Programmable Controller (PLC) is a general industrial automation control equipment with computer technology as its core.
It has powerful and complete functions and relatively high reliability. It can realize rapid networking, and is rapidly popularized with its powerful advantages in the actual application process. The course “Principle and Application of Programmable Controller” in technical schools is an important part of the comprehensive curriculum. Improving the teaching quality has a positive impact on the training of programmable control talents, so it has received great attention. The course Principle and Application of Programmable Controller (PLC) is a practical course which integrates theoretical knowledge explanation and skill training. It has strong comprehensive and practical characteristics and is highly valued in the teaching practice of technical schools.
However, due to the weak foundation of students in technical schools and the backward rigidity of traditional courses in technical schools, the overall teaching quality is low, which is not conducive to students’mastery of the application skills of programmable controllers. Therefore, in order to effectively improve the teaching effect, technical schools should also make appropriate adjustments in the process of organizing the teaching practice in accordance with the teaching needs, so as to provide corresponding guarantee for the improvement of teaching quality. At present, the textbooks of Principles and Applications of Programmable Controller used in the teaching practice of technical schools are generally classified according to the basic working principles, basic operations and basic applications. Therefore, in the process of organizing teaching practice according to the textbooks, teachers need to understand and master the phases in favor of students.
Only by ensuring the reasonable arrangement of teaching content can the teaching effect be highlighted to the maximum extent from the perspective of knowledge. In the specific teaching practice, teachers can use modular teaching to create learning situations, and combine the production process and case-driven to ensure that students can learn theoretical knowledge at the same time grasp the corresponding practical operation ability, laying the foundation for students to further study the relevant knowledge. For example, in the course of explaining Mitsubishi FX1N series programmable controllers, teachers can choose to divide the teaching content into three basic modules on the basis of comprehensive analysis of the teaching content, which are basic operation instruction and practical application, functional instruction and practical application, engineering practice, and different modules are packaged. Each module can be divided into production purpose of application case, control requirement of application case, basic quality, main line of control with programmable controller, debugging Yuxing program, ladder diagram programming and so on, so as to realize the reform and innovation of traditional teaching mode and ensure that students do not want to use it. It can not only complete the study of theoretical knowledge, but also touch the content of future career development, providing corresponding guarantee for students’smooth employment after graduation. In the teaching practice of programmable logic controller (PLC), teachers in technical schools can effectively enhance students’learning enthusiasm and initiative and effectively improve the teaching effect by organizing and carrying out teaching activities with comprehensive application of vocational activity-oriented teaching method. In terms of practical operation, teachers in technical schools should comprehensively apply various teaching methods, such as guided text teaching method and role-changing teaching method, to highlight students’learning subject status in teaching activities, so that students can complete the learning of relevant knowledge with the help of teachers’ guidance and help in specific teaching situations, and achieve good results. Learning effectiveness.
In this way, with the guidance of vocational teaching activities, students gradually change from traditional apprenticeship to “Party B” in future career life, and play an important role in the process of completing relevant learning tasks. Teachers are transformed into teaching assistants who collect learning information, guide students to formulate relevant learning programs, and help students organize and plan. Students’learning subjectivity can be fully developed, and learning effects can be further highlighted.
It can be seen that the introduction of more scientific teaching methods in the course of “Principles and Applications of Programmable Controller” in technical schools can effectively improve the teaching quality of “Principles and Applications of Programmable Controller” in technical schools, and students’comprehensive practical application skills can also be well trained. One of the most important characteristics of programmable control technology is its strong logic and abstraction. Therefore, the traditional blackboard teaching can not meet the requirements of students’in-depth study of programmable control technology. The students’ overall interest in learning will inevitably be limited, and the learning effect is not ideal, so the programmable control for students can not meet the requirements of the traditional blackboard teaching. The mastery of manufacturing technology has a negative impact. Therefore, under the social background that multimedia technology has been well developed and widely used in the field of education and teaching, multimedia courseware should be actively introduced into the teaching of Principles and Applications of Programmable Controller in technical schools, so as to enhance the image and vividness of teaching and to master programmable control technology for students. Lay a foundation to promote the overall teaching effect has been significantly improved.
For example, in the process of explaining the “Roundtrip Operation Control Procedure of the Transport Vehicle” by teachers, students are easily confused with the whole control process, and the learning effect is not ideal.
At this time, teachers can try to introduce multimedia teaching technology, with the help of making corresponding multimedia teaching courseware, to show students the whole control link of the cart in the form of pictures and animations. That is, when the teacher clicks the start button, the cart moves forward for the first time, and when the limit switch SQ1 is touched, the cart moves backward. When the car touches the limit switch SQ2 in the process of backing up, the car will stop for 5 seconds, then move forward for the second time, until the car touches the limit switch SQ3 in the course of running, the car will run backward for the second time… Until the car finally stops.
In this way, students can watch vivid pictures and animations in the learning process, and students can form a more intuitive understanding of the whole control process of the transport vehicle, and leave a deep impression, so that students can have a profound understanding of the whole process. In the process of teaching reform, comprehensive exploration of diversified teaching methods can effectively enhance the interest of teaching, promote the attraction of teaching activities to students, and enable students to actively participate in learning activities under teachers’instructions, and achieve good learning results. Generally speaking, a comprehensive analysis of the teaching project module of the course “Principles and Applications of Programmable Controller” can find that each project teaching module has a relatively complete working process, and in the process of students’learning and exploration, they often experience information collection-formulation of teaching methods-organizational decision-making-scheme implementation-side.
Case Check-Teaching Assessment consists of several stages. In the planning and decision-making process, the teacher can divide the students into several groups, and let the group members discuss and analyze within the organization and determine the corresponding learning plan, and use brainstorming method to trigger students to think deeply about the relevant issues.
In the process of teaching inspection and evaluation, teachers should try to use micro-observation and reflection methods to let students analyze and summarize the knowledge they have learned, and put forward corresponding suggestions and suggestions for improving the learning of controllable programming technology, so as to enhance the richness of the teaching content, so as to provide students with in-depth study and mastery of controllable programming. The technology in this field provides corresponding guarantee. In the course of Principles and Applications of Programmable Controller, teachers should actively organize students to participate in practice and training on the premise of ensuring the quality of basic teaching, so as to enhance students’comprehensive practical ability and provide students with a later career. Life lays the foundation. In the specific operation practice, teachers can use the existing resources of the school to simulate the work site of the application of controllable programming technology, so that students can receive professional and systematic teaching training, thus enabling students to master the relevant technical operation knowledge skillfully, and enhance students’knowledge application ability. At the same time, qualified schools should also organize students to participate in internships in enterprises, understand the specific workflow and work requirements, and then conduct targeted training, so as to provide corresponding guarantee for students to further enhance the learning effect of the course “Principles and Applications of Programmable Controllers”.
Only in this way, with the help of practice and practice teaching, thermostatic element students’comprehensive practical ability can be well trained, which is conducive to students’ proficient application of controllable programming technology after graduation and good career development. In summary, the teaching of Principle and Application of Programmable Controller has strong logic and practicality, which puts forward higher requirements for the teaching of the course. Therefore, teachers in technical schools should actively explore diversified teaching methods in the course of organizing the teaching of Principles and Applications of Programmable Controller, change the rigid and backward state of traditional teaching, train students’practical operation skills, and gradually train students to become high-quality talents.