EP0370223B1 - Dezentraler Steuerrechner, insbesondere innerhalb einer Rotationsdruckmaschine, der über einen Bus mit mehreren peripheren Einheiten verbunden ist - Google Patents

Dezentraler Steuerrechner, insbesondere innerhalb einer Rotationsdruckmaschine, der über einen Bus mit mehreren peripheren Einheiten verbunden ist Download PDF

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Publication number
EP0370223B1
EP0370223B1 EP89119106A EP89119106A EP0370223B1 EP 0370223 B1 EP0370223 B1 EP 0370223B1 EP 89119106 A EP89119106 A EP 89119106A EP 89119106 A EP89119106 A EP 89119106A EP 0370223 B1 EP0370223 B1 EP 0370223B1
Authority
EP
European Patent Office
Prior art keywords
bus
digital
analog
signals
control unit
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.)
Expired - Lifetime
Application number
EP89119106A
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German (de)
English (en)
French (fr)
Other versions
EP0370223A3 (de
EP0370223A2 (de
Inventor
Christian Schlegel
Claus Walter
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT89119106T priority Critical patent/ATE100761T1/de
Publication of EP0370223A2 publication Critical patent/EP0370223A2/de
Publication of EP0370223A3 publication Critical patent/EP0370223A3/de
Application granted granted Critical
Publication of EP0370223B1 publication Critical patent/EP0370223B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0009—Central control units

Definitions

  • the invention relates to a control computer according to the preamble of claim 1.
  • decentralized control computers are used in printing presses, preferably in rotary printing presses, with the aid of which setting processes and measuring processes are carried out at various points within a part of the printing press.
  • these stations to be operated by the control computer are a few meters away from the control computer.
  • the number of peripheral stations to be operated by the control computer is also often very high, for example between 20 and 54 color sliders in the individual inking units of the printing units, which are adjusted by a motor and the position of which is recorded electronically.
  • Measuring and adjusting or regulating processes should also often be carried out at high speed, for example in order to achieve a control accuracy of a few parts per thousand in the setting of the color slide.
  • the object of the present invention is to develop a device according to the preamble of claim 1 in such a way that, with a simple line design of the bus system, a precise measurement of the analog values in the peripheral units is possible via the control computer and, in particular, the most trouble-free, i.e. undistorted transmission of the analog signals to the control computer can take place.
  • a large number of peripheral units or stations can be addressed and transmitted to these control commands, for example for changing servomotors on color slides, and the analog signals recorded in the peripheral unit can be fed to the control unit with high precision and evaluated therein.
  • actuators etc. as well as devices recording measured values are controlled via the mixed digital-analog bus according to the invention.
  • Addresses and data or control commands are transmitted in digital form via the digital part of the bus and actual values, which are to be recorded in the peripheral units and evaluated in the control computer, are transmitted via the analog part of the data bus.
  • the address recognition and the processing of the control commands each take place in the peripheral unit.
  • the control computer 1 indicated in FIG. 1 is preferably used in a printing press, for example in a web-fed printing press or in a sheet-fed printing press.
  • a printing press for example, a web-fed printing press or in a sheet-fed printing press.
  • the ink slides used in the various printing units on inking units are monitored in their position relative to an ink fountain roller and adjusted or regulated at certain predetermined intervals.
  • the peripheral units 2 shown in the drawings are suitable for such an application.
  • a bus 3 is provided between the control computer 1 and the peripheral units 2, which in the embodiment according to the invention is designed in the form of a ribbon cable.
  • a bus is generally understood to mean a number of lines that lead to more than two stations from a central station and each station has targeted access to the individual lines of the bus, that is to say is usually addressable.
  • the bus 3 according to the invention comprises an address part 4, a data or control part 5, an analog part 6 and a supply part 7.
  • the address part 4 and the data part or control part 5 are designated as digital part 9 and the analog part 6 generally with 10.
  • the individual lines (FIG. 3) of the bus 3 are each connected to a peripheral unit 2 via a plug connection 11, specifically via a stub line or via a connecting part 12. It is advantageous to design the plug connection 11 in the context of the invention as a so-called “struck plug connection", as indicated in FIG. 1.
  • the bus is shown broken off at 13, but can be of any length, so to speak.
  • the addresses in the form of digital signals are transmitted to all peripheral units simultaneously via latched digital bus drivers 15.
  • the digital information forming the addresses is therefore transmitted from the peripheral units 2 to the control computer 1 for the purpose of transmitting analog signals via the analog part 6 of the bus 3 latched, ie kept unchanged in voltage potential on the line.
  • the digital voltage signals settle on the bus after a certain time, depending on the length and other physical properties of the line, so that quasi-steady-state voltage states then arise during the transmission of the analog signals.
  • At least one line 4 is required for the transmission of data from the control computer 1 to the peripheral unit 2, as can be seen from FIG. 3.
  • several address lines and possibly data lines are used, for example four lines, in order, for example, to be able to transmit four address bits simultaneously.
  • analog signals are transmitted differentially, i.e. there are always two lines 27, 28, as indicated at 29, used for the transmission of voltage values taken at the potentiometer 22 and fed to a differential amplifier 26 in the control computer 1, which The analog signal to be measured is determined as the difference between the two voltage values and this difference is fed to an analog-digital converter.
  • the then digitized signals can then be evaluated in the control computer 1, which can possibly lead to a readjustment of an actuating device, for example a color slide actuator in a peripheral unit. This adjustment would then be carried out by means of digital address or control data via the address part 4 or data part 5. For each peripheral unit 2, an individual reference point is obtained for the measurement, which reduces errors due to voltage drops and interference radiation.
  • the voltage supply in the peripheral units 2, for example the potentiometer 22, takes place from the control computer 1 via two analog reference lines 30 and 31, the lines 30 and 31 in the peripheral unit 2 and in the control computer 1 are buffered and decoupled by the circuits 25, 32, 33.
  • Line 30 carries a positive reference signal coming from the output of the analog-digital converter 16 and line 31 carries a 0 volt reference signal. This enables a high degree of reducibility of the measurement, because deviations in the reference voltage are not included in the measurement.
  • All lines, i.e. 27, 28, 30, 31 of the analog bus 6 are terminated with high impedance by buffers 32, 33 in the peripheral unit 2 or by the differential amplifier 26 in the control computer 1.
  • the analog part 6 is thus surrounded on both sides by lines with a stable voltage potential, on the one hand through the power supply line 7 and on the other hand from the digital part 4 or 5, which, as described above, during the measurement and transmission of analog information or signals is kept stable.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Bus Control (AREA)
  • Control By Computers (AREA)
  • Control Of Multiple Motors (AREA)
EP89119106A 1988-11-21 1989-10-14 Dezentraler Steuerrechner, insbesondere innerhalb einer Rotationsdruckmaschine, der über einen Bus mit mehreren peripheren Einheiten verbunden ist Expired - Lifetime EP0370223B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89119106T ATE100761T1 (de) 1988-11-21 1989-10-14 Dezentraler steuerrechner, insbesondere innerhalb einer rotationsdruckmaschine, der ueber einen bus mit mehreren peripheren einheiten verbunden ist.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3839248A DE3839248A1 (de) 1988-11-21 1988-11-21 Dezentraler steuerrechner, insbesondere innerhalb einer rotationsdruckmaschine, der ueber einen bus mit mehreren peripheren einheiten verbunden ist
DE3839248 1988-11-21

Publications (3)

Publication Number Publication Date
EP0370223A2 EP0370223A2 (de) 1990-05-30
EP0370223A3 EP0370223A3 (de) 1991-03-27
EP0370223B1 true EP0370223B1 (de) 1994-01-26

Family

ID=6367546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89119106A Expired - Lifetime EP0370223B1 (de) 1988-11-21 1989-10-14 Dezentraler Steuerrechner, insbesondere innerhalb einer Rotationsdruckmaschine, der über einen Bus mit mehreren peripheren Einheiten verbunden ist

Country Status (6)

Country Link
US (1) US5101474A (es)
EP (1) EP0370223B1 (es)
JP (1) JPH0772841B2 (es)
AT (1) ATE100761T1 (es)
DE (2) DE3839248A1 (es)
ES (1) ES2048809T3 (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004022234B4 (de) * 2004-05-04 2015-08-20 manroland sheetfed GmbH Druckmaschine mit Gleichspannungszwischenkreisen
DE10330579C5 (de) * 2002-07-19 2016-12-22 Heidelberger Druckmaschinen Ag Vorrichtung zum Regeln der Weite des Farbspaltes bei einer Druckmaschine

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4237837A1 (es) * 1991-11-21 1993-06-03 Koenig & Bauer Ag
JP2790393B2 (ja) * 1992-03-18 1998-08-27 沖電気工業株式会社 ノイズ低減回路
DE4214394C2 (de) * 1992-04-30 1998-08-20 Asea Brown Boveri Antriebsvorrichtung für eine längswellenlose Rotationsdruckmaschine
DE4328026A1 (de) * 1993-08-20 1995-03-09 Roland Man Druckmasch Kommunikationsverfahren und -system zum computerunterstützten Drucken
CA2123245A1 (en) 1993-09-29 1995-03-30 Alan F. Barney System for controlling printing press and accessories and auxiliaries therefor
DE4340947C1 (de) * 1993-12-01 1994-12-22 Roland Man Druckmasch Motorsteuerung, insbesondere innerhalb einer Druckmaschine
DE4342052C2 (de) * 1993-12-09 1996-07-11 Roland Man Druckmasch Steuerrechner, der über einen Adressbus mit mehreren peripheren Einheiten verbunden ist
DE19506261A1 (de) * 1995-02-23 1996-09-05 Roland Man Druckmasch Bussystem für eine Druckmaschine
DE19520918C2 (de) * 1995-06-08 1998-02-26 Roland Man Druckmasch Steuerung für eine Druckmaschine
DE19520919C2 (de) * 1995-06-08 1998-02-26 Roland Man Druckmasch Steuerung für eine Druckmaschine
DE19613289C1 (de) * 1996-04-03 1997-10-09 Roland Man Druckmasch Verfahren und Vorrichtung zur Übertragung von Daten innerhalb einer Druckmaschine
US6728947B1 (en) 1998-06-05 2004-04-27 R. R. Donnelley & Sons Company Workflow distributing apparatus and method
DE20000919U1 (de) * 2000-01-20 2000-03-09 MAN Roland Druckmaschinen AG, 63075 Offenbach Überwachungseinrichtung für eine Druckmaschine
DE10226482A1 (de) * 2002-06-14 2003-12-24 Koenig & Bauer Ag Messpotentiometer zur Positionierung von Stellelementen an Druckmaschinen

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JPS51148339A (en) * 1975-06-16 1976-12-20 Toshiba Corp Computer control unit
JPS5856234B2 (ja) * 1976-07-23 1983-12-14 日本航空電子工業株式会社 リボンケ−ブルとコネクタを接続する方法
JPS5426632A (en) * 1977-07-29 1979-02-28 Fujitsu Ltd Prevention system of malfunction due to noise
US4146750A (en) * 1977-12-29 1979-03-27 Honeywell Inc. Analog multiplexer control circuit
JPS56114037A (en) * 1980-02-14 1981-09-08 Toshiba Corp Analog input device
JPS603743B2 (ja) * 1980-07-05 1985-01-30 モレックス・インコ−ポレ−テッド リボンケ−ブル用電気コネクタ−
DE3121558A1 (de) * 1981-05-30 1982-12-16 Metrawatt GmbH, 8500 Nürnberg Verfahren und vorrichtung zum umwandeln von digitalen signalen in analoge ausgangsgroessen, die mehreren ausgangskanaelen zugeordnet sind
DE3148947A1 (de) * 1981-12-10 1983-06-23 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Vorrichtung zur steuerung einer vielzahl von stellmotoren an druckmaschinen
DD210878B1 (de) * 1982-06-03 1990-04-25 Foerster Karl Heinz Steuerung fuer farbzonenfernverstellung
US4499549A (en) * 1982-06-25 1985-02-12 Automation Systems, Inc. Digital computer having analog signal circuitry
JPS5923648A (ja) * 1982-07-30 1984-02-07 Nec Corp テレメ−タシステムにおけるデ−タコレクシヨン方式
US4517637A (en) * 1983-04-21 1985-05-14 Inconix Corporation Distributed measurement and control system for industrial processes
EP0160167A1 (en) * 1984-02-21 1985-11-06 Didde Graphic Systems Corporation Method and apparatus for distributed electronic control of a printing press
JPS60177588A (ja) * 1984-02-22 1985-09-11 大宏電機株式会社 リボンケ−ブルの分線方法及びその装置
KR890005362B1 (ko) * 1984-03-19 1989-12-23 더 뱁콕 앤드 윌콕스 컴퍼니 전기 커넥터 블럭
JPS6299653A (ja) * 1985-10-24 1987-05-09 Mazda Motor Corp エンジンの空燃比制御装置
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DE3708925C2 (de) * 1986-04-30 1995-08-31 Heidelberger Druckmasch Ag Einrichtung zur Steuerung oder Regelung von Betriebsvorgängen an einer Rotations-Offset-Bogendruckmaschine
JPS6358471A (ja) * 1986-08-29 1988-03-14 Toshiba Corp 現像剤濃度検出装置
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Non-Patent Citations (1)

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Elektronik Informationen, Nr. 11-1987, Seiten 58-61 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10330579C5 (de) * 2002-07-19 2016-12-22 Heidelberger Druckmaschinen Ag Vorrichtung zum Regeln der Weite des Farbspaltes bei einer Druckmaschine
DE102004022234B4 (de) * 2004-05-04 2015-08-20 manroland sheetfed GmbH Druckmaschine mit Gleichspannungszwischenkreisen

Also Published As

Publication number Publication date
DE58906821D1 (de) 1994-03-10
ES2048809T3 (es) 1994-04-01
EP0370223A3 (de) 1991-03-27
JPH0772841B2 (ja) 1995-08-02
US5101474A (en) 1992-03-31
JPH02188802A (ja) 1990-07-24
DE3839248A1 (de) 1990-05-23
DE3839248C2 (es) 1992-12-10
EP0370223A2 (de) 1990-05-30
ATE100761T1 (de) 1994-02-15

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