Data processing: generic control systems or specific application – Generic control system – apparatus or process – Having protection or reliability feature
Reexamination Certificate
2007-07-17
2007-07-17
Knight, Anthony (Department: 2121)
Data processing: generic control systems or specific application
Generic control system, apparatus or process
Having protection or reliability feature
C370S241000, C370S362000, C370S225000, C370S465000, C340S870130, C324S551000
Reexamination Certificate
active
10480122
ABSTRACT:
A field apparatus for controlling a controlled element includes a diagnosis unit for diagnosing abnormality of the field apparatus and/or the controlled element and a bidirectional digital communication device to send a digital signal which shows a diagnosis result to outside and to receive a digital signal from outside in order to execute a control of the controlled element. Other predetermined functions are effected based on a command signal in the form of an analog signal received from outside by a analog communications device of the apparatus. Electric power for operation is supplied through a switching means that can switch either a electric power that is supplied by the analog communications device or a electric power that is supplied by the bidirectional digital communication device.
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Akano Shinichi
Kumeda Yasuo
Kuroda Masato
Nagasaka Fumio
Chang Sunray
Jordan and Hamburg LLP
Knight Anthony
Yamatake Corporation
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