Abstract:
A method and system for configuring at least one communication interface module in a control or automation system includes a communication interface module for coupling at least two field bus systems. At least one first functional unit integrated in the communication interface module implements a connection to a configured superordinate controller via a first communication link on the basis of a first field bus protocol. At least one second functional unit integrated in the communication interface module implements a connection for field devices via a second communication link on the basis of a second field bus protocol. At least one further, third functional unit integrated in the communication interface module is configured to connect further field devices via input and/or output functionalities integrated in the communication interface module, and at least one serial interface integrated in the communication interface module can be used to configure the communication interface module.
Abstract:
A method for generating model data of a plant having at least one sub-part involves: providing at least one respective diagram of an HMI interface for a respective sub-part, which contains topology information thereof; transferring the respective diagram, if necessary, into a computer readable form; importing the respective transferred diagram into a data storage of a computer and preferably automatically extracting model data of the respective sub-part therefrom, wherein the model data describe at least in part the topology of the respective sub-part; and providing the model data to an interface of the computer, wherein extracting model data from a diagram involves: detection of plant objects; and detection of plant object connections.
Abstract:
A resistive voltage divider includes at least a first and a second resistor electrically connected in series. The resistors are made of an electrically resistive film material and each resistor is applied as a trace onto an insulating substrate. The divider's voltage ratio has a value between one hundred and one million. In order to achieve these high voltage ratios, a third resistor is electrically connected in parallel with the second resistor. The trace of the second and of the third resistor each overlap on one end at least in part with a first contacting terminal and on the respective other end at least in part with a second contacting terminal. A compact size of the divider is maintained by arranging the first and second contacting terminals in an interdigitated manner.
Abstract:
Exemplary embodiments are directed to a system and method for configuring a control device in an automation system. The system including a hardware structure, and a programming tool connected to the hardware structure and the control device. The programming tool is configured to transmit a control program and configuration files to the control device, and store a control project in memory. The programming tool registers modifications of the hardware devices using software “FlexConf.ini” as modification information and sets the control device to a mode “control with flexible configuration” via a parameter “FlexControl”. The programming tool also determines a type for transmitting the modification information in the parameter “FlexControl”, and transmits the modification software with the modification information stored therein in accordance with the transmission type set in the parameter “FlexControl” to the control device. The control device then parameterizes the hardware devices and transitions into a “RUN” operating mode.
Abstract:
A system and method are disclosed, which can detect and process a position of at least one storage space device moving a bulk material. A first storage space device can have a gantry having two gantry legs, each of the two gantry legs supported on a linearly displaceable foot element. The system can include at least one first non-contact distance sensor, which is fitted on one of the two foot elements to measure a first relative distance between the one foot element and a first fixed reference point. A second non-contact distance sensor is fitted to the other of the two foot elements in order to measure a second relative distance between the other foot element and a second fixed reference point, and an evaluation unit is configured to determine rotation of the first storage space device about a central vertical axis and control the movement of the foot elements.
Abstract:
A method and device for the programming and configuration of a programmable logic controller are disclosed. The method can include: locating a configuration tool in a programming tool, wherein the configuration tool includes a module in an IEC61131 language; integrating at least one further module into the configuration tool, and executing the programming and configuration of the programmable logic controller in a high-level language using a C-Code editor, and wherein the at least one further module is configured to provide a definition of interfaces between an IEC61131 code and a high-level language code, and provide a configuration of the high-level language code.
Abstract:
A phase-locked loop is provided for estimating a phase angle of a three-phase reference signal. The phase-locked loop includes a device for calculating an estimated first state and an estimated second state at a fundamental frequency on the basis of the reference signal and the estimated fundamental frequency, a device for calculating a fundamental positive sequence component of the reference signal on the basis of the first state and the second state, a device for calculating a direct component and a quadrature component in a reference frame synchronous with the phase angle on the basis of the fundamental positive sequence component and an estimated phase angle, and a device for determining estimates of the estimated fundamental frequency and the estimated phase angle on the basis of the quadrature component.
Abstract:
A resistive voltage divider includes first and second resistors, which are electrically connected in series and are made of a resistive film material which is applied in the form of a trace onto an insulating substrate. The divider's voltage ratio has a value between ten and one million. To improve the accuracy of the voltage divider, the first and second resistors are made of the same resistive film material, have a trace length above a corresponding specific trace length, and have approximately the same trace width.
Abstract:
Exemplary embodiments relate to an optical gas analyzer device that includes at least one measuring chamber in the form of a tubular measuring cuvette through which measuring gas flows. The measuring chamber is illuminated longitudinally by a radiation source that is arranged at an input end thereof and the light beam of which weakened by absorption losses is detected for gas concentration analysis by at least one detector arranged at an output end. The measuring process is calibrated using a reference spectrum. A special optical filter can be inserted into the measuring process in place of the measuring cuvette. The filter material of the filter generates a plurality of strong absorptions across the entire wavelength range of the measuring spectrum in order to cause attenuations that in the particular spectral position correspond to those of the gaseous measuring medium in greater concentration.
Abstract:
An exemplary electrical switch cabinet for use in the low voltage range with voltages up to 500 V and electric currents up to 63 A, is constructed as a wall hung cabinet for surface or recessed mounting or as a standing cabinet, from a rear wall and side wall parts connected thereto. The cabinet can include at least one movable front door, and can be provided with internal fittings for the connection of switching devices arranged in the switch cabinet. The side wall parts and the rear wall are modularly configured and rigidly connected to one another, and the at least one movable front door can be guided in grooves through straps.