Wireless field device, device management system, and device management method
AssigneeYokogawa Electric Corporation
InventorToshihiko Sakurai
Life of this patent
Estimating the term…
Abstract
A wireless field device may include a first communication unit that performs wireless communication via a wireless network, a storage unit that stores setting information including at least one of device information specifying the wireless field device, communication setting information for implementing wireless communication via the wireless network, and device setting information prescribing an operation of the wireless field device, and a change control unit that performs control not to enable a change of the setting information when prohibition information representing prohibition of the change of the setting information is received by the first communication unit.
Claims18
A wireless field device comprising:
- a first communication unit that performs wireless communication, via a wireless network;
- a second communication unit that performs communication with a provisioning device;
- a storage unit that stores setting information including at least one of device information specifying the wireless field device, communication setting information for implementing wireless communication via the wireless network, and device setting information prescribing an operation of the wireless field device;
- and
- a change control unit that performs control not to enable a change of the setting information when the first communication unit or the second communication unit receives change information of the setting, information after the first communication unit receives prohibition information representing prohibition of the change of the setting information, and that performs control to change the setting information based on the change information received by the first communication unit or the second communication unit when the first communication unit or the second communication unit receives the change information after the first communication unit receives cancellation information cancelling the prohibition of the change of the setting information.
A device management system comprising:
- a wireless field device that is connected to a wireless network;
- and
- a device management apparatus that manages the wireless field device by transmitting prohibition information and cancellation information to the wireless field device, the prohibition information representing prohibition of the change of the setting information, the cancellation information cancelling the prohibition of the change of the setting information and wherein
- the wireless field device comprising:
- a first communication unit that performs wireless communication via the wireless network;
- a second communication unit that performs communication with a provisioning device;
- a storage unit that stores the setting information including at least one of device information specifying the wireless field device, communication setting information for implementing wireless communication via the wireless network, and device setting information prescribing an operation of the wireless field device;
- and
- a change control unit that performs control not to enable a change of the setting information when the first communication unit or the second communication unit receives change information of the setting information after the first communication unit receives the prohibition information, and that performs control to change the setting information based on the change information received by the first communication unite or the second communication unit when the first communication unit or the second communication unite receives the change information after the first communication unit receives the cancellation information.
A device management method that manages wireless field device connected to a wireless network, the device management method comprising:
- making the wireless field device, which requests to participate in the wireless network, participate in the wireless network;
- transmitting prohibition information, which represents prohibition of change of setting information that is set to the wireless field device, to the wireless field device via the wireless network;
- and
- performing control of the wireless field device not to change the setting information based on prohibition information, which is transmitted via the wireless network.
Dependencies are inferred from the claim text.