Abstract:
This invention relates to a data transmission system for wireless communication of a control device with a field unit via a radio transmission device. The communication between control device and radio transmission device takes place via a field bus protocol. Likewise, the communication of the field unit with the radio transmission device takes place via a field bus protocol. The radio transmission device is capable of transmitting the field bus protocol by a radio protocol.
Abstract:
Stated is a charging-current regulating device for charging an energy storage device for a field device, and for regulating a charging current for the energy storage device, wherein regulating the charging current for the energy storage device takes place in such a manner that a limiting value relating to an input current of the field device is not exceeded. Regulating the charging current may take place in such a manner that energy storage takes place as quickly as possible and without overloading an input protection circuit of the field device.
Abstract:
A method for generating a device description for a measuring apparatus in a target field bus protocol is described. The method comprises the reception of a first device description of the apparatus. The first device description of the apparatus comprises at least one variable. The at least one variable is related to a storage cell of the apparatus. The target field bus protocol is selected from a plurality of field bus protocols, and at least one block is formed from the at least one variable. The at least one block has a maximum block size that corresponds to the smallest maximum block size of at least two field bus protocols of the plurality of field bus protocols. The maximum block size can be transmitted via a field bus with a single request when the respective field bus protocol is used. Subsequently, the at least one block is provided as device description for the apparatus in the target field bus protocol.
Abstract:
A control module of a field device includes an image processing module that is able to generate an image from process data of the field device, which process data are present in numerical form, which image can be displayed by a corresponding image display unit, for example the display of a PDA, in such a manner that a person can directly interpret the process data.
Abstract:
A communication module for a measuring instrument may include a first interface, a second interface, and an integrated web client. To the first interface a measuring instrument can be connected, whereas to the second interface a database can be connected. The communication module is configured to receive at the first interface a measurement value and to forward it to the second interface by the web client.
Abstract:
The invention relates to a process in a control system for identifying nonequivalent functionality between a device software and an assigned device driver, in which information (TR-ID) identifying a given version of the device driver and/or information (SW-ID) identifying a given version of the device software is transmitted between a device control mechanism (GC) and a device (G) over an interface (CI, GI) between said device control mechanism (GC) and said device (G); the information (TR-ID) identifying a given version of the device driver and the information (SW-ID) identifying a given version of the device software are compared with respect to functional equivalence; and an update is executed in the case of functional nonequivalence and/or an error announcement is issued. The invention also relates to a system configuration for implementing such a process.
Abstract:
The present invention relates to a method for automatic modeling a process control system in which elements of a user interface are arranged in a tree structure reflecting the topography of the elements in the process control system. Each element is assigned to at least one input window having a plurality of attributes for setting and/or monitoring a target apparatus controllable in the process control system. The current arrangement of the tree structure is stored as a project, and a list of all windows opened during the same current operation as well as their attributes are stored as an operating session, to thereby be able to restore the state of the elements when loading the process control system again. Moreover, the invention relates to a process control system adapted to carry out the above-referenced method.
Abstract:
Stated is a charging-current regulating device for charging an energy storage device for a field device, and for regulating a charging current for the energy storage device, wherein regulating the charging current for the energy storage device takes place in such a manner that a limiting value relating to an input current of the field device is not exceeded. Regulating the charging current may take place in such a manner that energy storage takes place as quickly as possible and without overloading an input protection circuit of the field device.
Abstract:
A field device acquires measured values and transferring data in an energy-controlled manner. A control device monitors the quantity of energy collected in the field device and triggers data transfer only when the quantity of energy collected has exceeded a predetermined threshold value. In particular, data transfer can take place at irregular intervals.
Abstract:
This invention relates to a data transmission system for wireless communication of a control device with a field unit via a radio transmission device. The communication between control device and radio transmission device takes place via a field bus protocol. Likewise, the communication of the field unit with the radio transmission device takes place via a field bus protocol. The radio transmission device is capable of transmitting the field bus protocol by a radio protocol.