| 摘要 |
PURPOSE: A plant system, a plant monitoring device, and a method for selecting plant data are provided to communicate data in case that the data selected from a plant is absent or inhibited, or the plant can not be operated/monitored/repaired, and to mask data to protect. CONSTITUTION: The plant(51) is a monitoring target. A monitoring unit(50) receives plant information by connecting to the plant through a communication line(21). A maintenance information provider(52) receives the plant information from the plant or the monitoring unit through the communication line, and finds out maintenance information based on the plant information. A monitoring unit has a data selector(1) transmitting the partially restricted plan data to the maintenance information provider or transmitting a restriction order signal for restricting a unit of the plant information. |
