| 摘要 |
PROBLEM TO BE SOLVED: To resume a continuous operation from an appropriate step in accordance with the state of equipment to be controlled during restart after abnormality processing in a monitor device of a programmable controller which executes a program described in SFC language.SOLUTION: A monitor device 2 of a programmable controller 10 includes: reading means 202 for reading operation state information of a facility 12 from the programmable controller 10 during each operation; relationship information storage means 203 for storing relationship information indicating a relationship between a step to be executed first during restart after each operation among a plurality of steps and the operation state information; selection means 204 for selecting the step to be executed first during restart of the facility 12 by referring to the operation state information on the basis of the relationship; and command transmission means 205 for transmitting a command to change an under-execution flag of the programmable controller 10 indicating the step to be executed first during restart of the facility 12 on the basis of the selection result of the selection means 204.SELECTED DRAWING: Figure 2 |
