摘要:
A field device for process automation, composed of at least two components coupleable with one another, wherein, in each of the components, a control/memory unit is provided, in which, in each case, a parameter set with defined parameters is stored, and wherein, for the case, in which the at least two components are coupled with one another, at least one of the control/memory units reads, and compares with one another, the parameter sets stored in the separate control/memory units of the components, and wherein, in the case of a deviation in the parameter sets, the comparing control/memory unit of the control/memory units makes available, to the components coupled with one another, the intersection of the parameters of the parameter sets.
摘要:
A two-part sensor composed of a sensor head and a sensor-head counterpart, testing is performed as to whether a correct sensor head is connected with the sensor-head counterpart.
摘要:
A two-part sensor composed of a sensor head and a sensor-head counterpart, testing is performed as to whether a correct sensor head is connected with the sensor-head counterpart.
摘要:
An arrangement with a superordinated control unit and at least one intelligent field device connectable with the control unit, wherein associated with the control unit is at least one interface with a connection element for accommodating a corresponding connection counterpart. The connection counterpart is associable with an interface module, wherein associated with the interface module is a software protection system securing accessing of the field device. The interface module permits communication between the corresponding field device and the superordinated control unit, wherein associated with the superordinated control unit is a software-protected processing program for the field device, and wherein the processing program is started or enabled via the software protection system, when the connection counterpart of the interface module of the field device is connected with the connection element of the control unit.
摘要:
A field device for process automation, composed of at least two components coupleable with one another, wherein, in each of the components, a control/memory unit is provided, in which, in each case, a parameter set with defined parameters is stored, and wherein, for the case, in which the at least two components are coupled with one another, at least one of the control/memory units reads, and compares with one another, the parameter sets stored in the separate control/memory units of the components, and wherein, in the case of a deviation in the parameter sets, the comparing control/memory unit of the control/memory units makes available, to the components coupled with one another, the intersection of the parameters of the parameter sets.
摘要:
A process automation system for determining, monitoring and/or influencing different process variables and/or state variables in at least one manufacturing or analytical process. Included is: at least one control station; and a plurality of field devices; wherein in each field device at least one sensor is provided for ascertaining a measured value of a process variable and/or state variable and/or an actuator is provided for influencing a process variable and/or state variable by means of an actuating value. Each field device makes available its cyclically or acyclically ascertained, measuring-device-specific, measured values and/or actuating values of the process variable and/or state variable to every other field device of the process automation system as information, and the current information of all ascertained measured values and/or actuating values of the process variables and/or state variables is available to each field device as a current process-state-vector.
摘要:
Described is a method for calibrating and/or adjusting a sensor (10), especially an electrochemical, electrophysical or optical sensor, wherein the sensor (10) has an evaluating electronics (12), which is embodied in such a manner, that a signal produced by the sensor (10) is essentially non-changeable by a subsequent transmission. The sensor (10) is calibrated and/or adjusted at a site other than a later measuring location or a later measuring environment or the like.
摘要:
In a method for producing software modules for field devices for process automation technology (PROFIBUS), wherein the software modules serve as device descriptions and have defined interfaces, in accordance with the FDT/DTM, for application programs in process control systems, syntactically and semantically correct, standard device descriptions are produced in EDD 1.1 from PDM, HCF or company-specific device descriptions for field devices, and the EDD 1.1 versions are then converted into corresponding software modules by means of a compiler C.
摘要:
For simplified supply of potentiometric sensors with a reference electrolyte, a sensor plug head for connecting to a cable connection piece of a potentiometric sensor is provided. The sensor plug head including, besides the usual electric connections, a supply connection for connecting to a reference container of the potentiometric sensor. The supply connection includes, preferably, an electrolyte line and the reference container an opening, with the electrolyte line being connectable to the opening, in order to supply the reference container with electrolyte.
摘要:
In a method for servicing a field device of process automation technology having at least two measurement channels, with the assistance of an external service unit, separate device descriptions are provided in the service unit for the measurement channels. The individual measurement channels can be invoked on the service unit via the corresponding device descriptions as logical units, so that, in servicing, the field device appears to the user as at least two logically independent field devices.