| 摘要 |
<p>PROBLEM TO BE SOLVED: To preform the monitor or/and maintenance of a controller without providing any centralized monitor even in a small system. SOLUTION: When an information request to a controller 3 to be monitored is selected from the menu picture of a monitor terminal part 11 of a controller 1, the monitor terminal part 11 transmits the information request to the controller 3. At the time of receiving the information request, the controller 3 performs processing based on the information request, and returns the performed result to the controller 1. At the time of receiving the performed result, the monitor terminal part 11 of the controller 1 displays it on the screen. When an information request to a controller 12 in the controller 1 itself to be monitored is selected from the menu picture of the monitor terminal part 11, the monitor terminal part 11 transmits the information request to the controller 12, and at the time of receiving the information request, the controller 12 performs processing based on the information request, and returns the second performed result of the controller 12 to the monitor terminal 11, and at the time of receiving the result, the monitor terminal part 11 displays it on the screen.</p> |
