Energy Saving Control for a Field Device
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Accused Products
Abstract
A control for a field device comprises a monitoring unit that is separate from a control unit for controlling the field device which monitoring unit, when the control unit is in a sleep mode, waits for an activation signal in order to switch the control unit to the operating mode.
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Citations
28 Claims
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1-14. -14. (canceled)
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15. A control device for a field device, comprising:
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a control unit controlling the field device, and a separate monitoring unit, wherein the control unit selectively switches to one of an operating mode and a sleep mode, wherein the control unit, before the sleep mode is assumed, transmits a deactivation signal to the monitoring unit, and wherein the monitoring unit, after an activation signal has been received, switches the control unit to the operating mode. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A field device, comprising:
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a control device including a control unit controlling the field device and a separate monitoring unit, wherein the control unit selectively switches to one of an operating mode and a sleep mode, wherein the control unit, before the sleep mode is assumed, transmits a deactivation signal to the monitoring unit, and wherein the monitoring unit, after an activation signal has been received, switches the control unit to the operating mode.
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25. A method for controlling a field device, comprising:
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switching to a sleep mode by a control unit; transmission of a deactivation signal from the control unit to a separate monitoring unit prior to switching to the sleep mode; reception of an activation signal by the monitoring unit; and switching of the control unit to an operating mode by the monitoring unit after receipt of the activation signal. - View Dependent Claims (26)
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27. A program element for a control for a field device which, when executed by the control, carries out a method which comprises of the following steps:
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switching to a sleep mode by a control unit; transmission of a deactivation signal from the control unit to a separate monitoring unit prior to switching to the sleep mode; reception of an activation signal by the monitoring unit; and switching of the control unit to an operating mode by the monitoring unit after receipt of the activation signal.
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28. A computer-readable medium on which a program element for a control for a field device is stored, the program element when executed by the control, carries out a method which comprises of the following steps:
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switching to a sleep mode by a control unit; transmission of a deactivation signal from the control unit to a separate monitoring unit prior to switching to the sleep mode; reception of an activation signal by the monitoring unit; and switching of the control unit to an operating mode by the monitoring unit after receipt of the activation signal.
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Specification