Field control system and field control method
AssigneeYokogawa Electric Corporation
InventorsHiroshi Miyata, Yukiyo Akisada, Masahito Endo, Hiroki Endo, Kensuke Hosoya
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Abstract
In a field control system in which a plurality of field equipments that are operated in a previously set schedule and constitute a control loop perform a packet communication via a network, there is provided a configurator for collecting measured result packets to which a time stamp of each field equipment is affixed respectively, grasping at least any one of communication times between respective field equipments based on the time stamp, and adjusting operation schedules of respective field equipments in response to the communication times.
Claims10
A field control system comprising:
- a plurality of field equipments that are operated in a previously set schedule and constitute a control loop, the field equipments performing a packet communication via a network;
- and
- a configurator which collects measured result packets to which a time stamp of each field equipment is affixed respectively, grasps at least any one of communication times between respective field equipments based on the time stamp, and adjusts operation schedules of respective field equipments in response to the communication times.
A field control method performed in a field control device in which a plurality of field equipments that are operated in a previously set schedule and constitute a control loop perform a packet communication via a network, said method comprising steps of:
- collecting measured result packets to which a time stamp of each field equipment is affixed respectively;
- grasping at least any one of communication times between respective field equipments based on the time stamp;
- and
- adjusting operation schedules of respective field equipments in response to the communication times.
Dependencies are inferred from the claim text.