EP0436818B1 - Diagnostic system for digitally controlled devices - Google Patents

Diagnostic system for digitally controlled devices Download PDF

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Publication number
EP0436818B1
EP0436818B1 EP90122511A EP90122511A EP0436818B1 EP 0436818 B1 EP0436818 B1 EP 0436818B1 EP 90122511 A EP90122511 A EP 90122511A EP 90122511 A EP90122511 A EP 90122511A EP 0436818 B1 EP0436818 B1 EP 0436818B1
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Prior art keywords
processors
volatile memory
processor
memory
modules
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German (de)
French (fr)
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EP0436818A2 (en
EP0436818A3 (en
Inventor
Robert Müller
Anton Rodi
Dieter Hauck
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Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F33/00Indicating, counting, warning, control or safety devices
    • B41F33/0009Central control units

Definitions

  • the invention relates to a device for monitoring an electronic control device for a printing press with assemblies connected by means of a bus system, at least one memory, at least one input and output unit and at least one display device.
  • control of printing presses with the aid of digital control devices often also includes functions in which errors can lead to considerable material damage or even endanger people. Particularly in the case of complex structures of control devices, very high demands are therefore also placed on the reliability of individual system components.
  • EP-A-0 243 661 describes a printing press with a number of measuring devices, sensors generating electronic signals, electronically controllable actuators, units and at least one control and monitoring desk for monitoring, controlling and regulating the entire printing process.
  • This application includes central overall electronics which controls and monitors the entire processing of all sensor signals and the entire coordination of the actuating signals by means of a data processing and control device.
  • two processors are provided for testing and monitoring, which, in addition to the modules assigned to them, also test and monitor the other processor and means for communication between the processors.
  • test results - are referred to below as error messages in the event of errors.
  • non-volatile storage is provided in order to be able to evaluate important data even after the printing machine or the control device has been switched off.
  • error messages, Test results or operating parameters can be saved.
  • the data can preferably be stored in such a way that the most recent data is in a non-volatile memory.
  • each computer 1, 2 has a (micro) processor 3, 4 and further assemblies, such as, for example, main memory, program memory and internal bus system, the explanation of which is, however, not necessary to understand the present invention.
  • error messages can also be evaluated when the corresponding card is removed from the control device and is, for example, for repair purposes at the manufacturer or a maintenance facility.
  • a central display unit 11 is connected to the computer 1 via a serial interface 12 to display the data occurring during the operation of the printing press.
  • the interface 12 and the display unit 11 are also used to display error messages.
  • Additional display units 13, 14 are connected to the input / output unit 8 via serial interfaces 15, 16 and also serve to display error messages in addition to displaying operational data.
  • the computer 2 for controlling the main drive is connected to a control card 17 for the main drive, to which the motor 19 of the main drive is connected via a power stage 18.
  • the control card 17 also has a connection to the system bus 7 so that, for example, the computer 1 can query the state of the power control card 17.
  • a plurality of power supply units are provided for the voltage supply of the digital control device, of which only two power supply units are shown as examples in FIG. 1. For security reasons, it is provided that the computer 1 and the central display unit 11 are connected to a first power supply unit 20 and the computer 2, the input / output unit 8 and the further display units 13, 14 are connected to a second power supply unit 21.
  • the computer 1 By using a connection between the computer 1 and the central display unit 11 that is independent of the system bus 7 and by using a separate power supply unit 20 for these modules, it is also possible to display errors that prevent data flows to one of the display units or on the system bus.
  • Programs are provided for the microprocessors 3, 4, which enable extensive tests and monitoring.
  • the other microprocessor and the communication memory 9 are monitored by each microprocessor.
  • the test and monitoring programs can be designed so flexibly that more or fewer tests are carried out depending on the respective test results. For example, in normal operation it can be provided that each of the microprocessors 3, 4 tests the other microprocessor except for a part of the modules of the control device. However, if the other microprocessor fails, the still functional microprocessor also tests the modules previously tested by the other microprocessor.
  • FIG. 2 shows essential parts of a test program which runs in the microprocessors 3, 4 after the control device has been switched on. After starting at 31, a self-test 32 is carried out, which is carried out by the respective microprocessor and relates to the respective computer 1, 2. In the event of an error, a corresponding error message is stored at 33 and fed to the central display unit 11 (FIG. 1) at 34 via the serial interface 12.
  • the communication memory 9 is tested in the program part 35. This is done in a manner known per se by registering and reading out information again. In the event of an error, storage and display take place again, while if the communication memory 9 is free of errors, the other microprocessor is tested in program part 36.
  • test program is ended at 38, after which programs for activating the printing press are activated. This can also be done in accordance with the program parts store 33 and display 34 if no errors have been found beforehand which prevent proper operation of the printing press.

Abstract

In a diagnostic system for a digital control device of a printer, at least one processor is provided with a program for testing modules of the control device and for monitoring parameters during the operation of the printer. The results of the tests and of the monitoring of the parameters are displayed and/or stored. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum überwachen einer elektronischen Steuereinrichtung für eine Druckmaschine mit mittels eines Bussystems verbundenen Baugruppen, mindestens einem Speicher, mindestens einer Ein- und Ausgabeeinheit und mindestens einem Anzeigegerät.The invention relates to a device for monitoring an electronic control device for a printing press with assemblies connected by means of a bus system, at least one memory, at least one input and output unit and at least one display device.

Die Steuerung von Druckmaschinen mit Hilfe von digitalen Steuereinrichtungen umfaßt häufig auch Funktionen, bei welchen Fehler zu erheblichen materiellen Schäden oder sogar zu Gefährdungen von Personen führen können. Insbesondere bei komplexen Strukturen von Steureinrichtungen werden deshalb sehr hohe Anforderungen auch an die Zuverlässigkeit einzelner Systemkomponenten gestellt.The control of printing presses with the aid of digital control devices often also includes functions in which errors can lead to considerable material damage or even endanger people. Particularly in the case of complex structures of control devices, very high demands are therefore also placed on the reliability of individual system components.

Aus der EP-A-0 243 661 ist eine Druckmaschine beschrieben mit einer Anzahl von Meßeinrichtungen, elektronische Signale erzeugenden Sensoren, elektronisch steuerbaren Stellgliedern, Aggregaten sowie wenigstens ein Steuer- und überwachungspult zur überwachung, Steuerung und Regelung des gesamten Druckablaufes. Diese Anmeldung umfaßt eine zentrale Gesamtelektronik, die die gesamte Verarbeitung sämtlicher Sensorsignale sowie die gesamte Koordination der Stellsignale mittels einer Datenverarbeitungs- und Steuereinrichtung steuert und überwacht.EP-A-0 243 661 describes a printing press with a number of measuring devices, sensors generating electronic signals, electronically controllable actuators, units and at least one control and monitoring desk for monitoring, controlling and regulating the entire printing process. This application includes central overall electronics which controls and monitors the entire processing of all sensor signals and the entire coordination of the actuating signals by means of a data processing and control device.

Trotzdem können innerhalb der Steuereinrichtung, im Bereich der Sensoren und Stellglieder, welche die Steuereinrichtung mit der Druckmaschine verbinden, und bei der Druckmaschine Fehler auftreten. Außerdem ist es bei Druckmaschinen wichtig, aufgetretene Fehler möglichst schnell und mit dem am Ort der Druckmaschine vorhandenen Personal zu beheben.Nevertheless, errors can occur within the control device, in the area of the sensors and actuators that connect the control device to the printing press, and in the printing press. In addition, it is important for printing presses to correct any errors as quickly as possible and with the personnel available at the location of the printing press.

Aufgabe der vorliegenden Erfindung ist es daher, eine Vorrichtung bzw. ein Verfahren zum überwachen der elektronischen Steuereinrichtung für eine Druckmaschine anzugeben, die bzw. das eine sichere Erkennung und Anzeige von Fehlern gestattet. Außerdem sollten Fehler möglichst auch dann erkennbar sein, wenn ein die überwachung an sich durchführender Prozessor ausfällt. Schließlich ist bei Fehlern, welche lediglich sporadisch auftreten oder bei Fehlern, die zum Ausfall der Steuereinrichtung führen, eine nachträgliche Diagnose erforderlich.It is therefore an object of the present invention to provide a device or a method for monitoring the electronic control device for a printing press, which device allows reliable detection and display of errors. In addition, errors should also be detectable if possible if a processor performing the monitoring fails. Finally, in the case of errors which only occur sporadically or in the case of errors which lead to the failure of the control device, subsequent diagnosis is required.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß sie mindestens zwei Baugruppen aufweist, wobei eine Baugruppe zur zentralen Steuerung der Druckmaschine und eine andere Baugruppe zur Steuerung des Hauptantriebs dient, daß die Baugruppen jeweils mindestens einen Prozessor und jeweils einen nicht flüchtigen Speicher aufweisen, daß die Baugruppen mindestens eine separate Schnittstelle aufweisen, die mit einer zentralen Anzeigeeinheit verbunden ist, und daß jede Baugruppe ein separates Netzgerät aufweist. Ferner wird die Aufgabe durch das erfindungsgemäße Verfahren dadurch gelöst, daß nach dem Einschalten zunächst ein Selbsttest der Prozessoren erfolgt, das danach nacheinander von jeweils einem der Prozessoren ein zur Kommunikation zwischen den Prozessoren dienender Schreib- , Lesespeicher getestet wird und daß nach dem Test des Schreib-, Lesespeichers ein Test der Prozessoren untereinander erfolgt.The object is achieved in that it has at least two modules, one module for central control of the printing press and another module for controlling the main drive that the modules each have at least one processor and a non-volatile memory that the modules have at least one separate interface, which is connected to a central display unit, and that each assembly has a separate power supply. Furthermore, the object is achieved by the method according to the invention in that after switching on, a self-test of the processors is first carried out, which is then successively tested by one of the processors in each case a read / write memory used for communication between the processors, and after the test of the write -, Read memory a test of the processors with each other.

Zur weiteren Erhöhung der Sicherheit sind zwei Prozessoren zum Testen und überwachen vorgesehen, die außer ihnen jeweils zugeordneten Baugruppen auch den jeweils anderen Prozessor und Mittel zur Kommunikation zwischen den Prozessoren testen und überwachen.To further increase security, two processors are provided for testing and monitoring, which, in addition to the modules assigned to them, also test and monitor the other processor and means for communication between the processors.

Da bei Druckmaschinen häufig ohnehin eine Aufteilung der Steuerungsaufgaben auf zwei Prozessoren erfolgt, ist eine wirtschaftliche und sichere überwachung dadurch möglich, daß in der Steuereinrichtung für verschiedene Steuerungsaufgaben zwei Prozessoren vorgesehen sind, welche ferner ihnen jeweils zugeordnete Baugruppen und den jeweils anderen Prozessor und Mittel zur Kommunikation zwischen den Prozessoren testen und überwachen.As printing presses are often divided into two processors anyway, one is Economic and safe monitoring possible because two processors are provided in the control device for different control tasks, which further test and monitor the modules assigned to them and the other processor and means for communication between the processors.

Bei dem erfindungsgemäßen Diagnosesystem können einerseits Daten ausgewertet werden, die beim Betrieb der Druckmaschine ohnehin vorliegen, beispielsweise Ausgangssignale von Sensoren wie Drehzahlsensoren oder Papiersensoren. Derartige Daten werden im folgenden als Betriebsparameter bezeichnet. Das erfindungsgemäße Diagnosesystem wertet auch Daten aus, welche in Testprogrammen entstehen, wie beispielsweise bei an sich bekannten Programmen zum Testen von Speichern oder Prozessoren. In derartige Tests können auch Betriebsparameter einbezogen werden, beispielsweise in Form von Soll/Ist-Vergleichen oder sogenannten Plausibilitätsprüfungen. Die Ergebnisse derartiger Tests - im folgenden Testergebnisse genannt - werden nachfolgend im Falle von Fehlern als Fehlermeldungen bezeichnet.In the diagnostic system according to the invention, on the one hand, data can be evaluated that are present anyway when the printing press is in operation, for example output signals from Sensors such as speed sensors or paper sensors. Such data are referred to below as operating parameters. The diagnostic system according to the invention also evaluates data that arise in test programs, such as, for example, in programs for testing memories or processors known per se. Operating parameters can also be included in such tests, for example in the form of target / actual comparisons or so-called plausibility checks. The results of such tests - hereinafter referred to as test results - are referred to below as error messages in the event of errors.

Um eine sichere Anzeige von Fehlermeldungen zu ermöglichen, weist
mindestens einer der Prozessoren einen Ausgang für Fehlermeldungen unter Umgehung eines Bussystems auf. Vorteilhaft ist dabei, daß jeder der Prozessoren auf einer eigenen Systemkarte angeordnet ist und daß die Prozessoren unabhängig voneinander mit mindestens je einer Anzeigeeinrichtung verbunden sind.
To enable a reliable display of error messages, points
at least one of the processors has an output for error messages bypassing a bus system. It is advantageous that each of the processors is arranged on its own system card and that the processors are independently connected to at least one display device each.

Andere Weiterbildungen der Erfindung beschäftigen sich mit dem Speichern von Informationen, welche für Reparatur- und Wartungsarbeiten wichtig sind. Dabei ist im wesentlichen eine nichtflüchtige Speicherung vorgesehen, um wichtige Daten auch nach dem Abschalten der Druckmaschine bzw. der Steuereinrichtung auswerten zu können. Dazu können je nach Ausführungsform der Erfindung Fehlermeldungen,
Testergebnisse oder Betriebsparameter gespeichert werden. Vorzugsweise können die Daten derart gespeichert werden, daß sich die jeweils neuesten Daten in einem nichtflüchtigen Speicher befinden.
Other developments of the invention deal with the storage of information which is important for repair and maintenance work. In this case, essentially non-volatile storage is provided in order to be able to evaluate important data even after the printing machine or the control device has been switched off. Depending on the embodiment of the invention, error messages,
Test results or operating parameters can be saved. The data can preferably be stored in such a way that the most recent data is in a non-volatile memory.

Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der im Hauptanspruch angegebenen Erfindung möglich.Advantageous further developments and improvements of the invention specified in the main claim are possible through the measures listed in the subclaims.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung anhand mehrerer Figuren dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigt:

Fig. 1
ein Blockschaltbild einer digitalen Steuereinrichtung für eine Druckmaschine mit einem erfindungsgemäßen Diagnosesystem und
Fig. 2
ein Flußdiagramm eines bei dem Ausführungsbeispiel verwendeten Programms.
An embodiment of the invention is shown in the drawing using several figures and explained in more detail in the following description. It shows:
Fig. 1
a block diagram of a digital control device for a printing press with a diagnostic system according to the invention and
Fig. 2
a flowchart of a program used in the embodiment.

Bei der in Fig. 1 dargestellten Steuereinrichtung sind zwei Baugruppen (Rechner) 1, 2 vorgesehen, von denen jeweils einer auf einer Systemkarte angeordnet ist. Der Rechner 1 dient zur zentralen Steuerung der Druckmaschine, während der Rechner 2 im wesentlichen zur Steuerung des Hauptantriebs dient. In an sich bekannter Weise verfügt jeder Rechner 1, 2 über einen (Mikro)Prozessor 3, 4 und weitere Baugruppen, wie beispielsweise Arbeitsspeicher, Programmspeicher und internes Bussystem, deren Erläuterung zum Verständnis der vorliegenden Erfindung jedoch nicht erforderlich ist.In the control device shown in FIG. 1, two assemblies (computers) 1, 2 are provided, one of which is arranged on a system card. The computer 1 serves for the central control of the printing press, while the computer 2 essentially serves for the control of the main drive. In a manner known per se, each computer 1, 2 has a (micro) processor 3, 4 and further assemblies, such as, for example, main memory, program memory and internal bus system, the explanation of which is, however, not necessary to understand the present invention.

Außer diesen Baugruppen sind jedoch auf den Rechnerkarten nichtflüchtige Speicher 5, 6 vorgesehen, welche Testergebnisse, Betriebsdaten und Fehlermeldungen, die zu einer späteren Auswertung erforderlich sind, über ein Abschalten oder über einen Defekt der Steuereinrichtung hinaus speichern. Im Falle von Fehlermeldungen, welche nicht zu einem Ausfall der Steuereinrichtung bzw. des betroffenen Rechners führen, können mehrere Fehlermeldungen gegebenenfalls mit anderen aussagefähigen Testergebnissen und Betriebsparametern abgespeichert werden.In addition to these modules, however, non-volatile memories 5, 6 are provided on the computer cards, which store test results, operating data and error messages that are required for later evaluation, in addition to a shutdown or a defect in the control device. In the event of error messages that do not lead to a failure of the control device or the computer concerned, several error messages can be stored with other meaningful test results and operating parameters, if necessary.

Dadurch, daß in jedem der Rechner 1, 2 ein nichtflüchtiger Speicher 5, 6 vorgesehen ist, können Fehlermeldungen auch dann ausgewertet werden, wenn die entsprechende Karte aus der Steuereinrichtung entfernt und beispielsweise zu Reparaturzwecken beim Hersteller oder einem Wartungsbetrieb ist.Because a non-volatile memory 5, 6 is provided in each of the computers 1, 2, error messages can also be evaluated when the corresponding card is removed from the control device and is, for example, for repair purposes at the manufacturer or a maintenance facility.

Die Rechner 1, 2 sind an einen Systembus 7 angeschlossen, der ferner mit einer Ein/Ausgabeeinheit 8 und einem Kommunikationsspeicher 9 verbunden ist. Der Kommunikationsspeicher 9 dient zum Austausch von Daten zwischen den Rechnern 1, 2 derart, daß der jeweils empfangende Rechner aus dem Kommunikationsspeicher 9 diejenigen Daten abruft, die der sendende Rechner zuvor eingeschrieben hat. Darüberhinaus können im Kommunikationsspeicher 9, der dann als nichtflüchtiger Speicher ausgebildet ist, auch Testergebnisse und Fehlermeldungen abgelegt werden. Diese können dann von beiden Rechnern 1, 2 ausgelesen werden.The computers 1, 2 are connected to a system bus 7, which is further connected to an input / output unit 8 and a communication memory 9. The communication memory 9 serves to exchange data between the computers 1, 2 in such a way that the receiving computer in each case retrieves from the communication memory 9 those data which the sending computer has previously written. In addition, test results and error messages can also be stored in the communication memory 9, which is then designed as a non-volatile memory. These can then be read out by both computers 1, 2.

An die Ein/Ausgabeeinheit 8 sind über Eingänge und Ausgänge 10 Sensoren und Stellglieder angeschlossen, wie es beispielsweise in der Patentanmeldung DE-A-36 42 500 der Anmelderin beschrieben ist.10 sensors and actuators are connected to the input / output unit 8 via inputs and outputs, as described, for example, in the applicant's patent application DE-A-36 42 500.

Zur Anzeige der beim Betrieb der Druckmaschine auftretenden Daten ist eine zentrale Anzeigeeinheit 11 an den Rechner 1 über eine serielle Schnittstelle 12 angeschlossen. Bei dem erfindungsgemäßen Diagnosesystem werden die Schnittstelle 12 und die Anzeigeeinheit 11 außerdem zur Anzeige von Fehlermeldungen benutzt. Weitere Anzeigeeinheiten 13, 14 sind über serielle Schnittstellen 15, 16 mit der Ein/Ausgabeeinheit 8 verbunden und dienen ebenfalls außer zur Anzeige von betriebsmäßigen Daten zur Anzeige von Fehlermeldungen.A central display unit 11 is connected to the computer 1 via a serial interface 12 to display the data occurring during the operation of the printing press. In the diagnostic system according to the invention, the interface 12 and the display unit 11 are also used to display error messages. Additional display units 13, 14 are connected to the input / output unit 8 via serial interfaces 15, 16 and also serve to display error messages in addition to displaying operational data.

Der Rechner 2 zur Steuerung des Hauptantriebs ist mit einer Steuerkarte 17 für den Hauptantrieb verbunden, an welche über eine Leistungsstufe 18 der Motor 19 des Hauptantriebs angeschlossen ist. Die Steuerkarte 17 weist außerdem eine Verbindung zum Systembus 7 auf, so daß beispielsweise der Rechner 1 den Zustand der Leistungssteuerkarte 17 abfragen kann. Zur Spannungsversorgung der digitalen Steuereinrichtung sind mehrere Netzgeräte vorgesehen, von denen in Fig. 1 lediglich zwei Netzgeräte beispielhaft dargestellt sind. Aus Sicherheitsgründen ist vorgesehen, daß der Rechner 1 und die zentrale Anzeigeeinheit 11 an einem ersten Netzgerät 20 und der Rechner 2, die Ein/Ausgabeeinheit 8 und die weiteren Anzeigeeinheiten 13, 14 an einem zweiten Netzgerät 21 angeschlossen sind.The computer 2 for controlling the main drive is connected to a control card 17 for the main drive, to which the motor 19 of the main drive is connected via a power stage 18. The control card 17 also has a connection to the system bus 7 so that, for example, the computer 1 can query the state of the power control card 17. A plurality of power supply units are provided for the voltage supply of the digital control device, of which only two power supply units are shown as examples in FIG. 1. For security reasons, it is provided that the computer 1 and the central display unit 11 are connected to a first power supply unit 20 and the computer 2, the input / output unit 8 and the further display units 13, 14 are connected to a second power supply unit 21.

Durch die Verwendung einer vom Systembus 7 unabhängigen Verbindung zwischen dem Rechner 1 und der zentralen Anzeigeeinheit 11 und durch die Verwendung eines separaten Netzgerätes 20 für diese Baugruppen ist eine Anzeige auch solcher Fehler möglich, die Datenströme zu einer der Anzeigeeinheiten oder auf dem Systembus verhindern. Für die Mikroprozessoren 3, 4 sind Programme vorgesehen, welche weitgehende Tests und Überwachungen ermöglichen. Unter anderem werden der jeweils andere Mikroprozessor sowie der Kommunikationsspeicher 9 von jedem Mikroprozessor überwacht. Dabei können die Test- und Überwachungsprogramme derart flexibel gestaltet sein, daß in Abhängigkeit von den jeweiligen Testergebnissen mehr oder weniger Tests durchgeführt werden. So kann beispielsweise im Normalbetrieb vorgesehen sein, daß jeder der Mikroprozessoren 3, 4 außer einem Teil der Baugruppen der Steuereinrichtung den anderen Mikroprozessor testet. Fällt der andere Mikroprozessor jedoch aus, so testet der noch arbeitsfähige Mikroprozessor auch die bisher von dem anderen Mikroprozessor getesteten Baugruppen.By using a connection between the computer 1 and the central display unit 11 that is independent of the system bus 7 and by using a separate power supply unit 20 for these modules, it is also possible to display errors that prevent data flows to one of the display units or on the system bus. Programs are provided for the microprocessors 3, 4, which enable extensive tests and monitoring. Among other things, the other microprocessor and the communication memory 9 are monitored by each microprocessor. The test and monitoring programs can be designed so flexibly that more or fewer tests are carried out depending on the respective test results. For example, in normal operation it can be provided that each of the microprocessors 3, 4 tests the other microprocessor except for a part of the modules of the control device. However, if the other microprocessor fails, the still functional microprocessor also tests the modules previously tested by the other microprocessor.

Zweckmäßigerweise werden nach dem Einschalten der Steuereinrichtung bzw. solange die Druckmaschine selbst noch nicht in Betrieb ist im Rahmen einer Initialisierung eingehende Tests der einzelnen Komponenten durchgeführt. Ergänzend werden dann während des Betriebs der Druckmaschine die Betriebsparameter überwacht. Dadurch können auch Fehler erkannt werden, die nur bei laufender Druckmaschine feststellbar sind.After the control device has been switched on, or as long as the printing press itself is not yet in operation, expedient tests of the individual components are carried out as part of an initialization. In addition, the operating parameters are then monitored during the operation of the printing press. As a result, errors can also be identified that can only be detected when the printing press is running.

Durch geeignete Leitungsschleifen oder durch Überwachung von Signalen, die auf den jeweiligen Karten ständig vorhanden sind (beispielsweise Taktsignale), ist eine ständige Prüfung von Steckverbindungen möglich.By means of suitable cable loops or by monitoring signals that are always present on the respective cards (for example clock signals), a permanent check of plug connections is possible.

Das Flußdiagramm gemäß Fig. 2 zeigt wesentliche Teile eines Testprogramms, das nach dem Einschalten der Steuereinrichtung in den Mikroprozessoren 3, 4 abläuft. Nach einem Start bei 31 erfolgt zunächst ein Selbsttest 32, der vom jeweiligen Mikroprozessor durchgeführt wird und den jeweiligen Rechner 1, 2 betrifft. Im Falle eines Fehlers wird eine entsprechende Fehlermeldung bei 33 abgespeichert und bei 34 über die serielle Schnittstelle 12 der zentralen Anzeigeeinheit 11 (Fig. 1) zugeführt.2 shows essential parts of a test program which runs in the microprocessors 3, 4 after the control device has been switched on. After starting at 31, a self-test 32 is carried out, which is carried out by the respective microprocessor and relates to the respective computer 1, 2. In the event of an error, a corresponding error message is stored at 33 and fed to the central display unit 11 (FIG. 1) at 34 via the serial interface 12.

Hat jedoch der Selbsttest keine Fehler ergeben, wird der Kommunikationsspeicher 9 im Programmteil 35 getestet. Dieses erfolgt in an sich bekannter Weise durch Einschreiben und wiederauslesen von Informationen. Im Fehlerfall erfolgen wieder eine Speicherung und eine Anzeige, während bei fehlerfreiem Kommunikationsspeicher 9 ein Test des anderen Mikroprozessors im Programmteil 36 erfolgt.However, if the self-test has not resulted in any errors, the communication memory 9 is tested in the program part 35. This is done in a manner known per se by registering and reading out information again. In the event of an error, storage and display take place again, while if the communication memory 9 is free of errors, the other microprocessor is tested in program part 36.

Bei dem dargestellten Ausführungsbeispiel wird davon ausgegangen, daß es im allgemeinen genügt, den jeweils anderen Mikroprozessor zu testen und nicht den gesamten anderen Rechner, da dieser bereits zuvor durch den anderen Mikroprozessor getestet wurde.In the illustrated embodiment, it is assumed that it is generally sufficient to test the other microprocessor in each case and not the entire other computer, since this has already been tested by the other Microprocessor has been tested.

Nach einem erfolgreichen Verlauf des Tests des anderen Mikroprozessors werden bei 37 die Tests der weiteren Baugruppen vorgenommen. Sind auch diese fehlerfrei, so wird bei 38 das Testprogramm beendet, wonach Programme zur Steuerung der Druckmaschine aktiviert werden. Dieses kann an sich auch nach den Programmteilen Speichern 33 und Anzeigen 34 erfolgen, wenn zuvor keine Fehler festgestellt wurden, welche einen ordnungsgemäßen Betrieb der Druckmaschine verhindern.After the test of the other microprocessor has been successfully completed, the tests of the further assemblies are carried out at 37. If these are also error-free, the test program is ended at 38, after which programs for activating the printing press are activated. This can also be done in accordance with the program parts store 33 and display 34 if no errors have been found beforehand which prevent proper operation of the printing press.

Claims (13)

  1. Device for monitoring an electronic control device for a printing machine having modules (1, 2) connected by means of a bus system (7), at least one memory (5, 6), at least one input and output unit (8), and at least one display device (11, 13, 14), characterized
    - in that it has at least two modules (1, 2), one module (1) serving for the central control of the printing machine and another module (2) serving to control the main drive (17, 18, 19),
    - in that the modules (1, 2) have at least one processor (3, 4) in each case and a non-volatile memory (5, 6) in each case,
    - in that the modules (1, 2) have at least one separate interface (12) connected to a central display unit (11),
    - and in that each module (1, 2) has a separate power supply unit (20, 21).
  2. Device according to Claim 1, characterized in that each processor (3, 4) is arranged on a separate system card, and in that the processors (3, 4) are connected independently of one another to at least one display means (11, 13, 14) in each case.
  3. Device according to at least one of Claims 1 or 2, characterized in that the system cards with the respective associated display devices (11, 13, 14) are connected to different voltage supply devices (20, 21).
  4. Device according to at least one of the preceding claims, characterized in that the device for indicating error states has the display means (11, 13, 14) indicating the normal sequence.
  5. Method for monitoring an electronic control device of a printing machine according to at least one of Claims 1 to 4, characterized in that first of all a self-testing of the processors (3, 4) is carried out after switching on, in that after that a read/write memory (9) serving for communication between the processors is successively tested by one of the processors (3, 4) in each case, and in that a testing of the processors (3, 4) among one another is carried out after the read/write memory (9) has been tested.
  6. Method according to Claim 5, characterized in that dynamic test runs are executed during operation of the printing machine.
  7. Method according to at least one of Claims 5 or 6, characterized in that if a processor (3, 4) fails, the tests, analyses and displays normally to be carried out by the failed processor (3, 4) are carried out by the processor (4, 3) that has not failed.
  8. Method according to at least of one of Claims 5, 6 or 7, characterized in that the test results are stored in non-volatile memories (5, 6) on the system cards to which the test results relate in each case.
  9. Method according to at least one of Claims 5 to 8, characterized in that error messages and/or test results are stored in a non-volatile memory, the latter additionally serving for the communication between the processors (3, 4).
  10. Method according to at least one of Claims 5 to 9, characterized in that the error messages are stored in a non-volatile memory and if a further error message occurs, the error message(s) that previously occurred is (are) moved on one position in a non-volatile memory (5, 6).
  11. Method according to at least one of Claims 5 to 10, characterized in that the oldest error message from the non-volatile memory (5, 6) is transferred into an additional memory and is stored together with even older error messages.
  12. Method according to at least one of Claims 5 to 11, characterized in that operating parameters are stored in non-volatile memory before and during the occurrence of errors.
  13. Method according to one of preceding Claims 5 to 12, characterized in that operating parameters present during operation are continuously written into a non-volatile memory, in that operating parameters that have aged more than a predetermined time are lost, and in that the state of the non-volatile memory is retained if an error occurs.
EP90122511A 1990-01-08 1990-11-26 Diagnostic system for digitally controlled devices Expired - Lifetime EP0436818B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4000295 1990-01-08
DE4000295A DE4000295C2 (en) 1990-01-08 1990-01-08 Device for diagnosing a control system of a printing press
SG147394A SG147394G (en) 1990-01-08 1994-10-11 Diagnostic system for digitally controlled devices

Publications (3)

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EP0436818A2 EP0436818A2 (en) 1991-07-17
EP0436818A3 EP0436818A3 (en) 1991-09-04
EP0436818B1 true EP0436818B1 (en) 1994-05-18

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EP90122511A Expired - Lifetime EP0436818B1 (en) 1990-01-08 1990-11-26 Diagnostic system for digitally controlled devices

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EP (1) EP0436818B1 (en)
JP (1) JP2614674B2 (en)
CN (1) CN1021420C (en)
AT (1) ATE105780T1 (en)
AU (1) AU651800B2 (en)
DE (2) DE4000295C2 (en)
HK (1) HK21395A (en)
SG (1) SG147394G (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0728581A2 (en) * 1995-02-23 1996-08-28 MAN Roland Druckmaschinen AG Bus system for a printing machine
WO1999056187A1 (en) * 1998-04-23 1999-11-04 Dr. Johannes Heidenhain Gmbh Method and arrangement for selecting safety parameters to be monitored
US6050192A (en) * 1993-06-25 2000-04-18 Heidelberger Druckmaschinen Ag Process and arrangement for controlling or regulating operations carried out by a printing machine

Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
EP0763428A1 (en) * 1995-09-13 1997-03-19 Rockwell International Corporation Diagnostic device for a printing press
DE29800480U1 (en) * 1998-01-14 1998-03-05 Roland Man Druckmasch Control system for a printing press
ATE216953T1 (en) * 1998-07-18 2002-05-15 Roland Man Druckmasch MAINTENANCE AND INSPECTION SYSTEM FOR A PRINTING MACHINE
DE19908230A1 (en) * 1999-02-25 2000-08-31 Heidelberger Druckmasch Ag Device for monitoring safety-related processes on machines
DE10117713B4 (en) 2000-04-25 2017-05-24 Heidelberger Druckmaschinen Ag Printing machine with controlled adjustment control
DE102004001819A1 (en) * 2004-01-07 2005-08-04 Siemens Ag Redundant computer configuration
DE102005001417B4 (en) * 2004-01-29 2009-06-25 Heidelberger Druckmaschinen Ag Projection screen-dependent display / operating device
CN110058581B (en) * 2019-04-15 2023-11-14 锡林郭勒职业学院 Digital electric soft fault diagnosis device and application method thereof

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GB2024457B (en) * 1978-06-07 1983-01-06 Harris Corp Printing press ready and control system
DE3220622A1 (en) * 1982-06-01 1983-12-15 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach DATA INPUT DEVICE ON PRINTING MACHINES
JPS59146855A (en) * 1983-02-10 1984-08-22 Toshiba Mach Co Ltd Central control system in printing machine
DD217915A1 (en) * 1983-08-19 1985-01-23 Komb Polygraph W Lamberz Leipz MONITORING DEVICE FOR HARDWARE REDUDANCE IN CONTROL AND CONTROL DEVICES A POLYGRAPHIC MACHINERY
EP0160167A1 (en) * 1984-02-21 1985-11-06 Didde Graphic Systems Corporation Method and apparatus for distributed electronic control of a printing press
DE3708925C2 (en) * 1986-04-30 1995-08-31 Heidelberger Druckmasch Ag Device for controlling or regulating operations on a rotary offset sheet-fed printing press
DE3642500A1 (en) * 1986-12-12 1988-06-23 Heidelberger Druckmasch Ag SYSTEM FOR INPUT AND / OR OUTPUT OF SIGNALS FROM A DIGITAL CONTROL SYSTEM
DE3744200A1 (en) * 1987-12-24 1989-07-13 Heidelberger Druckmasch Ag DEVICE, METHOD FOR BACKING UP DATA

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6050192A (en) * 1993-06-25 2000-04-18 Heidelberger Druckmaschinen Ag Process and arrangement for controlling or regulating operations carried out by a printing machine
US6119594A (en) * 1993-06-25 2000-09-19 Heidelberger Druckmaschinen Aktiengesellschaft Method for regulating inking during printing operations of a printing press
EP0728581A2 (en) * 1995-02-23 1996-08-28 MAN Roland Druckmaschinen AG Bus system for a printing machine
WO1999056187A1 (en) * 1998-04-23 1999-11-04 Dr. Johannes Heidenhain Gmbh Method and arrangement for selecting safety parameters to be monitored
US6445965B1 (en) 1998-04-23 2002-09-03 Johannes Heidenhain Gmbh Method and arrangement for selecting safety parameters to be monitored

Also Published As

Publication number Publication date
HK21395A (en) 1995-02-24
AU651800B2 (en) 1994-08-04
ATE105780T1 (en) 1994-06-15
AU6859591A (en) 1991-07-11
EP0436818A2 (en) 1991-07-17
DE4000295A1 (en) 1991-07-11
JPH04211944A (en) 1992-08-03
CN1053210A (en) 1991-07-24
EP0436818A3 (en) 1991-09-04
DE4000295C2 (en) 1994-05-19
SG147394G (en) 1995-03-17
JP2614674B2 (en) 1997-05-28
CN1021420C (en) 1993-06-30
DE59005744D1 (en) 1994-06-23

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