Can the human-machine interface of the industrial computer only be connected to the PLC? No. Human-machine interface products are produced to solve the human-computer interaction problem of plc, but with the development of computer technology and digital circuit technology, many industrial control equipment has O communication capability, so as long as the industrial control equipment with serial communication capability , Such as frequency converters, DC governors, temperature control instruments, data acquisition modules, etc. can be connected to human-machine interface products to achieve human-computer interaction functions.
The machine interface design needs to consider the following five issues:
1. The overall layout design of the interface, that is, how to make the layout of the interface more reasonable. For example, we should put buttons with similar functions together and distinguish them in style from buttons with other functions, so that it will be more convenient for users to use.
2. Operation process design, that is, through the design of the work process, the workload of the user is reduced and the work efficiency is improved. For example: How can we allow the user the least number of steps to complete-item operations. With other software, you need to click the mouse 50 times and move 20,000 pixels on the screen to complete, but with your software, you only need to click the mouse 25 times and move 5,000 pixels on the screen to complete. Then users will be four times more efficient when using your software than using other software, so users will naturally choose your software.
3. The working interface is designed for comfort, even if the user works more comfortably. For example: what kind of main color of the interface do we use, so that users can work for the longest time without feeling tired when they are in a good mood? Red: warm, dazzling, easy to produce anxiety. Cesium: Calm, Tech, Comfort. Bright color: clean and bright, but it is more irritating to the eyes, and it is easy to cause fatigue when working for a long time. Dark color: quiet, atmospheric, less irritating to the eyes. The light gray system main color of Microsoft Corporation and the successful application of ICON coordination have prompted all the current international software products to form a standard, which is also one of the important factors of Microsoft's success.
4. Human-machine interface design is not a simple shell packaging, the success of a software is its perfect function realization, serious debugging is inseparable. However, the overall planning before any product development will also be one of the key factors in the design of the human-machine interface. In the process of operation, the focus is not only on the beautiful and practical performance, but also on the underlying technical criteria of the planned product to optimize the performance. out the soul of a software product.
5. We need formal understanding and implementation of investigation. MAC's shell color innovation has driven the personalization of all current machines, but ACER has also produced dark green chassis in the past, but it has failed. There are two reasons, one is that the design is not enough, and the other is that the timing is not good, because the taste of the public was not enough at that time. We need a formal analysis and planning of the needs of our partners, so that the human-machine interface design can be implemented correctly. From the above, it can be seen that human-machine interface design is a very comprehensive subject, which not only relies on computer technology, but also relies on psychology, cognitive science, linguistics, communication technology, drama, music and art. method. Therefore, in order to achieve a user-satisfied interface, it is necessary to study the subject of human-machine interface design and understand its essence.
