Shenzhen Viena Science & Technology Development Co.,Ltd. (hereinafter called "Viena") is a provider of high-tech industrial automatic products and related solutions. We devoted ourself to research, development, production and sales of PLC & digital expansion module, human-machine interfaces, simulator & adapter , development board, wireless & remote module, wireless electronics etc. Also provides professional and thorough solutions to help our customers to improve their production efficiency. We build own brand of VIENA, sets up professional R&D team, also established production lines with proprietary intellectual property rights. Besides that, Viena also sells PLC of other brands, such as Siemens, Mitsubishi, Omron, Allen-Bradley, Delta etc. We assure high quality and strong stability, 100% original package, one year warranty and the most competitive prices. It is no exaggeration to say that Viena has become a powerful representative of the automation control industry in China.