Abstract : This paper introduces the hot-dip galvanizing process and the working principle of MCGS configuration software. A control demonstration system for the hot-dip galvanizing process was designed using MCGS configuration software, and the functions and processes of the demonstration system during actual operation are described. Keywords : Hot-dip galvanizing; Demonstration system; MCGS configuration software [align=center]Application of MCGS in galvanization production line's demonstration system designing He Ping, Lou Yi (College of electrical engineering, Xinjiang University, Wulumuqi, China, 830008)[/align] Abstract : This paper introduces the technical process of hot-dip galvanization and the working principle of MCGS. Aiming at the technical process of hot-dip galvanizing, it uses MCGS to design this process control demonstration system. Finally, when the demonstration system is running in practice, the functions and processes are described. Keywords: Hot Galvanizing; Demonstration system; MCGS 1 Overview of Hot-dip Galvanizing Hot-dip galvanizing is the most widely used metal corrosion protection method, which evolved from the ancient hot-dip tin-dip method. Its production process is divided into four stages: inlet stage, annealing stage, treatment stage, and outlet stage. The inlet section includes an uncoiler, straightener, double shear, and welding machine. The annealing section includes an inlet looper tower for storing strip steel between the inlet and furnace sections, a cleaning device, a vertical annealing furnace with a direct-heating preheating section, and galvanizing equipment. The processing section mainly includes a zinc alloying furnace and equipment for cooling the strip steel after galvanizing, a tension leveling section with a four-roll leveler, and passivation equipment. In addition, there are S-rolls for controlling strip steel tension and transport, and an intermediate looper tower for storing strip steel. Between the outlet and processing sections is an outlet looper tower for storing strip steel. The outlet section is equipped with an inspection table, oiling machine, flying shear, and a coiler for rolling sheet steel into coils. 2. Introduction to MCGS Configuration Software MCGS (Monitor and Control Generated System) is a Windows-based configuration software system used for quickly constructing and generating host computer monitoring systems. It provides users with a complete solution and development platform for solving practical engineering problems, capable of performing functions such as field data acquisition, real-time and historical data processing, alarm and security mechanisms, process control, animation display, trend curves and report output, and enterprise monitoring networks. It supports numerous domestic and international data and output devices and has been successfully applied in various engineering fields such as petroleum, power, and chemical industries. The MCGS configuration software consists of two systems: the "MCGS Configuration Environment" and the "MCGS Runtime Environment," as shown in Figure 1. The MCGS Configuration Environment is the working environment for generating user application systems. Users complete configuration tasks such as animation design, device connection, control flow writing, and engineering report generation within the MCGS Configuration Environment. The MCGS Runtime Environment is the runtime environment for user application systems, where control of the project is performed. The two parts are independent yet closely related. [align=center]Figure 1 System Structure Diagram[/align] 3 MCGS Simulation Design of Hot-Dip Galvanizing Production Line Process The typical process flow for continuous hot-dip galvanizing is: hot-rolled pickled incoming material → welding → cleaning → inlet looper → annealing → galvanizing → leveling → tension straightening → passivation → outlet looper → coiling. This series of processes is very complex. This design mainly uses MCGS configuration software to create a control screen to simulate the actual process, giving everyone a more intuitive understanding of hot-dip galvanizing production. The galvanizing process was simplified in the design, focusing on the control of galvanizing temperature, uncoiler, double shear, welding machine, outlet shear, coiler, and indicator lights. This control system implements an MCGS simulation demonstration control of the galvanizing production line. The system's process requirements are as follows: after pressing the start button, first determine if the zinc pot temperature has reached 4800°C. If the zinc pot temperature reaches 4800°C, then uncoiler 1 = 1. When uncoiler 1 has no steel coil, shearer 1 = 1 and uncoiler 2 = 1. When uncoiler 2 has no steel coil, shearer 2 = 1 and uncoiler 1 = 1. Then, welding machine = 1, light guides D00-D50 are sequentially equal to 1, and flying shear = 1. When flying shear = 1, determine if coiler 1 is full. If not, uncoiler 1 = 1; if full, uncoiler 2 = 1. After uncoiler 2 = 1, the system starts to determine if coiler 2 is full. If not, uncoiler 2 = 1; if full, return to shearer and re-determine uncoiler 1. This cycle continues until the stop button is pressed, at which point the entire control stops. The control flow is shown in Figure 2. [align=center] Figure 2 Flowchart of the galvanizing production line demonstration system[/align] 4 System Configuration The system configuration steps are as follows: (1) Open the MCGS configuration environment and create an engineering project. (2) Create the engineering screen. The engineering screen is created in the user window. Select the hardware equipment used in the system from the MCGS equipment toolbox and place it in a suitable position so that the material flow in the system forms a closed loop to realize the interactive interface between the operator and the user. Figure 3 shows the configuration screen of the galvanizing production line demonstration control system. [align=center] Figure 3 Flowchart of the galvanizing production line demonstration system[/align] (3) Define data objects. The real-time database is the data exchange and data processing center of the MCGS project. Data objects are the basic units that constitute the real-time database. The process of creating a real-time database is also the process of defining data objects. The content of defining data objects mainly includes: specifying the name, type, initial value and numerical range of data variables, and determining the parameters related to the storage of data variables, such as the storage period, storage time range and retention period. (4) Animation connection. The graphic screen constructed from graphic objects is static. It is necessary to design animations for these graphic objects to realistically describe the state changes of external objects and achieve the purpose of real-time process monitoring. The main method of MCGS to realize graphic animation design is to establish a correlation connection between the graphic objects in the user window and the data objects in the real-time database and set the corresponding animation attributes. During the system operation, the appearance and state characteristics of the graphic objects are driven by the real-time acquisition values ​​of the data objects, thereby realizing the animation effect of the graphics. (5) Control strategy. The strategies of this galvanizing control demonstration system are divided into: start strategy, recovery strategy, light-running strategy, shearing machine timed conversion strategy, uncoiling machine conversion strategy, winding machine conversion strategy, digital display strategy, stop strategy, etc. (6) Run and debug. After the system configuration is completed, the configuration is checked first, and the running environment is entered after confirming that there are no errors. 5 Conclusion This article, combined with the MCGS control system configuration software, discusses in detail the principle of industrial control configuration software and its specific implementation process. This paper adopts a novel control strategy method from MCGS—the graphical configuration method. This method has a "what you see is what you get" characteristic, overcoming the shortcomings of traditional configuration software where programming language configuration is not intuitive. Configuration software has wide applications in most industries, and its use is currently widespread in China's industries. This paper introduces the hot-dip galvanizing production process and designs and simulates the US Steel process using MCGS configuration software, essentially achieving automatic control using MCGS. This configuration control software features high precision, strong real-time performance, and a simple and convenient monitoring interface, reducing the probability of failure, increasing system control flexibility, and further improving production efficiency and sophistication, thus possessing high practical value. References: [1] Li Jiuling. Continuous hot-dip galvanizing of strip steel [M]. Beijing: Metallurgical Industry Press, 1987. [2] Beijing Kunlun Tongtai Automation Software Technology Co., Ltd. MCGS Industrial Control Configuration Software User Guide [M]. Beijing, 1993. [3] Ma Guohua. Monitoring configuration software and its application [M]. Beijing: Tsinghua University Press, 2001. About the authors: He Ping (1957-) female, experimentalist, engaged in laboratory teaching and research, [email protected], 13909918506; Lou Yi (1958-) male, senior experimentalist, engaged in laboratory teaching and research, [email protected], 13579215632. Mailing address: School of Electrical Engineering, Xinjiang University (North Campus), He Ping, 830008