摘要:
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.
摘要:
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.
摘要:
A transmitting and receiving unit is provided for a field device for measuring a filling level or a pressure, which has an adaptive error counter. In this way, the sensitivity of the error detection may be adapted to individual needs or to the present length of the communications section. Thus, during wireless communication an optimally set error counter may fundamentally be used according to the distance to be covered without any adjustment needing to be made for this on the user side.
摘要:
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.
摘要:
A measuring apparatus comprises a receiving device, a processing device and a sending device. The receiving device is adapted to receive at least one telegram fragment, and the receiving device is adapted to determine a destination of the at least one telegram fragment, and depending on the destination of the at least one telegram fragment to set an operating state of the processing device. The receiving device is furthermore adapted, from the at least one telegram fragment, to prepare a telegram block, wherein the processing device is adapted, in a first operating state, to determine a telegram boundary of the telegram block, and to determine a type of the telegram block. The processing device is equipped, in a second operating state, to determine a telegram boundary of the telegram block, and to control the sending device such that the sending device sends a telegram subsequent to the telegram boundary.
摘要:
Described is a method for data communication in a communication system. The system includes a plurality of communication participants, each participant having a subsystem responsible for communication. A communication participant acts as master of the communication system, the subsystem of the master being operated continuously. The other communication participants act as communication slaves in the communication system. The subsystems of the communication slaves are de-energized, when no communication takes place. Furthermore, a protocol for controlling a bidirectional communication is provided. Establishment of the communication results from a special initial packet, which is transmitted by a communication slave to a communication master. The initial packet is acknowledged by the master with a confirmation packet. This confirmation packet comprises information, whether subsequent communication is required. Moreover, a communication system is provided, comprising a plurality of communication participants each having a respective subsystem responsible for the communication. At least one communication participant is adapted to act as master in the communication system, having a continuously operating subsystem. The other communication participants are adapted to act as communication slaves in the communication system, having subsystems, which are de-energized, when no communication takes place, whereby the communication participants are sensors.
摘要:
A sensor housing for a field device includes a housing body and a solar module that may be put in place and removed. The solar module supplies the field device with electrical energy and may be placed on top of the housing body at various angles of rotation, as a result of which at the same time an electrical contact between the solar module and an energy storage device is provided.
摘要:
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.
摘要:
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.
摘要:
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.