& nbsp; & nbsp; The characteristic of the slitting machine is that each individual machine does not interfere with each other, and there is no connection relationship in hardware. Each individual machine only has a relationship with the main control machine, and software programming is relatively simple. Two energy-saving components and standardization. The advantage of this communication method is that the communication speed is relatively fast, but the disadvantage is that there are too many or too short on-site connections, so it is suitable for short distance transmission, such as the master-slave system used in robot control systems. Due to the increasing demand for energy conservation and emission reduction, as well as the rising cost of factory buildings, some old and technologically outdated longitudinal cutting and slitting lines will be phased out. More and more processing companies and factories will choose longitudinal cutting and slitting lines with the following characteristics. The wiring of the BIT-BUS bus (fieldbus) communication method is shown in Figure 3. In recent years, with the rapid development of electronic technology, especially computer technology, which advances every two to three years, it has also driven the development of various automated production lines in the world. For example, the production lines in the home appliance industry (such as televisions, refrigerators, fans, etc.) have all adopted automated production lines. In addition, the degree of automation in welding, assembly, painting and other production processes in the automotive manufacturing industry will be even higher, especially in some work sites that are harmful to human health. Automated intelligent devices have gradually been adopted and replaced by industrial robots. There are currently two types of recognition systems. Only in that way can it be easier to manufacture and maintain. Standardization of products is conducive to improving production efficiency and providing convenient after-sales service. Some parts from large factories are not universal and cannot be purchased in the market, making maintenance very difficult. In the future, universal parts must be used. If the communication line is relatively long, RS422 communication can also be used, which only requires four wires to connect. Both sending and receiving are transmitted in a complementary manner, and the communication is not grounded. To achieve high speed, tension is an important factor. Nowadays, the slitting machine can be increased to 800M/MIN, but the tension generating device needs to be matched.  & nbsp; & nbsp; The longitudinal cutting and slitting production line is an important processing machinery in the field of metal coil processing, now known as steel aluminium Copper and other processing plants are widely used, and the market prospects are quite promising. If it is a length measurement, the testing frequency of the identification system should be consistent with the synchronization frequency of the automatic line to ensure the accuracy of the length measurement. At the same time, the identification system should collect the results of length measurement, height measurement, and cross-section measurement for comprehensive analysis to ensure the accuracy of identifying the workpiece number. There are currently several ways of communication, including intelligent multi serial port communication.  & nbsp; & nbsp; Due to the roller tension, the surface roughness of the sheet can be reduced while obtaining tension So he is not limited by speed and will be the main direction for the development of longitudinal cutting and slitting machines in the future The roller tension station technology that can be used for multiple rewinding is a good technique to overcome this issue Due to its ability to reduce the surface roughness of the board and obtain tension So he is not limited by speed The roll type tension station for multiple rewinding is currently the latest technology, and no one has succeeded in it Nowadays, Taiwan machines are unable to produce them, only the roller tension slitting machines produced in Germany To stay ahead of the domestic market, great efforts must be made in the roller tension station to reach the world's advanced level Based on the current situation, the main development direction for the future will be the production line with no damage to the surface of the coil and high-speed longitudinal cutting This series of longitudinal cutting lines is used to roll metal coils into coils of the desired width through unwinding, longitudinal cutting, and winding. If you want high speed, tension is a very important factor. Nowadays, the slitting machine has advanced to 800M/MIN, but the tension generating device needs to be matched. Maximum diameter of uncoiling and unwinding: Ф1500MM。 Nowadays, the cost of factory rent is getting higher and higher. In some parts of the Pearl River Delta, the monthly rent for factory buildings can reach 10-16 yuan/m2, and there is a trend of increasing rent every year. Scope of application of slitting machine: Cold rolled steel coils, stainless steel, color coated coils, and tinplate slitting production lines.