RS-485 RS-485 is the recommended standard developed by IEC, which is a standard physical layer protocol communication interface. Use twisted-pair, differential signals transmitted electronic scale, with anti-interference ability ktf electronic scale, communication distance, low cost, can achieve a master multi-communication mode, etc. from Germany on a twisted pair. The maximum communication distance of 1200 meters, is widely used in industry. But because it only implements the physical layer of the electronic device 25, can not solve the communication medium shared problem that requires the application through the "polling" approach to multi-machine communications, and on a bus can only have one host electronic device ktc, up There are 110 sets of equipment. Pull Sensor Selection Guide: Shenzhen Technology Co., Miran rope displacement sensor Model Description: Model Description: MPS - S - 500mm - V1 Model small-scale output range type R: resistance output V1: 0-5VV2: 0- 10VA: 4-20MAP: pulse output types give out: MPS-S-500mm-V1 represents rope displacement sensors measure the length of 500mm, the output voltage is 0-5V.S small range: 200-1000mmM in the range: 1200mm-4000mmL Large Range: 4500-10000mm ktc electronic ruler _ Miran Technology (certified) _ electronic device provided by the Shenzhen Municipal Science and Technology Co., Miran. Miran Technology Co., Ltd. of Shenzhen City (www.miran-tech.com) is an industry leader in Shenzhen, Guangdong, industrial automation control systems and equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Miran technology leadership with the staff warmly welcome all inquiries negotiations to create a better future Miran technology.