摘要:
A field device for automation technology, which has a metal housing for accommodating a field device electronics. On the field device at least one opening is provided, which is closable via a lid composed at least partially of a non-metallic material, wherein an RFID chip and an RF antenna are arranged in the housing in such a manner that communication and energy exchange with an RFID reading device arranged outside of the field device can transpire, and wherein the reading device is so embodied that it provides sufficient energy to the RFID chip when the energy supply to the field device is interrupted, in order to read out via the RFID antenna the data stored on the RFID chip.
摘要:
A method for operating a field device of an industrial process, and/or automation, technology, wherein at least one communication unit is connected with the field device for sending and/or for receiving a signal. An electrical power loss of the communication unit and/or a need of the communication unit for electrical energy, especially in the form of electrical voltage, are/is reduced for an adjustable period of time. Furthermore, a communication unit, as well as to a field device with a communication unit is provided for.
摘要:
A testing body (1) that is provided for verifying the penetration properties of a sterilization agent has, with a compact design, a particularly high detection sensitivity and is thus particularly well-suited or use in the sterilization of minimally invasive surgical instruments that are known to be difficult to remove air therefrom thereby rendering the sterilization thereof problematic. For this purpose, the testing body (1) has a detector volume (24), which is provided for accommodating an indicator (26) and which can be connected to a sterilization chamber via a gas collecting space (4). According to the invention, the gas collecting space (4) has a multistage design, and the cross-section and the volume of each stage (14, 16) decrease between adjacent stages (14, 16) in the direction of the detector volume (24).
摘要:
A circuit arrangement is described with the aid of which a control signal can be generated in dependence upon the occurrence of an extreme value of a sinusoidal oscillation. The circuit arrangement (10) includes a storage member (22) which is adapted to be charged via a diode (20) to one of the extreme values of the sinusoidal oscillation. A discharge path (26) for the storage member (22) is present, the time constant of which is so dimensioned that within the period duration of the sinusoidal oscillation an appreciable discharge of the storage member (22) takes place. A switch element (24) controllable by the charge voltage of the storage member (22) furnishes the control signal at its output (14) for the period of time during which the charge voltage at the storage member (22) is smaller than the extreme value of the sinusoidal oscillation. The circuit arrangement can be used in maintaining the oscillations of a resonance circuit stimulated to oscillate by means of a momentary HF carrier wave pulse.
摘要:
A method for integrating a new participant into a wireless communication network of process automation technology, wherein the network has at least one node. The at least one node is selected at least on the basis of a predeterminable criterion, and that the at least one selected node is placed in an integration mode, which enables integration of the new participant into the network.
摘要:
A testing body (1) that is provided for verifying the penetration properties of a sterilization agent has, with a compact design, a particularly high detection sensitivity and is thus particularly well-suited or use in the sterilization of minimally invasive surgical instruments that are known to be difficult to remove air therefrom thereby rendering the sterilization thereof problematic. For this purpose, the testing body (1) has a detector volume (24), which is provided for accommodating an indicator (26) and which can be connected to a sterilization chamber via a gas collecting space (4). According to the invention, the gas collecting space (4) has a multistage design, and the cross-section and the volume of each stage (14, 16) decrease between adjacent stages (14, 16) in the direction of the detector volume (24).
摘要:
Method for operating a measuring point having a base unit and a sensor unit, wherein the latter couples via a pluggable connector coupling with the base unit; the base unit serves for energy supply of the sensor unit, for data exchange with the sensor unit and for communication with a process monitoring installation, wherein the base unit includes: A first element of the pluggable connector coupling; a first microprocessor sensor data conditioning for communication with the process monitoring installation; a first data memory for saving measuring-point-specific data; wherein the sensor unit has a primary sensor and a sensor head; the primary sensor includes a transducer, which outputs a measured variable dependent signal; wherein the sensor head includes: A circuit for conditioning the transducer signals with an A/D converter and a second microprocessor for measurement signal processing, a second data memory for sensor data; a program memory which contains a firmware; and an interface with a second element of the pluggable connector coupling; wherein a software module is transmitted from the base unit to the sensor unit and is stored in the program memory of the sensor unit, for enabling supplementary functions for primary sensor monitoring.
摘要:
A method for integrating at least one field device, which is connected with a mobile unit, into a network of process automation technology. The mobile unit authenticates itself via a connection in the network, and that it receives at least one integration parameter for integration into the network (3).
摘要:
In a method for monitoring a network of process automation technology, wherein the network includes a number of field devices, which are connected via a fieldbus with a superordinated unit, there is created for a network application, which analyzes the network, a network description, which corresponds to a device description for field devices. Therewith, the network application can be integrated in a simple manner into a plant monitoring application and status information of the network can be output via the plant monitoring application.
摘要:
A circuit arrangement is described with the aid of which a control signal can be generated in dependence upon the occurrence of an extreme value of a sinusoidal oscillation. The circuit arrangement (10) includes a storage member (22) which is adapted to be charged via a diode (20) to one of the extreme values of the sinusoidal oscillation. A discharge path (26) for the storage member (22) is present, the time constant of which is so dimensioned that within the period duration of the sinusoidal oscillation an appreciable discharge of the storage member (22) takes place. A switch element (24) controllable by the charge voltage of the storage member (22) furnishes the control signal at its output (14) for the period of time during which the charge voltage at the storage member (22) is smaller than the extreme value of the sinusoidal oscillation. The circuit arrangement can be used in maintaining the oscillations of a resonance circuit stimulated to oscillate by means of a momentary HF carrier wave pulse.