MONITORING CONTROL SYSTEM, MONITORING CONTROL DEVICE, AND CONTROLLER

摘要

According to one embodiment, a monitoring control system includes a controller and a monitoring control device. The monitoring control device includes: a first common memory to store therein common data cyclically transmitted/received by cyclic transmission; a first internal memory to store therein data other than the common data; and a search processor that searches control data to control the controller by transmitting tag information associated with the control data to the controller. The controller includes: a second common memory to store therein the common data; a second internal memory to store therein data other than the common data; and a storage processor that stores the control data read from the second internal memory in the second common memory as the common data when the control data corresponding to the tag information received from the monitoring control device is not stored in the second common memory.

主权项

1. A monitoring control system comprising:
a controller that controls external equipment; and a monitoring control device that monitors and controls the controller through a network, wherein each of the controller and the monitoring control device is configured to cyclically perform cyclic transmission in the network, the monitoring control device comprises:
a first common memory to store therein common data cyclically transmitted/received by the cyclic transmission;a first internal memory to store therein data other than the common data; anda search processor that searches control data to control the controller by transmitting tag information associated with the control data to the controller, and the controller comprises:
a second common memory to store therein the common data;a second internal memory to store therein data other than the common data; anda storage processor that stores the control data read from the second internal memory in the second common memory as the common data when the control data corresponding to the tag information received from the monitoring control device is not stored in the second common memory.