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The rapid growing of the wide urban residential areas imposes the expansion as well as the modernization of the existing water supply facilities. Along with this one more problem is identified in the water supply channels, some people use ½ HP to 1 HP pump to suck the water directly from the channel of their home street. Process automation system based upon utilization of an industrial PLC and PC...
A PLC can communicate through its inputs and output signals with the plant. The capabilities of PLCs have developed over the years, with reliability, performance, and operational. Developing monitoring in Automation Control System is a major industrial concern since those systems are more and more complex and involved in many safety critical application fields. The Automation system is being widely...
Water treatment plants have to provide good water quality and at the same time low operational costs. Owing to various physical, chemical and biological interactions water treatment processes are often difficult to handle and reliable predictions for the course of processes are difficult to obtain. Developing monitoring in Automation Control System is a major industrial concern since those systems...
Many parameters need to be monitored in the process of coal-bed methane power generation. Based-on further studying in the technics for coal-bed methane power generation, a kind of small-scale distributed control system of low cost but high reliability was designed by combining fieldbus, Siemens S7-300 PLC and WinCC configuration software. The design of the process supervisory system for the coal-bed...
A wheelset disassembly machine is newly designed for dismounting wheelsets using a double-side disassembly technology. This NC machine tool integrates such functions as hydraulic controlling, mechanism positioning and process monitoring with a user-friendly Human-machine interface (HMI). A control system using Siemens S7-200 series PLC is introduced to accomplish these functions. After analyzing three...
The monitoring system mainly by the programmable logic controller (PLC) and Fieldbus (PROFIBUS) composition, using programmable logic controller (PLC) on the medium-density fibreboard (MDF) production lines for real-time data acquisition and control, the use of the scene Line (PROFIBUS) equipment and realization of the scene between the PC rapid data transmission. Using decentralized control, multi-level...
Developing monitoring in Distributed Control System is a major industrial concern since those systems are more and more complex and involved in many safety critical application fields. The Distributed Control System (DCS) is being widely used in Power, Steel manufacturing, Oil and Gas, and Petrochemicals for monitoring, advance process control, regulatory and sequential control and various other functions...
This paper presents the State-of-the-Art and recent trends of SCADA system Architecture, which is usually three-layer SCADA system architecture depending on open system technology rather than a vendor controlled, proprietary technology. A Real-time Industrial process is simulated (boiling system), and a complete three-layer model SCADA system is developed for this process, supervision control layer,...
Adopting the mechanism of transient working system, the article studies the brake and steady installment of the mine belt conveyor - the wheeled anti-lock hydraulic brake. Using the PLC, software and switch sensor, the installment can make the loose brake process safe and controllable, the supervisory system consisted of the speed sensor and PLC can make the brake control the band brake time automatically...
Based on automation project of a ore-dressing plant in Yunnan province, a kind of integrated automation system based on PLC and KingView is studied. Firstly, four-layer DCS frame of the system is dealt with, then fuzzy control rule and realizing method of determining ore-giving setting value by milling machine current is introduced and experience mathematic model of water-giving is established. Lastly,...
Developing monitoring in Automation Control System is a major industrial concern since those systems are more and more complex and involved in many safety critical application fields. The Automation system is being widely used in Power, Steel manufacturing, Oil and Gas, and Petrochemicals for monitoring, advance process control, regulatory and sequential control and various other functions. Automation...
The paper introduces the characteristics and functions of fieldbus technology through control of pH value in wet zinc metallurgy process. S7-300 PLC is master station, S7-200 PLC with communication module are secondary stations, and hardware configuration or software designing on profibus-DP are use of SETP7, monitoring software WinCC of master station monitor the system state and process data. So...
The paper introduces the characteristics and functions of fieldbus technology through control of pH value in wet zinc metallurgy process. S7-300 PLC is master station, S7-200 PLC with communication module are secondary stations, and hardware configuration or software designing on profibus-DP are use of SETP7, monitoring software WinCC of master station monitor the system state and process data. So...
Nowadays, industrial systems frequently require the control of some industrial process and monitoring of relevant data about the process, using a friendly visual environment. Normally, is used a PLC (programmable logical controller) to control the process and assure that the timing requirements (deadlines) are satisfied and a PC to monitor the data. However, the implementation of such solution presents...
The biomass energy is a kind of renewable resources. After using the prototyping machine to press bio-energy into block in ordinary temperature, it can be used as a fuel. This paper introduces a kind of two-way extrusion fuel prototyping machine, which can transform crop stalks into the biomass energy by normal forming technology. This system uses Siemens S7-200 PLC as the control core, and by programming...
Water purification process involves many complex physical and chemical phenomena, and thus it is difficult to realize optimum coagulant dosing control with traditional methods. In this paper, the feasibility of applying a fuzzy logic inference to determine optimum chemical dosage and to control the performance of coagulation process was discussed. Prior to field test, a fuzzy logic based control scheme,...
Aim at the drawback of original chrome-plated system and the demand of modified control system, while retaining the original manual control mode, in this paper, SIMENS configuration software WinCC and S7-300 series PLC as well as the original system's automatic equipment are proposed to compose the DCS system, having realized the automation of the entire electroplated production process, and at the...
Modern process control systems are used in industrial automations for flexibility, modularity and reliability, employing state of the art technology based on three concepts: distributed control system (DCS), programmable logic controller (PLC) and most importantly supervisory control and data acquisition (SCADA). This paper deals with design and implementation of a SCADA system for a central heating...
Due to limitation of the energy, human should save resources, even reuse the resources. In view of the serious pollution of water resources, as well as the increasing reduction of available water, sewage treatment becomes important issue to be studied nowadays. In this paper, considering industrial waste water processing procedures, utilize PLC, MCGS software as well as PROFIBUS bus in order to carry...
According to the characteristics of many control points, requesting high stability and reliability about a temperature control system of baking barns for a preserved fruit production line, a temperature control scheme based on protocol macro is presented. This paper introduces the realization of the control scheme from system structure and communication programming in detail. The scheme improves the...
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