"三菱变频器与西门子PLC通信及应用研究"

The communication between Mitsubishi inverter and Siemens PLC is achieved through communication protocols to realize the forward and reverse rotation of the motor. Instructions are sent from a personal computer that the inverter can recognize, the inverter accepts the instructions, and then sends out instructions that the PLC can recognize. The PLC then accepts the instructions and ultimately controls the forward and reverse rotation of the motor. Mitsubishi inverter can achieve motor forward and reverse rotation as well as frequency changes through panel operation, potentiometer operation, and three-stage fixed frequency operation. This paper introduces the application, functions of Mitsubishi inverter, communication with Siemens PLC, and precautions when using it. Keywords: Mitsubishi inverter, Siemens PLC, communication The communication between Mitsubishi inverter and Siemens PLC plays a crucial role in controlling the motor's rotation and frequency changes. By utilizing communication protocols, instructions are sent and received between the personal computer, inverter, and PLC to ensure smooth operation of the motor. Mitsubishi inverter offers various methods for controlling motor rotation, including panel operation, potentiometer operation, and fixed frequency operation. Additionally, this paper highlights the importance of understanding the communication process and precautions when using Mitsubishi inverter with Siemens PLC. Overall, the integration of Mitsubishi inverter and Siemens PLC communication allows for efficient and precise control of motor operations. Understanding the communication protocols and utilizing the various control methods provided by Mitsubishi inverter are essential for successful application in automation systems. By following the recommended precautions and guidelines, users can maximize the performance and reliability of the Mitsubishi inverter and Siemens PLC system.