| 摘要 |
<p>PURPOSE:To perform a backup process if one of monitor terminal devices in a decentralized monitor system stops operation without interrupting the original monitoring operation. CONSTITUTION:A master system host processor 102, a slave system host processor 103, monitor terminal devices 104-106, and a measuring terminal device 107 are connected to a time-division transmission line 101 through a transmission line connector 108. Then the host processors 102 and 103 are provided with calculating means which calculate the weight of process information, detecting means which detect the host processors 102 and 103 stopping operation and means which weight and send out plant information to be displayed on one of the monitor terminals 104-106 which stops operation to other monitor terminal devices if the monitor terminal device stops operation. Further, the monitor terminal devices 104-106 are provided with means which select important information among pieces of sent processor information according to the weight and makes its backup display.</p> |
