Control system and communication method
AssigneeOMRON Corporation
InventorMitsuhiro Yoneda
Life of this patent
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Abstract
A first control device connected to a network in which data is updated at every predetermined cycle transmits, at every predetermined cycle, first data used for controlling a manufacturing device or a production facility, using a first communication band among communication bands possessed by the network. A second control device connected to the network and time-synchronized with the first control device transmits second data used for setting and managing the manufacturing device or the production facility, using a second communication band other than the first communication band among the communication bands possessed by the network.
Claims7
A control system, which controls a manufacturing device or a production facility, comprising:
- a first control device connected to a network in which data is updated at every predetermined cycle, and
- a second control device connected to the network and time-synchronized with the first control device;
- wherein the first control device transmits to the manufacturing device or the production facility, at every predetermined cycle, first data used for controlling the manufacturing device or the production facility, using a first communication band among communication bands possessed by the network;
- and
- the second control device transmits to the manufacturing device or the production facility second data used for setting and managing the manufacturing device or the production facility, using a second communication band other than the first communication band among the communication bands possessed by the network, wherein
- the first control device cyclically transmits to the manufacturing device or the production facility the first data using the first communication band, and transmits to the manufacturing device or the production facility the second data using a part of the second communication band, and
- the second control device transmits to the manufacturing device or the production facility the second data using a communication band other than the part of the second communication band,
- the first communication band and the second communication band refer to a time width in a time division manner, a frequency in a frequency division manner, or a code sequence in a code division manner.
A communication method in a control system which controls a manufacturing device or a production facility,
- wherein the control system comprises:
- a first control device connected to a network in which data is updated at every predetermined cycle, and
- a second control device connected to the network and time-synchronized with the first control device;
- the communication method comprises:
- a step in which the first control device transmits to the manufacturing device or the production facility, at every predetermined cycle, first data used for controlling the manufacturing device or the production facility, using a first communication band among communication bands possessed by the network;
- a step in which the second control device transmits to the manufacturing device or the production facility second data used for setting and managing the manufacturing device or the production facility, using a second communication band other than the first communication band among the communication bands possessed by the network;
- and
- a step in which the second control device transmits third data using a communication band that is not set in either the first communication band or the second communication band among the communication bands possessed by the network,
- wherein the first communication band and the second communication band refer to a time width in a time division manner, a frequency in a frequency division manner, or a code sequence in a code division manner.
Dependencies are inferred from the claim text.