6ES5 376-1AA11 6ES5 376-0AA11 6ES5 376-0AA21 6ES5 376-1AA31 6ES5 377-0AA11 6ES5 377-0AA21 6ES5 377-0AA32 6ES5 377-0AA31 6ES5 377-0AB31 6ES5 377-0BA31 6ES5 420-4UA13 6ES5 420-4UA14 Siemens SIMATIC series PLC, born in 1958, has experienced C3, S3, S5, S7 series 6ES5, has become widely used in the programmable controller. 6 generations a Siemens products Siemens (SIMATIC) PLC was first put on the market in 1975 SIMATIC S3, it is actually a simple user interface with binary controller. 2,1979 years, S3 system was replaced by SIMATIC S5, the extensive use of a microprocessor system. 3,20 early 1980s, S5 system further upgrade --U series PLC 6ES5310-3AB11, more commonly used models: S5-90U, 95U, 100U, 115U, 135U, 155U. 6ES5 498-1AA51 6ES5 498-1AA31 6ES5 511-5AA14 6ES5 525-3MA12 6ES5 525-3UA11 6ES5 525-3UA21 6ES5 535-3MA12 6ES5 535-3UA12 6ES5 544-3UA11 6ES5 756-0AA11 control scale can be divided into mainframe, midrange and minicomputers. Siemens PLCS7-300 series minicomputer: General minicomputer control points within 256 points of 6ES5304-3UB11, adapted to control or small stand-alone control system. Siemens minicomputer has S7-200: processing speed of 0.8 ~ 1.2ms; memory 2k; Digital 248 points; 35 analog way. Midrange: Control Point midrange generally not more than 2048 points that can be used to directly control the devices, but also on a plurality of lower-level programmable controller for monitoring, it is suitable to control medium or large control systems. 6ES5301-3AB13, Shenyang on people (certified), 6ES5 provided by the Shenyang Electric Co., the people. Shenyang on China Electric Co. (www.zsmsy.com) Liaoning Shenyang, the other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Shenyang people in leadership with the staff warmly welcome all inquiries negotiations to create Shenyang on a better future for the people.