| 摘要 |
PURPOSE:To make a control device have compound functions such as programming, monitoring and maintenance functions without spoiling the functions, by adding an operator's panel to the control device. CONSTITUTION:The controlled variable PV of the existing moment is detected by a level detector of a liquid level, and its signal is transmitted to a control device 69 through a signal line 1. A desired operation is performed in the control device 69, and its result is transmitted to the operation edge 8 through a signal line 2 and control is carried out. In the control device 69 is provided an operator's panel 70 consisting of a CRT display part 71, a planter part 72, a CMT part 73 and a keyboard part 74. In the keyboard part 74 of the panel 70 are provided a key for inputting alphabet and numerical value 77, a key for a maintenance function 80, and a key for adjusting the monitoring 75, in order that compound functions can be input from the panel 70. |
