Control apparatus, control method, storage medium, control system, lithography apparatus, and method of manufacturing article
AssigneeCanon Kabushiki Kaisha
InventorYasuhiro Watanabe
Life of this patent
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Abstract
A control apparatus for controlling a plurality of nodes connected to a network is provided. The apparatus includes a communication unit configured to transmit/receive, via the network in a predetermined period, a data frame including a plurality of data areas respectively assigned to the nodes; and a setting unit configured to, in a case where a first data area, of the plurality of data areas, which is scheduled as a data area of a first node is unused in a first period, assign the first data area as a data area of a second node different from the first node in the first period. The communication unit is configured to cause the second node to read out, in the first period, response data written in the first data area.
Claims13
A control apparatus for controlling a plurality of nodes connected to a network, the apparatus comprising:
- a communication unit configured to transmit and receive, via the network in a predetermined period, a data frame including a plurality of data areas respectively assigned to the nodes;
- and
- a setting unit configured to define assignments of the plurality of data areas,
- wherein the plurality of nodes include a first node and a second node, the second node being a control node configured to control a first unit, and
- wherein, in a case where a first data area of the plurality of data areas is unused in a first period and is scheduled, in a second period before or after the first period, as a data area in which command data to the first node and response data from the first node are written, the setting unit is configured to assign the first data area, in the first period, as a state data area in which state data indicating a state of the first unit is written by the second node.
A control method of controlling a plurality of nodes connected to a network, the method comprising transmitting and receiving, via the network in a predetermined period, a data frame including a plurality of data areas respectively assigned to the nodes, and
- defining assignments of the plurality of data areas,
- wherein the plurality of nodes include a first node and a second node, the second node being a control node configured to control a first unit, and
- wherein, in a case where a first data area of the plurality of data areas is unused in a first period and is scheduled, in a second period before or after the first period, as a data area in which command data to the first node and response data from the first node are written, the first data area is assigned, in the first period, as a state data area in which state data indicating a state of the first unit is written by the second node.
A non-transitory computer-readable storage medium storing a program for causing a computer to execute transmitting and receiving, via the network in a predetermined period, a data frame including a plurality of data areas respectively assigned to the nodes, and
- defining assignments of the plurality of data areas,
- wherein the plurality of nodes include a first node and a second node, the second node being a control node configured to control a first unit, and
- wherein, in a case where a first data area of the plurality of data areas is unused in a first period and is scheduled, in a second period before or after the first period, as a data area in which command data to the first node and response data from the first node are written, the first data area is assigned, in the first period, as a state data area in which state data indicating a state of the first unit is written by the second node.
A control system including a plurality of nodes connected to a network and a control apparatus configured to control the plurality of nodes,
- wherein the control apparatus includes a communication unit configured to transmit and receive, via the network in a predetermined period, a data frame including a plurality of data areas respectively assigned to the nodes, and
- a setting unit configured to define assignments of the plurality of data areas, wherein the plurality of nodes include a first node and a second node, the second node being a control node configured to control a first unit, and
- wherein, in a case where a first data area of the plurality of data areas is unused in a first period and is scheduled, in a second period before or after the first period, as a data area in which command data to the first node and response data from the first node are written, the setting unit is configured to assign the first data area, in the first period, as a state data area in which state data indicating a state of the first unit is written by the second node.
Dependencies are inferred from the claim text.