| 摘要 |
<p>PURPOSE:To attain the supervision of a process plant in on-line operation even during the control response confirming test by providing a data linkage bus and connecting a communication controller, a transmission/reception section of a computer system and a process data generator. CONSTITUTION:The communication controller 5 fetches only a control data to a process plant from a data linkage bus 6 and sends the process data of the process plant received from a transmitter (master station) 20 to the bus 6. The transmission/reception section 7 sends the control data received by the control output section 12 to the bus 6, fetches the process data sent by the communication controller 5 or the simulated data sent by the process data generator 13 and sends it to a rationality discrimination section 8. When the said data is sent from the process data generator 13, the central processing unit 2 applies the entirely the same processing as that sent from the transmission system 19. Thus, the operation confirmation test is conducted without giving any effect on the plant even when the computer system is operated simply and kept connected to the transmission system 19.9.</p> |
