EP1532497A2 - Procede, dispositif et systeme pour afficher les donnees d'un systeme de commande de machine - Google Patents

Procede, dispositif et systeme pour afficher les donnees d'un systeme de commande de machine

Info

Publication number
EP1532497A2
EP1532497A2 EP03794911A EP03794911A EP1532497A2 EP 1532497 A2 EP1532497 A2 EP 1532497A2 EP 03794911 A EP03794911 A EP 03794911A EP 03794911 A EP03794911 A EP 03794911A EP 1532497 A2 EP1532497 A2 EP 1532497A2
Authority
EP
European Patent Office
Prior art keywords
data
machine control
control system
circuit diagram
status data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP03794911A
Other languages
German (de)
English (en)
Inventor
Robert Giehrl
Stefan Ramsauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Krones AG
Original Assignee
Krones AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Krones AG filed Critical Krones AG
Publication of EP1532497A2 publication Critical patent/EP1532497A2/fr
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G05B19/056—Programming the PLC
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/13—Plc programming
    • G05B2219/13047—Display data on chart with comment, message about type of data

Definitions

  • the present invention relates to systems in which at least one machine is controlled, and in particular to a method, an apparatus and a system for displaying data of such a machine control system.
  • Modern production machines have to fulfill a variety of different functional requirements and at the same time have a high degree of flexibility. These properties are achieved, among other things, through the use of complex machine controls. In such a system, it is often a major challenge to find the cause of an error. For example, the fault on a controlled machine may become apparent even though it is triggered in a control unit of a remote machine. Therefore, specialized service or maintenance terminals are increasingly being used for fault analysis in complex machine control systems.
  • the 1 shows a service terminal 2 which supports a user in troubleshooting, maintenance, commissioning, etc. in the machine control system 1.
  • the service terminal 2 comprises a screen 18 and a keyboard 19. Furthermore, it is connected to the machine control system 1 wirelessly or by means of a cable via its access point 16.
  • various machines 11 to 13 are connected to one another via a bus 17, each of which can comprise its own control unit.
  • a data server 15 provides all the data available in the system 1, for example for display on a stationary operator terminal 14 or on the mobile service terminal 2. For normal control operation, the state of the system 1 or the state of one of the machines 11 to 13 (components) shown on the operator terminal 14 so that the system 1 can be monitored and / or controlled at the operator terminal 14.
  • Terminal 2 usually uses a window-based operating system, software for controlling system 1 and software for displaying image data.
  • the operator of terminal 2 is shown the status of system components by the control software in a first window.
  • data are used that are received from the data server 15.
  • the operator can have a circuit diagram of the system displayed, at least in part.
  • the circuit diagram is saved as an image file that shows an E-CAD drawing, for example.
  • the operator uses the circuit diagram to check how the individual electronic elements of the system 1 are connected to one another. He recognizes in the second window for which element he has to check the condition in the first window next, in order to e.g. B. to gradually locate an error.
  • the operator of mobile terminal 2 must consequently switch back and forth between the representation of the state data and the representation of the circuit diagram in an iterative process. It is therefore the object of the present invention to provide a method, an apparatus and a system for displaying data of such a system which is improved in handling for the operator.
  • state data for at least one element of the system are received according to the invention, which represent at least one physical state variable.
  • the status data received for the element are presented to the operator in a circuit diagram which, at least for the element, indicates the electrical connection of the element in the system. Switching back and forth between the different windows is thus avoided for the operator. Commissioning, maintenance, troubleshooting, etc. of the machine control system becomes much more efficient because the operator gets a better overview of the system status faster.
  • the circuit diagram is represented on the basis of an identifier stored for the element and connection data associated with the identifier.
  • the connection data represents the electrical connection of the element in the system.
  • the step of receiving the status data it is particularly advantageous to identify the elements that are to be represented in the circuit diagram and to receive only the status data for the identified elements. An unnecessary transmission of status data can thus be avoided.
  • the default value is set in the machine control system as a value for the corresponding status variable. This gives the operator the opportunity to change the status of the system or to force a specific status as part of the error analysis in order to observe the reaction in the system.
  • corresponding setpoints or limit values are displayed with the status data for the element. This makes it easier for the operator to check whether a value displayed for a condition means an error.
  • previous status data are given for the element, which state at least one previous value for the status variable.
  • the operator can be shown the development of certain status data over time, for example in a time window before an error occurred.
  • a device according to the invention is adapted to carry out one of the above methods. Accordingly, a system according to the invention is formed by such a device and the machine control system.
  • Figure 1 shows a machine control system with a maintenance terminal.
  • FIG. 2 shows a schematic representation of the units of a device according to the invention
  • connection data for a circuit diagram
  • FIG. 6 shows a view of a window shown on a screen, in which state data of bus subscribers are shown according to the invention
  • FIG. 7 is a view of a window displayed on a screen, in which state data according to the invention are shown in an assembly overview for units with several elements; and 8 is a view of a window shown on a screen, in which state data for individual elements are shown in a circuit diagram according to the invention.
  • the invention can be applied, for example, to the machine control system 1 with its components shown and already described in FIG.
  • Any system through which at least one machine is controlled is to be regarded as a machine control system.
  • the machine control system is initially only limited by the fact that status data for components of the system and their elements are provided or must be accessible.
  • the status data represent a physical status variable of the element, in particular during control operation in the machine control system.
  • FIG. 2 shows functional units of a device according to the invention, the device also being referred to below as a terminal.
  • a terminal can be, for example, a mobile service or maintenance terminal.
  • a system according to the invention is formed by the terminal and the machine control system.
  • the terminal in FIG. 2 comprises a central processing unit (CPU) 21, a working memory 22, a persistent memory 24, a user input unit 23, a user output unit 25, a data memory 26 for storing circuit diagrams and an interface unit 27.
  • CPU central processing unit
  • working memory 22 a working memory 22
  • persistent memory 24 a persistent memory 23
  • user input unit 23 a user input unit 23
  • user output unit 25 a data memory 26 for storing circuit diagrams and an interface unit 27.
  • the user output unit 25 comprises at least one display unit, usually in the form of a screen.
  • the device can exchange data with the machine control system via the interface unit 27.
  • the terminal device receives status data for at least one element of the machine control system by means of the interface unit 27.
  • the received status data are presented by the user output unit 25 to an operator of the terminal in a circuit diagram which, at least for the element, illustrates the electrical connection of the element in the system.
  • the corresponding method steps are explained in more detail below with reference to FIG. 5.
  • connection data for the elements of the machine control system.
  • the connection data can be taken directly from an E-CAD system or converted from an E-CAD format into a standardized ECAD format. They are then either saved in the standardized format or in a data format that is common for E-CAD systems, such as WS, DWG, PDF or DXF.
  • the interface unit 27 can provide a wireless and / or a fixed connection to the machine control system. For example, it is expedient to receive the current status data wirelessly in order to utilize the mobility of the terminal.
  • the circuit diagram data or connection data for the circuit diagram of a machine control system to be serviced can be transferred to the terminal in advance, so the terminal can be used flexibly.
  • a connecting cable reversibly connected to the terminal can be used in order to achieve a higher transmission rate than with wireless transmission. It is also possible to open the circuit diagram data To store data carriers that can be inserted into a corresponding drive on the end device.
  • the user output unit 25 can also comprise a loudspeaker, a printer or corresponding connections as further units.
  • the user input unit 23 can comprise individual keys, a keyboard, a mouse, a surface sensitive to touch or a microphone.
  • the data stored for this section in the data memory 26 are read out.
  • the elements to be shown in the section are identified by the identifier. Only data for the identified elements are requested or received via the data interface unit 27.
  • the status data received in this way are presented to the operator in the circuit diagram by means of the output unit 25.
  • the operator is also given the opportunity to change the value of this status variable in the machine control system.
  • the operator inputs a corresponding default value for the state variable via the user input unit 23.
  • the default value is transferred to the machine control system as a value to be set and is also set accordingly.
  • the default value can thus be forced as a value for the state size of an element.
  • the operator observes the response of the machine control system to this changed condition.
  • the persistent memory 24 stores a program that is suitable for the to provide the described functionality of the terminal. This program controls both the receipt of the status data and their representation in the circuit diagram.
  • connection data for example in the form of E-CAD data.
  • positions assigned to an element For an image file that shows sections of the circuit diagram, positions assigned to an element must be saved as circuit diagram data.
  • the position indicates a relative position in the image file, which allows the terminal to display the status data on or near the element.
  • the terminal device represents the image file and thus the element. Based on the position assigned to the element, the status data on or near the element is displayed.
  • the circuit diagram can also be built up element by element from image files.
  • the element is assigned an image file which represents at least the element.
  • the reference between the element and the assigned image file and information on the connection or arrangement of the elements must be saved as circuit diagram data.
  • Connections between the elements can also be managed as image files.
  • the positions of the image files can also be stored in a respective circuit diagram section.
  • the terminal interprets the stored information in order to put together the representation of the circuit diagram from the image files.
  • the status data are displayed in the image file of the respective element.
  • the circuit diagram data required for or together with the image files can be provided by means of an automatic converter.
  • the converter can be arranged in the machine control system or in an E-CAD system in order, for example, to automatically generate current circuit diagram data and / or image files from changed E-CAD data.
  • FIG. 5 shows a flowchart for a corresponding method for displaying data of a machine control system with steps 52 and 53.
  • a step 51 of reading circuit diagram data is an optional step.
  • step 52 status data for at least one element of the machine control system, which represent at least one physical status variable, are received.
  • the received status data are shown in a circuit diagram which, at least for the element, indicates the electrical connection of the element in the system.
  • connection data is read in order to identify the elements which are to be represented in the circuit diagram.
  • An identifier stored for the respective element is then used to determine which status data can be received at all. As a result, only those status data are received in step 52 that are subsequently to be displayed for the operator in step 53.
  • receiving status data also includes requesting the status data accordingly.
  • Previous values of a state can also be requested and received. Some errors only occur once and are subsequently no longer reproducible, especially as long as the The cause of the error is not known. For this reason, either the data server 15 or a unit specially provided for this task stores previous status data. For example, the value of a status variable is stored in a ring buffer until an error occurs. Based on previous values, the operator can also later understand the specific development that led to the error.
  • connection data is shown in a table 30 in FIG. 3, a corresponding element ID being indicated as an identifier for each element in a column 31 and an element type being indicated in a column 32.
  • the element type determines the type of the physical state variable of the element.
  • the element type is a switch for element ID 1, a control bit input for element ID 2, a control bit output for element ID 3, a control variable for element ID 4 and for the element ID 5 a tension.
  • Such a table does not have to be created for the elements, but is usually already available in a suitable form thanks to the E-CAD data.
  • the identifier of column 31 should preferably be selected such that it is also suitable for identifying the element in the machine control system.
  • FIG. 4 shows state data in tabular form for the elements with the identification 1 to 5 from FIG. 3.
  • Column 42 shows an actual value for the respective element.
  • a column 43 there are setpoints for the corresponding element or in a column 44 a range for allowed values of the status data of the corresponding element are shown.
  • setpoints and / or range values can be displayed either automatically or at the request of the operator of the terminal.
  • Such an expanded representation can be triggered by the operator, for example, by selecting the element shown in the circuit diagram with an input unit.
  • 6 to 8 show three different views which are displayed to an operator on the screen of a terminal according to the invention. State data are shown on or in the elements shown.
  • the units 62 to 69 which are connected to one another sequentially are each shown with a field 61 for status information.
  • This form of representation is particularly suitable for testing a signal chain or bus participants.
  • the signal flow from the key box 69, via the signal exchange unit 68, the sorting unit 67, the machine drive 66, the emergency stop switch 65, the voltage supply 64 to the power supply unit 62 and the control unit 63 is shown.
  • the associated status data which are displayed in field 61, it can now be recognized from which unit in the chain the status data indicate an error.
  • the following status variables can be represented by a single bit of status data: on or off, control bit set or not set, error or non-error, switch closed or not closed. As shown in the example of FIG such status data is simply represented by a corresponding white or black area 61. In particular, signal colors such as red and green can be used.
  • the color of the entire element shown or the background color for an element can also be used as a representation of the state of the element. Accordingly, closed switches are shown in green and open switches in red, for example. An additional administrative effort for the size and location of the separate areas 61 can thereby be avoided.
  • the representation of the status data can also be adapted to the element. For example, this is done by displaying an open or closed switch, by displaying the actual value, such as an applied voltage, or a graphic representation for a deviation of an actual value from a target value.
  • FIG. 7 shows units 74 and 75 wired between two lines 72 and 73. These units each contain a multiplicity of elements, for example input control bits E.01 and E1 and output control bits AO and A1, the status data of which in fields 71 in the form of a Construction plans are displayed. A selection of which status data of a larger unit should be displayed can automatically be limited to the input and output variables or to parameters that are critical for the unit.
  • Fig. 8 shows a circuit diagram (wiring diagram) with groups 82 to 85 of elements.
  • the status data are displayed in corresponding fields 81.
  • the fields can be colored. If in the Group 83, for example, a measuring device is arranged, however, the value of a corresponding measured variable is displayed instead of field 81 or in field 81.
  • Each physical or functional unit of the machine control system can be represented as an element of the machine control system.
  • Terminal plans are, cable plans, etc. understood.

Abstract

L'invention concerne un procédé, un dispositif et un système permettant d'afficher les données d'un système de commande de machine. Des données d'état concernant au moins un élément du système, qui représentent au moins une grandeur d'état physique, sont reçues. Les données d'état concernant l'élément reçues, sont représentées sur un schéma de connexion qui indique, au moins pour ledit élément, la connexion électrique/physique dudit élément dans le système.
EP03794911A 2002-08-29 2003-08-21 Procede, dispositif et systeme pour afficher les donnees d'un systeme de commande de machine Ceased EP1532497A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10239638 2002-08-29
DE10239638A DE10239638A1 (de) 2002-08-29 2002-08-29 Verfahren, Vorrichtung und System zum Anzeigen von Daten eines Maschinensteuerung-Systems
PCT/EP2003/009261 WO2004025383A2 (fr) 2002-08-29 2003-08-21 Procede, dispositif et systeme pour afficher les donnees d'un systeme de commande de machine

Publications (1)

Publication Number Publication Date
EP1532497A2 true EP1532497A2 (fr) 2005-05-25

Family

ID=31895603

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03794911A Ceased EP1532497A2 (fr) 2002-08-29 2003-08-21 Procede, dispositif et systeme pour afficher les donnees d'un systeme de commande de machine

Country Status (5)

Country Link
US (1) US7761271B2 (fr)
EP (1) EP1532497A2 (fr)
AU (1) AU2003258645A1 (fr)
DE (1) DE10239638A1 (fr)
WO (1) WO2004025383A2 (fr)

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US20060217822A1 (en) * 2005-03-28 2006-09-28 Karthikeya Ramanathan Presenting status information of field devices in process control plants
JP4944111B2 (ja) 2005-08-16 2012-05-30 ベンベニュー メディカル， インコーポレイテッド 脊柱組織伸延装置
DE102010009137A1 (de) * 2010-02-23 2011-08-25 Krones Ag, 93073 Überwachungsvorrichtung für Behältnis-Behandlungsanlagen
US8583387B2 (en) * 2010-06-04 2013-11-12 Ssi Technologies, Inc. Ultrasonic level, on-board diagnostic assessment
US8814873B2 (en) 2011-06-24 2014-08-26 Benvenue Medical, Inc. Devices and methods for treating bone tissue
DE102011056171A1 (de) * 2011-12-08 2013-06-13 Schad Gmbh Steuerungsvorrichtung für Maschinenanlagen
US10085783B2 (en) 2013-03-14 2018-10-02 Izi Medical Products, Llc Devices and methods for treating bone tissue
US20140375957A1 (en) * 2013-06-20 2014-12-25 Northrop Grumman Systems Corporation Discrete area circuit board image projection system and method

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Also Published As

Publication number Publication date
AU2003258645A1 (en) 2004-04-30
AU2003258645A8 (en) 2004-04-30
WO2004025383A2 (fr) 2004-03-25
US7761271B2 (en) 2010-07-20
US20060149397A1 (en) 2006-07-06
DE10239638A1 (de) 2004-03-25
WO2004025383A3 (fr) 2004-12-23

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