| 摘要 |
<p>PURPOSE:To decrease a cost and to decrease the load of a process computer by providing a sensor input control means to input the signal of many sensors, inspect sensor signals, convert to an engineering unit system and transmit the inspected result and the converted value. CONSTITUTION:A digital sensor input device 10 inputs the detecting signal of digital sensors DS1 to DSi, an analog sensor input device 11 inputs the detecting signal of analog sensors AS1 to ASj and a sensor input control device 12 inspects the input signal of sensor input devices 10 and 11, converts it to the engineering unit system value and transmits the result to a process computer 2. Thus, the load of the process computer applied to the input processing of the sensor signal is decreased, the sensor input device is arranged near the plant, and thus, a signal cable is shortened and the cost is decreased.</p> |
