Abstract—In case of changing a communication between field instruments and controller from analog signal into digital signal or of changing a model of plant, performance of controller is degraded because of the fixed controller parameters such as PID controller. To solve this problem, a self-tuning PID controller is proposed. One of a popular self- tuning method is self-tuning fuzzy. Many researchers have been presented the self-tuning fuzzy PID controller. In this paper, we present implementing of self-tuning fuzzy PI controller for flow controlsystem. Both fuzzy and PI controller is implemented on distributed controlsystem (DCS) as controller at which communication between field instruments and distributed controlsystem is via both the analog input and output modules as analog signal in range of 4-20mA and digital signal as Profibus PA. The PI controller parameters, proportional gain and integral time, from auto-tuning method is used to control plant, flow controlsystem, by using analog signal at which result shows that flow process variable reaches to flow set point. The same PI controller parameters is applied for PROFIBUS PA at which results shows that flow process variable oscillates because of effect of delay-time taken place from communication between field instruments and distributed controlsystem.
The purpose of the programming is to implement the functions described in Chapter 2. Section 3.3 discussed the programming architecture of this project. Modules of the programming architecture are implemented by programming. Under the structure, as shown in Figure 3.19, modules of STOP_SYSTEM and SEQUENCE are step by step with sequence in nature and, thus, are programmed using SFC language. For the STOP_SYSTEM, when the operator wants to stop the system, the system is reset to original status, i.e. all valves to normal status: open for NO (normal open) valves and closed for Normal Close (NC) valves; all the heaters, and pumps are stop; and all the tanks are empty. The operation of these devices is sequential. The main purpose of the SEQUENCE is to fill up the pipes and tanks. The filling procedure is step by step. Refer to Figure 2.4 in Section 2.3 for the logic procedure and Section 2.3 for more function details. The Pressurizer is first filled up and then the HX Tanks. The Upper Tank is the last one to fill up; therefore, they are programmed using SFC language. Detailed programming is shown in appendix D.
The hardware configuration of the controlsystem isbasically the combination of RFID reader, fingerprint sensor, a DC motor, a relay driver circuit and a microcontroller (PIC16F887A). The complete circuit diagram of project can be divided in three different sections:
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Usually a capsule complex controlsystem is based on magnet coils system, which generate magnetic field to move the capsule in the necessary direction and in case of need to make distance recharge of power element within the capsule. Accuracy and capsule movement speed depends on magnet parameters. That is why the main attention should be paid to magnet systemconfiguration.
shaped welded tube detailed as per regular palm size of the pilot. The pedal adjustment bracket is welded to the pedal and is connected with the locking system with pin supported on slotted spring system. The pedal is hinged to the torque tube; whereas locking system is permanently welded to the torque tube. Once the pedal is moved to the desired position, it gets locked with the locking system and becomes integral part of the torque tube. Springs are provided at each pedal to bring back the pedal to the original neutral position when not in use. Wheel brake application system is provided in the cockpit. They are designed as toe brakes. The brake pedals are in the form of L-shaped tubes hinged to the top of the rudder pedal as shown in Figure 2. The brake cylinders are attached to the torque tube at one end and toe brake pedal on the other end and adjusted to achieve required stroke length for brake application.
Energy in electrical kind, excluding being clean, is generated (converted from different natural forms) centrally in bulk; is simply controlled; transmitted efficiently; and it's easily and expeditiously pliable to different types of energy for varied industrial and domestic applications. It’s thus a sought after variety of energy and is a vital ingredient for the commercial and well-rounded development of any country. The generation of current (by changing different naturally on the market types of energy), dominant of current, transmission of energy over long distances to different load centers, and distribution and utilization of current along is called Associate in Nursing electric power system. The scheme that generates current is named generation scheme or generating plants (stations). It consists of generating units (consisting of turbine- generator sets) as well as the required accessories. Speed governors for the prime movers (turbines; exciters and voltage regulators for generators, and increase transformers also kind a part of the generating plants. The scheme  that transmits the current over long distances (from generating plants to main load centers) is named transmission scheme. It consists of transmission lines, control transformers and static/rotating volt-ampere units (which area unit accustomed management active/reactive powers). The sub system that distributes of energy from load centers to individual client points along with finish energy changing devices like motors, resistances etc., is called distribution subsystems. It consists of feeders, change of magnitude transformers, and individual consumer connections together with the terminal energy changing electrical instrumentation such as motors, resistors etc. Electrical energy cannot be hold on economically and therefore the electrical utility will exercise very little control over the load demand (power) at any time. The ability system should, therefore, be capable of matching the output from the generators to demand at any time at such voltage and frequency. With the constant increase within the current demand, a lot of and a lot of generating units, the transmission lines and distribution network together with the required dominant and protecting circuits build the ability system an oversized advanced system. It’s thought of as one of the most important artificial systems. Therefore extremely trained engineers area unit required to develop and implement the advances of technology for designing, operation and management of power systems.
A controlsystem based on WinCC OA was developed to manage the processing of the offline data on the HLT farm. It is able to monitor and control all the worker nodes on the HLT farm which are organized topographically with farms and subfarms as explained previously. Each worker node can adopt independent configuration and some of the settings that can be used are:
Several techniques (e.g. branching, merging etc.) are used to manage the work products of a software project on configuration management repository. Configuration items consist upon deliverables and non-deliverables of a project. The deliverable work products are important configuration items; hence, those require extra considerations during their development. The delay in completion or any conflict in such work products leads to more risky state of project. Scott and Nisse (2001)  believed that all items, on which multiple practitioners are expected to work on, should be maintained under configurationcontrol to manage the changes in controlled manners. Software project developed by collocated teams usually consists upon single configuration management server. Multiple, collocated members of software development team interact with configuration management server to accomplish their day to day tasks. Access rights are implemented on repositories of configuration management system by providing certain rights to users of configuration management system. These rights are managed by configuration engineer or configuration administrator. A simplified example of a configuration management system is shown in Figure 2.
There is no single solution or technology for network security that fits the needs of all organizations and all applications. While basically all computer systems are vulnerable to intrusion attempts, the potential consequences of such attempts are vastly different for different types of applications. The security measures that are applied to a specific installation should be proportional to the assessed risk in terms of probability of an attack and the potential consequences. For a small system with a few users controlling a non-critical process this risk is obviously smaller than for a large system spanning multiple sites with safety critical processes in several countries and continents and thousands or even tens of thousands of users. For manufacturing and control systems in particular, the potential impact of an attack includes, for example, violation of regulatory requirements, loss of public confidence, loss of proprietary or confidential information, loss of production, damage to equipment, and endangerment of public or employee safety.
Figures 3-4 show the MATLAB based model of the proposed controller along-with parallel operated isolated asynchronous generators system. The main generating system consists of parallel operated isolated asynchro- nous generators, excitation capacitors, voltage and fre- quency controller along-with balanced/unbalanced, lin- ear/non-linear consumer loads. Figure 3 shows the com- plete model of the proposed electrical generating system while Figures 4(a) and 4(b) show the subsystem VSC control and chopper control. The universal bridge is used to model the voltage source converter for the controller and three phase diode bridge rectifier for non-linear con- sumer load. The proposed system is modeled using 15kW, 415 V, 50 Hz, Y-connected and 7.5 kW, 415 V, 50 Hz, Y-connected asynchronous machines to operate as IAGs. Individual delta connected capacitor banks having rating of 9 kVAR and 5 kVAR are used for generating the rated voltage at no-load. Simulation is carried out in MATLAB version 7.1 using (ode 23 tb/TR-BDF-2) solver and other relevant data are given in Appendix.
Tasks are the leaves in a tree of roles. A role is a runtime subdivision of the complete system, it represents a kind of operation along with its resources. Each task implements one or more roles. Roles allow binding tasks or groups of tasks to specific host attributes, detectors and configuration values. Each role represents either a single task, or a group of child roles. If tasks are leaves, roles are all the other nodes in the control tree of an environment. Thus, for example, one can have a task "readout-bin", which is a child of role "readout-tpc-026". The latter role, in turn, is a child of role "readout-tpc", which is a child of role "readout", which is a child of top-level role "physics-1".
If you want to operate the Electronic-Key adapter with a self-defined DCP name, you can configure the device using a PC. A PROFINET controlsystem is not required during this process. This is the fastest method, particularly if several devices have to be configured. The configuration PC must meet the following requirements:
The Main idea behind this project is as we are wasting so much power unnecessarily. With the use of technology we can reduce the power consumption as well as the security precautions like gas leakages and Temperature in the house hold or industry. Within this project, we were designed and implemented a system called as Zigbee based intelligent home energy management and control service. We had used the ZigBee technology for networking and communication, since it has low-power and less cost, which enables it to be broadly utilized in home and building conditions. The project was developed as a solution for Monitoring and control of household appliances.
Introduction Started Getting Overview SystemConfigurationSystemConfiguration H.323 & SIP Registration Control Zones and Zones and Neighbors Neighbors Processing Call Traversal Firewall Bandwidth Control Maintenance Appendices Once you have created a new zone on the local VCS you must configure it appropriately. For traversal server zones, traversal client zones and neighbor zones this will include providing information about the neighbor system such as IP address and ports. Zones are configured via the Edit Zone page. You will be taken to this page automatically upon creation of a new zone. To access this page for an existing zone:
The sending of “control settings protocol” from control interfaces to the microcontroller is the first step to running an experiment. The content of this protocol is chosen by the user, according to the parameters shown in Figure 4. When these data is received by the microcontroller, the control parameters are validated and the “error protocol” is returned to the control interface to notify that the configuration was successful or if there are any errors in the parameters. In this way, if there are no errors and the command to start the experiment is sent, the second step is executed, in which according to the sample time, the microcontroller sends a sample by the “control response protocol” to the interface that is running the experiment. This process is done periodically until the command to stop the experiment is sent to PIC32 or the experiment time achieves its maximum value of 1 minute. In addition, the controlsystem has the "systemconfiguration protocol" that allows the choice of control interface (display or remote) that will perform the experiment. This protocol is unique to the TFT display due to its purpose of systemconfiguration and controlsystem testing. Finally, the "control query protocol", allows querying in the microcontroller the configured parameters for an experiment.