6ES5 700-OLA11 6ES5 700-3LA12 6ES5 701-1LA12 6ES5 816-1AA11 6ES5 816-1BB21 6ES5 941-7UA13 6ES5 941-7UA12 6ES5 941-7UA13 6ES5 941-7UB11 five, maintenance processes and technical requirements (1) to measure voltage 1794 -IE8, use a digital voltmeter or accuracy of 1% of the multimeter measurement (2) power supply chassis, CPU motherboards are only removed when the main power is turned off; (3) to remove or insert the RAM module from the CPU CPU Before 1794-IB16, to disconnect the PC power supply, so as to ensure that data is not chaos; (4) Before removing the RAM module, check the battery module is working properly, remove the module PAM content if the battery fault lights will be lost; (5) Input / output board before removing it should first turn off the main power supply, but if production requires I / 0 boards can also be removed in the programmable controller is running, but QVZ (timeout) CPU board lights; ( 6) When the pluggable template, to be cautious, gently, and transported goods from generating static electricity; (7) the replacement of components shall live action; (8) Maintenance template installation must be planted in place 6ES5 430-4UA11 6ES5 430 -4UA12 6ES5 430-4UA13 6ES5 430-4UA13 6ES5 430-4UA14 6ES5 431-4UA12 6ES5 432-4UA12 6ES5 434-4UA11 6ES5 436-4UA12 6ES5 441-4UA13 4,1994 In April, S7 series was born, it has a more international higher performance rating, the installation space smaller, more well-WINDOWS user interface and other advantages, the model is: S7-200,300,400.5,1996 year 1794-IA8, in the field of process control, Siemens also proposed The concept PCS7 (Process Control System 7), and the advantages of WINCC (compatible with WINDOWS operator interface), PROFIBUS (industrial field bus), COROS (monitoring system), SINEC (Siemens industrial network) and integrated control technology transfer . 1794-OV16,1794-IA8, Shenyang on people (certified merchants) are provided by the Shenyang Electric Co., the people. 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.