EP2494534A1 - Système de communication de sécurité pour signaler des états du système - Google Patents

Système de communication de sécurité pour signaler des états du système

Info

Publication number
EP2494534A1
EP2494534A1 EP10784684A EP10784684A EP2494534A1 EP 2494534 A1 EP2494534 A1 EP 2494534A1 EP 10784684 A EP10784684 A EP 10784684A EP 10784684 A EP10784684 A EP 10784684A EP 2494534 A1 EP2494534 A1 EP 2494534A1
Authority
EP
European Patent Office
Prior art keywords
signal
evaluation unit
pulse
communication system
predetermined signal
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.)
Granted
Application number
EP10784684A
Other languages
German (de)
English (en)
Other versions
EP2494534B1 (fr
Inventor
Jürgen TEUTENBERG
Simon Davis
Thomas Hüttemeier
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.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact GmbH and Co KG
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 Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP2494534A1 publication Critical patent/EP2494534A1/fr
Application granted granted Critical
Publication of EP2494534B1 publication Critical patent/EP2494534B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
    • G08B26/005—Alarm systems in which substations are interrogated in succession by a central station with substations connected in series, e.g. cascade

Definitions

  • the present invention relates to a security communication system with an evaluation unit and a number of connected in series participants, each with a sensor and a method for signaling system states.
  • Automation systems it is also necessary to provide multiple sensors, such as emergency stop button, temperature sensors, pressure sensors, treadmills, photoelectric sensors and the like, for optimum accessibility in
  • a critical system state e.g. an emergency signal
  • the present invention proposes a security communication system for providing a security function, which is an evaluation unit comprises, to which a number of subscribers connected in series is connected.
  • the evaluation unit has a signal output, a
  • Signal input a ground terminal and means for providing a predetermined signal for the participants.
  • the subscribers each have a signal input, a signal output, a ground connection for
  • the evaluation unit is for evaluating the modulated predetermined signal and for controlling a
  • the sensor may be, for example, a
  • the output signal of a sensor indicates a critical or a non-critical system state.
  • a critical system condition causes the
  • Evaluation unit triggers a safety function.
  • the predetermined signal is modulated by the subscribers such that the evaluation unit in response to the modulated predetermined signal or which can locate those subscribers who have signaled a critical system condition.
  • the transistor is arranged between the signal input to the signal output of the respective subscriber and adapted to be applied to the signal input
  • the electronic circuit can furthermore be designed to supply a supply voltage for the subscriber directly from the signal input (21, 31, 41)
  • the electronic circuit expediently comprises a second transistor with which the signal input can be switched to the reference potential.
  • the logic block of the electronic circuit is
  • Subscriber assigned sensor is provided; f) repeating steps d) and e) depending on the number of subscribers in the security
  • the predetermined signal contains a signal pulse whose pulse length depends on the number of subscribers connected in series.
  • steps c) and e) provide for this that each participant modulates the signal pulse of the predetermined signal as a function of the system state of its sensor.
  • each subscriber preferably modulates the signal pulse of the predetermined signal according to their position in the security communication system.
  • the signal pulse Subscribers the signal pulse at its assigned point within the signal pulse and / or preferably with an individual modulation signal. So that the participants secure the predetermined signal
  • the signal pulse may include an end pulse followed by a second pause which is longer in time than the first pause.
  • the steps a) to h) are cyclic or at predetermined times
  • Evaluation unit can be transmitted.
  • a configuration phase is run through, in which the
  • Evaluation unit determines the number of participants within the security communication system and in which the participants determine their position within the security communication system.
  • the security communi cation system according to the invention is distinguished from known security systems by a localizability of all in the security communi cation system participants who signal a critical system state.
  • the shape and the frequency of the predetermined signal have sufficient robustness against interference, so that safety communication systems with
  • 1 an emergency stop circuit with three emergency units and an evaluation unit
  • 2 is a schematic circuit diagram of an emergency unit with a coupled to an electronic circuit emergency stop switch
  • Fig. 3 is a signal-time diagram of the emergency stop circuit
  • Fig. 5 is a signal timing diagram of the emergency stop circuit at two of three activated.
  • the security communication system 1 shown by way of example in FIG. 1 may be an emergency shutdown circuit which has an evaluation unit 10 and, for example, three subscribers 20, 30 and 40 connected in series, for example distributed in a field on a wide area
  • the evaluation unit 10 has a signal output 11 and a signal input 12, at which the three
  • Emergency units 20, 30 and 40 are connected in series.
  • the emergency units are each one above each other
  • the evaluation unit 10 may have not shown further signal outputs and signal inputs to which further Notausticianen not shown in each case are connected in series, the additional parallel
  • the evaluation unit 10 generates a predetermined signal UA (see Fig. 4), the
  • This signal UA can essentially be embodied as a binary voltage signal which is varied between a high and a low level, wherein the low level preferably corresponds to the reference potential GND at a ground terminal 15 of the evaluation unit 10.
  • the voltage signal UA is used to transmit
  • the circuits 24, 34, 44 of the Notausticianen 20, 30, 40 of the emergency stop circuit 1 are constructed identically, so that in Figure 2, only the diagram of the emergency unit 20 is exemplified.
  • the circuit diagram represents
  • the circuit 24 comprises a signal input 21, a signal output 22 and a logic module 210, the
  • a microcontroller preferably by a microcontroller or alternatively by an FPGA, CPLD or an ASIC can be realized.
  • the emergency stop switch 23 is two-channel at the logic module 210 via ports P8 and P9 and ports Pll and P12
  • NC / NO pair can be used for the emergency unit.
  • the appropriately used switch type must only by software or hardware means on the
  • Logic block 210 can be set.
  • other sensor types such as running mats, temperature and pressure sensors, light barriers, protective grids, etc., can also be connected to an emergency stop unit.
  • several sensors can be connected via an emergency stop unit via different ports of the logic module 210.
  • the circuit 24 includes a transistor 220 and, optionally, a transistor 260 connected to its respective one
  • the transistor 220 is between the signal input 21 and the Signal output 22 is connected, while the transistor 260 is connected between the signal input 21 and the ground terminal 25. Alternatively, the second transistor 260 could also be connected between the signal output 22 and the ground connection 25.
  • the logic module 210 controls the
  • Transistors 220 and 260 such that the am
  • Signal input 21 applied voltage signal UA which is the predetermined signal, can be modulated by the transistor 220 and output to the signal output 22.
  • the voltage signal UA at the input 21 can be pulled to the reference potential of the ground terminal 25, whereby all participants of the
  • the electronic circuit 24 further has a diode 231 and a capacitor 232 connected between the signal input 21 and the ground terminal 25 with the
  • Reference potential GND are connected in series and provide a power supply 233 a power supply for the logic device 210.
  • the supply device 233 may be designed as a switched-mode power supply or as a voltage regulator.
  • a constant supply voltage of e.g. 3.3 V or 5 V are obtained for the logic device, so preferably no additional
  • Line for an auxiliary power of emergency units 20, 30, 40 is required in an emergency stop circuit.
  • the power supply does not take place in this case via the signal lines, so that the diode 231 and the capacitor 232 can be omitted in favor of an additional connection.
  • the emergency stop circuit 1 is exemplary three emergency units.
  • Notaustician suitable distributed along a route of a spatially extended automation system and are connected to each other in series.
  • Emergency shutdown circuit 1 in particular allows easy expandability to additional Notausticianen, for example, between the emergency unit 30 and the
  • Emergency unit 40 can be inserted.
  • the emergency stop circuit 1 first passes through a configuration phase in which the number of connected Notausticianen 20, 30, 40 by the
  • Evaluation unit 10 is determined and determine the Notausticianen their position in the series circuit.
  • the transistor 220 of a respective emergency unit is initially disabled, so that the configuration signals shown in FIG.
  • FIG. 3 shows the voltage curves of the configuration signals UAk, UBk, UCk and UDk generated during the configuration phase, which are respectively connected to the signal inputs 21, 31, 41 of the emergency shutdown unit 20, 30 and 40 and to the
  • the configuration signal UAk is generated by the evaluation unit and transmitted via the signal output 11 to the input 21 of the first emergency stop unit 20.
  • the configuration signal UAk is e.g. through a
  • a first energy pulse 311 is initially applied to the signal output 11, which remains present for a duration of three clock cycles Tb and essentially to the
  • the signal UAk is reset for one clock, so that a signal pause 312 follows the energy pulse 311. Following is a
  • Signal pulse 313 sent over the duration of a clock, followed by a second pause 314 of two clocks.
  • Voltage signal UAk is between the input 21 and the Ground connection 25. It provides a charging current over the duration of the three clocks, which flows in the flow direction through the diode 231. The capacitor 232 is charged during this time and thus, in particular in the signal pauses the supply voltage for the
  • the microcontroller of the emergency unit 20 thus starts operating and recognizes via a
  • the emergency unit 20 registers itself as the first participant in the series circuit of
  • the evaluation unit 10 initially detects no input voltage at its own signal input 12 and concludes that at least one emergency shutdown unit is connected in the emergency shutdown circuit.
  • the evaluation unit 10 outputs a second energy pulse 321 via the signal output 11, which is followed, after a break 322, by a second signal pulse 323, which is three clocks wide.
  • the first emergency stop unit 20 receives at its signal input 21 the energy pulse 321 and the signal pulse 323 of the signal UAk and outputs these pulses through the now open transistor 220 to the signal output 22 as a second signal UBk, wherein the second signal UBk by the Notaustician 20 such
  • the second signal UBk contains thus a high level 3231, a low level 3232 and a second high level 3233.
  • the second emergency stop unit 30 thus receives at its signal input 31, the voltage signal UBk, the
  • the voltage signal UBk thus corresponds to the modulated signal UAk, which has been generated by the evaluation unit 10.
  • the emergency unit 30 is now activated by the energy pulse 321 and recognizes itself as a second party, i. as a second emergency stop unit 30 in the emergency stop circuit.
  • the evaluation unit 10 still recognizes no
  • Input signal at its signal input 12 and outputs a third energy pulse 331 via the signal output 11, followed by a signal pause 332 and a third signal pulse 333.
  • the third signal pulse 333 is widened compared to the previous cycle second signal pulse 323 by a further two clocks, and thus includes
  • the emergency disengaging units 20 and 30 respectively output a modulated signal UBk and UCk (see FIG. 3) via their respective signal output 22, 32.
  • the first emergency stop unit 20 modulates the signal UAk such that the signal pulse 333 is hidden during a clock Tb.
  • the second signal UBk thus contains a high level and a low level of the length Tb and a second high level 333 'of three times the length of Tb.
  • the second emergency stop unit 30 receives the signal UBk and modulates its signal pulse 333 'such that the signal pulse 333' is hidden during a clock Tb.
  • the signal UCk thus contains a high level 3333, a low level 3334 and a second high level 3335 each of the clock length Tb.
  • the third emergency stop unit 40 receives the signal UCk and recognizes itself as the third emergency stop unit 40 in FIG.
  • the evaluation unit 10 sends in its signal UAk a further energy pulse 341 and a fourth signal pulse 343, which compared to the third signal pulse 331
  • each emergency unit modulates the signal UAk in such a way, for example, that each emergency unit outputs a low level of the length Tb in the
  • Signal pulse 343 inserts, d. H. that in each case a clock within the signal pulse 343 is hidden.
  • the signals UBk, UCk and UDk correspondingly modulated by the emergency cutouts 20, 30 and 40 are shown in FIG.
  • the signal UDk is output, which contains the energy pulse 341 as well as the signal pulse 343 modulated by all three emergency cutouts, which contains four high levels 3431, 3433, 3435 and 3437, each by a low level from each other are separated.
  • the evaluation unit 10 now receives at its
  • the configuration phase can also be repeated several times until stable communication is established.
  • the time profiles of the differential voltages (UAk-UBk), (UBk-UCk) and (UCk-UDk) shown in FIG. 3 show in which time intervals the capacitors 323 of the emergency cutouts 20, 30 and 40 are charged.
  • the emergency units whose respective position are set manually in a subscriber chain, which are coded for example by DIP switches or stored in a non-volatile memory.
  • the number of existing Notausticianen can be set or stored on or in the evaluation unit 10.
  • Initialization phase during which the participants are supplied with energy at the same time. For this purpose, for example, a long energy pulse is provided.
  • FIG. 4 illustrates the normal operation of the
  • the evaluation unit 10 After the completion of the configuration phase, the evaluation unit 10 generates an exemplary, cyclical,
  • the predetermined signal UA which is output via the signal output 11 to the first emergency stop unit 20.
  • the temporal signal course of the signal UA is shown in FIG. 4 above.
  • the signal UA contains in each cycle a start pulse 410 having the width of a clock Tb, followed by a pause or low level 420 of length Tb.
  • the pause 420 is followed by a signal pulse 430 whose length depends on the number of emergency cutouts present in the emergency stop circuit.
  • the signal pulse 430 contains in each case two clocks Tb for each emergency stop unit connected to the emergency stop circuit 1 and an additional end pulse 437 of length Tb.
  • the emergency stop unit 20 receives the above-described signal UA at the signal input 21 in each cycle and modulates the signal pulse 430, for example, such that during predetermined clocks the signal pulse 430 is hidden.
  • the signal pulse 430 is modulated by means of the transistor 70 in such a way that the signal pulse 430 starts with a high level 431 of length Tb, followed by a low level 432, that is to say a hidden section, of length Tb.
  • the remainder of the signal pulse 430, labeled 430 'in FIG. 4 is not modulated.
  • the modulated signal UA is now transmitted as a signal UB to the emergency stop unit 30.
  • the emergency stop unit 30 thus receives the start pulse 410, the pause 420 and the
  • the emergency unit 30 modulates only the
  • Signal pulse 430 'of the received signal UB in a similar manner as the emergency unit 20.
  • the signal pulse 430' is modulated such that it starts with a high level of length Tb, which is a low level or hidden portion of the Length Tb connects.
  • the remainder of the signal pulse 430 ', labeled 430 "in FIG. 4, is not modulated.
  • the modulated signal UB is now transmitted as a signal UC to the emergency unit 40.
  • the emergency stop unit 40 thus receives the start pulse 410, the pause 420 and the signal pulse modulated by the upstream emergency units 20 and 30.
  • the emergency stop unit 40 thus receives the start pulse 410, the pause 420 and the signal pulse modulated by the upstream emergency units 20 and 30.
  • Example, the emergency unit 40 modulates only the
  • Signal pulse 430 '' of the received signal UC in a similar manner as the emergency units 20 and 30.
  • the signal pulse 430 '' is modulated such that it starts with a high level of length Tb, which is a low level or Hidden section of length Tb connects.
  • Tb high level of length
  • Tb hidden section of length
  • the modulated signal UC is now used as the signal UD to the evaluation unit 10th transfer.
  • the signal pulse 430 initially generated by the evaluation unit 10 now comprises three high levels 431, 433 and 435 corresponding to the number of emergency units present as well as the end pulse 437, each by a
  • the evaluation unit 10 recognizes from the received signal DU that no emergency stop switch has been actuated.
  • the difference signals (UA-UB), (UB-UC) and (UC-UD) show at which time intervals the capacitors 90 of the emergency cut-off units 20, 30 and 40 are recharged. To recharge the power supply is the respectively
  • FIG. 5 shows the signal-time diagrams for the case in which the first and third emergency shutdown units 20 and 40 are connected to the
  • Time t3 report an actuated emergency stop, while the second emergency stop unit 30 of the series circuit does not send an emergency stop signal.
  • the point in time t3 can be understood as meaning that the evaluation unit 10 has already transmitted a plurality of signals UA, with no actuation of an evaluation unit 10 until the time t3 of the evaluation unit 10
  • the evaluation unit 10 furthermore generates the cyclic, predetermined signal UA described in FIG. 4, which via the signal output 11 to the first emergency-off unit 20
  • the temporal signal profile of the signal UA is shown at the top in FIG. 5 and corresponds to the signal shown in FIG.
  • the emergency stop unit 20 receives in current cycle the already described signal UA at the signal input 21 and modulates the signal pulse 530, which corresponds to the signal pulse 430 of the signal UA shown in FIG. 4, such that the actuation of the emergency stop switch 23 of the evaluation unit 10 can be signaled.
  • the signal pulse 530 shown in Fig. 5 can be modulated by means of the transistor 70 such that the received signal pulse 530 starts with two low levels 531, 532, which have the length 2Tb.
  • the signal pulse 530 in the emergency off unit 20 is blanked out for the time of a double clock length Tb.
  • the remainder of the signal pulse 530, labeled 530 'in FIG. 5, is not modulated.
  • the modulated signal UA is now used as the signal UB
  • the emergency stop unit 30 thus receives the start pulse 510, the pause 520 and the
  • modulated signal pulse consisting of the low levels 531 and 532 and the high level 530 '. Since the emergency unit 30 does not have to signal an emergency stop signal, it modulates the
  • the signal pulse 530 ' is therefore modulated so that it starts with a high level 533 of length Tb, which is a low level 534 or
  • the remainder of the signal pulse 530 ', labeled 530 "in FIG. 4, is not modulated.
  • the modulated signal UB is now transmitted as a signal UC to the emergency unit 40.
  • the emergency stop unit 40 thus receives the start pulse 510, the break 520 and the signal pulse modulated by the upstream emergency units 20 and 30.
  • the emergency unit 40 only modulates the signal pulse 530 "of the received signal UC in such a way that the actuation of the
  • the signal pulse 530 is modulated such that it begins with two low levels 535 and 536 and two blanked sections, each with the length Tb. The rest of the
  • Signal pulse 530 '' which only contains the final pulse 537, is not modulated.
  • the modulated signal UC is now used as the signal UD to the evaluation unit 10th
  • Signal pulse 530 now comprises a high level 533 and the end pulse 537.
  • the evaluation unit 10 recognizes from the low levels 531, 532 and 535, 536 of the received signal UD that the emergency stop switches 23 and 43 of the emergency shutdown units 20 and 40 have been actuated ,
  • the configuration phase could initially be followed by a reporting phase, which is not shown in the figures.
  • Notification units signal the emergency units 20, 30, 40 of the evaluation unit 10 only, if at all
  • the evaluation unit 10 sends a cyclical, predetermined signal to the first emergency stop unit 20 via its signal output 11.
  • This signal comprises a characteristic start pulse, which preferably differs from the starting pulse of the operating mode, for example in the width, followed by a signal pulse having a predetermined width.
  • the predetermined width the signal pulse is preferably not dependent on the number of Notausticianen in a subscriber circle in the reporting phase. All Notausticianen 20, 30, 40 receive the predetermined signal at its signal input 21, 31, 41 and forward this non-modulated to the subsequent participants, unless an emergency stop button has been pressed. If a critical system state, ie an actuated emergency stop switch, is to be signaled by one of the emergency shutdown units, then the received signal can be signaled by hiding one
  • the evaluation unit 10 is therefore only signaled in this reporting phase, if any critical system state, i. an actuated emergency stop switch is present and whether the safety function is to be activated.
  • the evaluation unit determines in the method described above which
  • the reporting phase offers shorter cycle times compared to the above-described operating mode, as long as no actuated emergency stop switch is signaled. This is particularly advantageous for a large number of emergency units in the subscriber chain. If errors occur, for example, as a result of short circuits or line breaks in the emergency stop circuit 1, then the evaluation unit 10 receives at least no complete signal UD at its signal input 12. In response to an incompletely received signal UD, the
  • Evaluation unit 10 also a security-based
  • the microcontroller 210 of the emergency units 20, 30, 40 can additionally determine an internal malfunction, for example a failed channel of a two-channel connected emergency stop switch, independently. Such a
  • Error can be from an emergency unit, such as the emergency unit 20, the evaluation unit 10 thereby
  • the evaluation unit 10 thus receives an incomplete signal UD and closes from the transmitted short-circuit signal to a faulty signal UD and can then trigger a safety-related function and / or an error signal.
  • a modulated signal 42 of a Notaustician '20, 30 may be at the signal output 22, 32, 40 a second
  • Signal detection device may be provided, which includes the resistors 251 and 250.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)

Abstract

La présente invention concerne un système de communication de sécurité (1) comprenant une unité d'évaluation (10) et un nombre d'abonnés (20, 30, 40) connectés en série comprenant chacun un capteur (23, 33, 43) ainsi qu'un procédé pour signaler des états du système. L'unité d'évaluation (10) présente une sortie de signal (11), une entrée de signal (12), un raccordement à la masse (15) et un dispositif pour produire un signal déterminé pour les unités d'arrêt d'urgence (20, 30, 40). Les abonnés (20, 30, 40) présentent respectivement une entrée de signal (21, 31, 41), une sortie de signal (22, 32, 42), un raccordement à la masse (25, 35, 45) pour un potentiel de référence, un capteur (23, 33, 43) ainsi qu'un circuit électronique (24, 34, 44). Chaque circuit électronique (24, 34, 44) est conçu pour moduler le signal déterminé pour signaler l'état du système du capteur (23, 33, 43) concerné. L'unité d'évaluation (10) est conçue pour évaluer le signal déterminé modulé et pour commander une fonction de sécurité en réponse au résultat d'évaluation.
EP10784684.2A 2009-10-26 2010-10-25 Système de communication de sécurité pour signaler des états du système Active EP2494534B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910050692 DE102009050692B4 (de) 2009-10-26 2009-10-26 Sicherheits-Kommunikationssystem zur Signalisierung von Systemzuständen
PCT/EP2010/006503 WO2011054458A1 (fr) 2009-10-26 2010-10-25 Système de communication de sécurité pour signaler des états du système

Publications (2)

Publication Number Publication Date
EP2494534A1 true EP2494534A1 (fr) 2012-09-05
EP2494534B1 EP2494534B1 (fr) 2014-12-03

Family

ID=43480802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10784684.2A Active EP2494534B1 (fr) 2009-10-26 2010-10-25 Système de communication de sécurité pour signaler des états du système

Country Status (3)

Country Link
EP (1) EP2494534B1 (fr)
DE (1) DE102009050692B4 (fr)
WO (1) WO2011054458A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014208709A1 (de) 2014-05-09 2015-11-12 Smiths Heimann Gmbh Sicherheitseinrichtung
GB2551501A (en) 2016-06-17 2017-12-27 Sumitomo Chemical Co Nanoparticles
WO2018007609A1 (fr) * 2016-07-07 2018-01-11 Utc Fire & Security Emea Bvba Système de transmission de données de capteurs

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DE2836760C2 (de) * 1978-08-23 1983-11-17 Dr. Alfred Ristow GmbH & Co, 7500 Karlsruhe Elektronisches Fernüberwachungssystem
US4290055A (en) * 1979-12-05 1981-09-15 Technical Development Ltd Scanning control system
DE3008450C2 (de) * 1980-03-05 1986-09-18 Georg Prof. Dr. 8012 Ottobrunn Färber Sequentielles Übertragungssystem zum adressenlosen Anschließen mehrerer Teilnehmer an eine Zentrale
ATE116464T1 (de) * 1988-10-06 1995-01-15 Siemens Ag Verfahren zum energiesparenden betrieb von gefahrenmeldern in einer gefahrenmeldeanlage.
EP0450119B1 (fr) * 1990-04-03 1996-01-10 Siemens Aktiengesellschaft Dispositif pour raccorder des éléments additionnels à une ligne servant à la surveillance et déjà existante
DE19643013C1 (de) * 1996-10-18 1998-02-12 Telefunken Microelectron Datenübertragungssystem
DE19742716C5 (de) * 1997-09-26 2005-12-01 Phoenix Contact Gmbh & Co. Kg Steuer- und Datenübertragungsanlage und Verfahren zum Übertragen von sicherheitsbezogenen Daten
AT412315B (de) * 2002-01-17 2004-12-27 Bernecker & Rainer Ind Elektro Anlage zum übertragen von daten

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Title
See references of WO2011054458A1 *

Also Published As

Publication number Publication date
DE102009050692B4 (de) 2011-12-01
DE102009050692A1 (de) 2011-04-28
WO2011054458A1 (fr) 2011-05-12
EP2494534B1 (fr) 2014-12-03

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