6ES5 452-8MR11, Shenyang on China, 6ES5 on China by Shenyang Electric Limited. Shenyang on China Electric Co. (www.zsmsy.com) is specialized in the "high-low-voltage inverter, high and low voltage soft starter, magnetic switches, programmable logic controller (PLC)" of the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Wei Song. Shenyang, China Electric Co. on the main business in Europe, the United States, Japan and other countries manufacturers of industrial equipment, machinery products 6ES5 451-8MD11, to the world famous companies have long-term business contacts. 6ES5 440-8MA11 6ES5 440-8MA21 6ES5 440-8MA22 6ES5 441-8MA11 6ES5 441-8MA21 6ES5 451-8MA11 6ES5 451-8MD11 6ES5 451-8MR12 6ES5 452-8MR11 2. SIMATIC S7-300 PLC S7-300 is a modular mini PLC system 6ES5 451-8MR12, to meet the performance requirements of the application medium. Various individual systems can be constituted between the different requirements of a broad portfolio of Siemens S7 PLC family of modules. Compared with the S7-200 PLC, S7-300 PLC modular structure, with high-speed (0.6 ~ 0.1μs) instruction computing speed; with floating-point operations more effectively to achieve a more complex arithmetic operations; with a standard user interface user-friendly software tools for all module parameter assignment; convenient HMI services have been integrated in the S7-300 operating system, interactive programming requirements greatly reduced.