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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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3G5A2-RPT01-E датащи(PDF) 16 Page - Omron Electronics LLC |
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3G5A2-RPT01-E датащи(HTML) 16 Page - Omron Electronics LLC |
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16 / 182 page  3 1-2-1 Input Devices PCs can receive inputs from either automated or manual devices. The PC could receive data from the user via a pushbutton switch, keyboard, or similar device. Automated inputs could come from a variety of devices: micro-switches, timers, encoders, photoelectric sensors, and so on. Some devices, like the limit switch shown below, turn ON or OFF when the equipment actually makes contact with them. Other devices, like the photoelectric sensor and proximity sensor shown below, use other means, such as light or inductance, in order to get information about the equipment being monitored. Photoelectric Sensor Limit Switch Proximity Sensor 1-2-2 Output Devices A PC can output to a myriad of devices for use in automated control. Almost any- thing that you can think of could be controlled by a PC. Some of the most com- mon devices are motors, solenoids, servomotors, stepping motors, valves, switches, indicator lights, buzzers, and alarms. Some of these output devices, such as the motors, solenoids, servomotors, stepping motors, and valves, affect the controlled system directly. Others, such as the indicator lights, buzzers, and alarms, provide outputs to notify personnel operating or monitoring the system. Solenoid Servomotor Stepping Motor The Role of the PC Section 1-2 |
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