Abstract:
An electrical and/or electronic supply circuit, which serves to provide a first or a second, essentially constant value of a supply voltage, which supply voltage serves to operate an operating electronics. The supply circuit serves to output the first value of the supply voltage when the supply voltage is derived from a first voltage source, and the supply circuit serves to output the second value of the supply voltage when the supply voltage is derived from a second voltage source.
Abstract:
An electrical and/or electronic supply circuit, which serves to provide a first or a second, essentially constant value of a supply voltage, which supply voltage serves to operate an operating electronics. The supply circuit serves to output the first value of the supply voltage when the supply voltage is derived from a first voltage source, and the supply circuit serves to output the second value of the supply voltage when the supply voltage is derived from a second voltage source.
Abstract:
A field device for determining and/or monitoring a physical or chemical, process variable in automation technology. The field device comprises: at least one microcontroller; a supply unit of limited capacity as primary voltage supply; and a detection circuit, which signals the microcontroller of a failure of the supply unit so early by means of a detection signal that sufficient time is available to take suitable safety measures, in order to avoid loss of data. The detection circuit is so embodied that a reference voltage required for detection of a voltage decline of the supply unit has an almost constant offset from the supply voltage of the supply unit and adjusts to the supply voltage, until the detection circuit, in the case of an abrupt subceeding of the reference voltage, or an abrupt voltage decline of the supply voltage, sends a detection signal to the microcontroller.
Abstract:
An autarkic field device or an autarkic radio adapter for a field device, of automation technology fed with limited energy via an energy supply unit associated, or associable, with the field device or the radio adapter. Between the energy supply unit and an internal voltage source, whose voltage exceeds, or at times can exceed, the voltage of the energy supply unit, a barrier of at least one diode group having at least two diodes connected in parallel is arranged, which blocks flow of electrical current from the internal voltage source to the energy supply unit or to the connection terminals of the field device or of the radio adapter for the energy supply unit.
Abstract:
A radio unit for a plant of process automation technology. The radio unit has a power circuit, which serves to derive first and second supply voltages from a voltage source, wherein the power circuit has a first output, via which the first supply voltage is tappable to serve for driving an operating electronics of the radio unit, wherein the power circuit has at least a second output, via which the at least a second supply voltage is tappable to serve for driving at least one field device connectable to the second output.
Abstract:
An autarkic field device or an autarkic radio adapter for a field device, of automation technology fed with limited energy via an energy supply unit associated, or associable, with the field device or the radio adapter. Between the energy supply unit and an internal voltage source, whose voltage exceeds, or at times can exceed, the voltage of the energy supply unit, a barrier of at least one diode group having at least two diodes connected in parallel is arranged, which blocks flow of electrical current from the internal voltage source to the energy supply unit or to the connection terminals of the field device or of the radio adapter for the energy supply unit.
Abstract:
The invention relates to an autarkic field device or an autarkic radio adapter (2) for a field device (1), of automation technology fed with limited energy via an energy supply unit (3) associated, or associable, with the field device (1) or the radio adapter (2), characterized in that, between the energy supply unit (3) and an internal voltage source (4), whose voltage exceeds, or at times can exceed, the voltage of the energy supply unit (3), a barrier (5a; 5b) of at least one diode group having at least two diodes (6) connected in parallel is arranged, which blocks flow of electrical current from the internal voltage source (4) to the energy supply unit (3) or to the connection terminals (7) of the field device (1) or of the radio adapter (2) for the energy supply unit (3).
Abstract:
An apparatus having an electronics unit and a battery unit for energy supply of the electronics unit, wherein the battery unit has a first formed part, and wherein the electronics unit has a second formed part. The first and second formed parts are connectable with one another, wherein, by orienting, especially by rotating, the first formed part, respectively the second formed part, the first formed part and the second formed part are connectable with one another in different installed positions, and wherein the energy supply of the electronics unit occurs from the battery unit as a function of the installed position, in which the first formed part is connected with the second formed part.
Abstract:
A universal interface for a wireless adapter, which supports a communication protocol used in automation technology, wherein associated with the wireless adapter are a first energy supply unit for energy supply of the wireless adapter and a radio module for communication with a superordinated control unit via a radio network, wherein provided on the interface are at least five connection terminals, which are so embodied that, as a function of a field installation that is to be connected, a portion of the connection terminals is connectable either with different embodiments of field devices or with a servicing device.
Abstract:
A method for optimizing the parameter setting of at least one energy supply parameter of a field device power supply module. The field device power supply module is, in such case, connected exclusively to one field device. The connected field device is supplied with electrical energy by the field device power supply module. In the method, the system composed of field device and field device power supply module is operated and a parameter setting of at least one energy supply parameter varied. In such case, the operation of the field device is monitored. Parameter settings are ascertained, in the case of which a relatively low energy consumption of the field device and simultaneously a safe operation of the field device can be realized in the relevant operational phase.