摘要:
Method of operation and control program for a central unit in an automation system, and the central unit in an automation system and the automation system itself. A central unit (e.g., CPU) (1) in an automation system repeatedly executes a control program (8) that is stored in the central unit (1) and comprises at least two subprograms (TP1-TP3). A single instance of execution occurs within a cycle time (T) which is stipulated by the control program (8). The central unit (1) executes only one of the subprograms (TP1-TP3)—the activated subprogram (TP1-TP3)—at a time. The cycle time (T) is independent of the activated subprogram (TP1-TP3), is shorter than the time (t1+ . . . +t8) required in order to execute all of the subprograms (TP1-TP3), and is at least as long as the longest of the times (T1-T3) required in order to execute one of the subprograms (TP1-TP3) once.
摘要:
The present invention is directed to a method of operation and a control program for a central unit (e.g., CPU) in an automation system repeatedly executing a control program that is stored in the central unit and comprises at least two subprograms. A single instance of execution occurs within a cycle time which is stipulated by the control program. The central unit executes only one of the subprograms—the activated subprogram—at a time. The cycle time is independent of the activated subprogram, is shorter than the time required in order to execute all of the subprograms, and is at least as long as the longest time period required in order to execute one of the subprograms once.
摘要:
For the transmission of a telegram from the control device to the peripheral element an intermediate device receives the telegram from the control device and forwards it without amendment to the peripheral element. For the transmission of a telegram from the peripheral element to the control device the intermediate device receives the telegram from the peripheral element and forwards it without amendment to the control device. The telegrams are safety telegrams, so that telegrams forwarded to the control device or to the peripheral element from the respective receiving unit can be checked for freedom from errors.
摘要:
For the transmission of a telegram from the control device to the peripheral element an intermediate device receives the telegram from the control device and forwards it without amendment to the peripheral element. For the transmission of a telegram from the peripheral element to the control device the intermediate device receives the telegram from the peripheral element and forwards it without amendment to the control device. The telegrams are safety telegrams, so that telegrams forwarded to the control device or to the peripheral element from the respective receiving unit can be checked for freedom from errors.
摘要:
In a numerical control system for controlling a machine tool or a robot, control loops that are not used for the control of drive systems of the tool or robot are utilized to actuate other digital or analog devices. The actual value inputs of these control loops are preferably set to a constant value, such as zero, so that the control loop will switch specified control data through to its output as control signals. The control signals are converted by means of digital-to-analog converters into control voltages.
摘要:
In a method for operating an automation system having a first central unit and a second central unit connected with one another for communication and several automation devices connected for communication to the second central unit, information relating to a plurality of communication channels arranged between the second central unit and a respective automation device is compiled in a communication data record, and information relating to communication relationships with the plurality of communication channels and the respective automation device that can be accessed via the plurality of communication channels is automatically transmitted to the first central unit, based on a communication data record.
摘要:
A method of operating a press designed to eliminate fluctuations of the pressing force in a press. The maximum actual value of the stroke's pressing force is averaged over n strokes. The average value is compared with a desired value, and when there is a deviation, a position adjustment in the press is triggered by means of a controller. An example of the press position adjustment is a displacement of the axis of the slide.
摘要:
In a method for operating an automation system having a first central unit and a second central unit connected with one another for communication and several automation devices connected for communication to the second central unit, information relating to a plurality of communication channels arranged between the second central unit and a respective automation device is compiled in a communication data record, and information relating to communication relationships with the plurality of communication channels and the respective automation device that can be accessed via the plurality of communication channels is automatically transmitted to the first central unit, based on a communication data record.
摘要:
An automation system as well as a method for programming a data communication for an automation system are described. Components are stations participating in the data communication. Sub-components can be associated with the components. A data message of the data communication includes data locations which can be freely associated with a sub-component. Data messages are generated automatically if the configuration of the automation system and the associated structure of the data communication are known.