Boots – shoes – and leggings
Patent
1995-04-19
1997-07-15
Kriess, Kevin A.
Boots, shoes, and leggings
364147, 3649269, 364949, 3649272, 3649274, 395701, G06F 1900
Patent
active
056488998
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a programming unit for a storage-programmable state control.
The German laid open print 37 43 438 discloses a device, which, in accordance with an instantaneous state and an input vector assignment of digital process input variables, effects a transition into a sequential state and a transfer of new control data to an output stage.
The older German Patent Application P 42 26 456.1 describes a storage-programmable state control, which renders possible a state transition from an instantaneous state into a sequential follow up state for a plurality of processors. With this state control, i.e., with this known device, reaction times to changes in the input data are substantially shortened in comparison to an ordinary programmable controller, which during the control operation gradually reads out individual instructions of the control program from a memory in accordance with a processing by a Von-Neumann machine, interprets these and finally executes the appropriate operations.
A programming unit is known from the printed publication, "Automatisieren mit SIMATIC S5-155U" {Automating with SIMATIC S5-155U}, Hans Berger, 1989, which converts a control task into a control program for a programmable controller. All the functions of the control task are programmed or are described by a method of representation: "list of instructions", "sequential function chart", or "ladder diagram". The programming unit converts the programmed functions independently of the methods of representation into a corresponding machine code. This code contains all control functions programmed by the user and is read and interpreted by the programmable controller after the code has been transmitted to the programmable controller. When this known programming unit is used, it is only possible to create a control program for a storage-programmable state control by expending considerable time and energy for programming.
The object of the present invention is to produce a programming unit, which will simplify a programming of a control program in a storage-programmable state control.
This objective is solved by a programming unit for a storage-programmable state control with a memory device, in which is stored a control task created with a software tool in the form of an action-time diagram, which is displayable on a display device and describes input and output signals of a technical process to be controlled in the form of binary and/or analog signals, and which is further processed by means of the software tool to create a control program having control and status codes to solve the control task starting out from an instantaneous state in accordance with the following steps: transitions of the input signals occur; level transition determined at any one time at an instant ti+.DELTA.ta, .DELTA.ta being a first specifiable time span; instant ti-.DELTA.tb, .DELTA.tb being a second specifiable time span; ti+.DELTA.ta; signals that were searched for; signals that were searched for; instant ti+.DELTA.ta.
It is especially advantageous that even a complex control program can be programmed very simply. The programmer creates a generally known action-time diagram, which describes input and output signals of a technical process to be controlled in the form of binary and/or analog signals. If the action-time diagram exhibits analog input and output signals, then a threshold must be established for characterizing a level transition. The corresponding input-, control and status codes of the control program for the state control are generated from this action-time diagram. It is not necessary to have a knowledge of a programming language or of the customary methods for representing a control task in automation technology.
Further advantageous refinements of the invention are revealed in the dependent claims.
On the basis of the drawing, in which one exemplary embodiment of the invention is shown, the invention, its refinements and advantages will be clarified in greater detail.
The Figures show:
FIG. 1 schematically a system controlled
REFERENCES:
patent: 5177420 (1993-01-01), Wada et al.
patent: 5392444 (1995-02-01), Inoue
patent: 5566320 (1996-10-01), Hubert
Banankhah Majid A.
Kriess Kevin A.
Siemens Aktiengesselschaft
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