control desk. 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