EP0853366B1 - Device for transmission of control signals to valves - Google Patents
Device for transmission of control signals to valves Download PDFInfo
- Publication number
- EP0853366B1 EP0853366B1 EP97250353A EP97250353A EP0853366B1 EP 0853366 B1 EP0853366 B1 EP 0853366B1 EP 97250353 A EP97250353 A EP 97250353A EP 97250353 A EP97250353 A EP 97250353A EP 0853366 B1 EP0853366 B1 EP 0853366B1
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- EP
- European Patent Office
- Prior art keywords
- side contacts
- valve
- valves
- connection
- contacts
- 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
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0846—Electrical details
- F15B13/0857—Electrical connecting means, e.g. plugs, sockets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0846—Electrical details
- F15B13/0867—Data bus systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0878—Assembly of modular units
- F15B13/0882—Assembly of modular units using identical modular elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/085—Servomotor systems incorporating electrically operated control means using a data bus, e.g. "CANBUS"
Definitions
- the invention relates to a device for transmitting control signals according to the Preamble of claim 1.
- Such devices form the interface between a bus line and above valves to be controlled and, in so far, set serial signals via the bus system are converted into binary signals that can be used by the valve as control signals are.
- two basic principles are known in the prior art.
- a decentralized principle - such as - avoids the high wiring effort it is known for example from the publication DE 39 15 456 - achieved.
- This solution for the transmission of control signals to the valve has the advantage that the bus line is looped through from valve to valve can be and so far a wiring effort for the valves is kept very low.
- connection elements are used Application from the brochure "The intelligent solution directly at the valve” (12/95, Druckblattnr. 885 890 220 3) from Mannesmann Rexroth Pneumatik GmbH are and are also referred to as contact bridges.
- the connecting elements are in essentially of an elongated cuboid housing with at least one connection for the solenoid of a valve, an optical operating status indicator and on Electrical contact means arranged in the housing for connection on the input and output sides with further connection elements. They have the task of decoding electronics and one Driver electronics for converting the control signal into a switching signal for the Electromagnet, which serves as an actuator for the valve, and the bus line loop through to the next connection element. For this they have an internal wiring which is geared towards serial data transmission in the bus system. Inevitable at This decentralized principle requires a lot of electronic components because each valve must be provided with a decoding chip.
- DE 44 44 024 A1 discloses a device for transmitting control signals, between a bus line and a valve unit consisting of several valves is arranged, with connection elements each assigned to at least one valve and with this are electrically connected.
- connection elements each assigned to at least one valve and with this are electrically connected.
- active connection elements there are active connection elements and on the other hand, passive connection elements are provided, of which the active connection elements have a decoding chip that is electrically connected on the input side to the bus line and has more than one connection for controlling valves on the output side.
- the connection elements are star-like connected with each other.
- EP 0 452 658 A1 discloses a type of series connection of electrical connection elements in a row via corresponding input and output side Contacts to create a signal transmission system for the home automation system. It if a bus line is not looped through from connection element to connection element, which transmits serial signals.
- the serial bus line ends at the bus coupling unit (BA).
- BA bus coupling unit
- AU1 ... 4 there is only a parallel one Signal transmission to every consumer (e.g. a lamp).
- this internal parallel looping through the bus line is the number of cascadable Connection elements (adapter units) limited to the number of outputs on Decoding chip.
- the invention has for its object a device for transmitting To create control signals between the bus line and valves with a minimal Wiring effort, and with which a practically infinite number of Connection elements for valves, without exposed outer lines, one behind the other can be connected.
- the invention includes the technical teaching that the active and passive Have connection elements on the input and output side contacts, via which the Connection elements connected in series and by means of internal cables are electrically connected, an extension of which is looped through to the pin Valves can be connected to the bus line in such a way that the output contacts of the last passive connection element with the input contacts of another Active connection element are connected to the further passive connection elements can be connected.
- the active connection elements have decoding electronics in the form a decoding chip.
- the decoding chip is connected on the input side to the bus line and has connections on the output side for controlling valves. At least one connection is guided to the associated valve via the active connection element.
- the others Connections are made via the passive connection elements with the corresponding ones Valves electrically connected.
- This integration of the bus electronics into an active one Connection element has the advantage that a central decoding electronics on the Valve unit can be dispensed with entirely.
- This also enables inventive, partially decentralized principle of the arrangement of the decoding electronics economical use of only one decoding chip for several valves.
- the use of Connection elements instead of an exposed wiring for forwarding the Control signal to the valves also avoids any manual wiring and allows a modular design.
- passive Connection elements used, which are preferably each assigned to a valve. All passive connection elements have an offset internal wiring, so that the Control signal for the valves through the passive connection elements to each to be controlled valve can be passed, the individual passive Connection elements have the same internal wiring and therefore also among themselves are interchangeable.
- the invention provides that in addition to the control lines leading to the individual valves, the Bus line is looped through from pin to pin in the same way. Because of The scarce number of available contacts is particularly suitable for this only two-pole bus system.
- By carrying the bus line through everyone Connection elements it is possible, after the last one in a row passive connection elements which can be connected in series are again an active connection element intrusion, which in turn repeats at least one valve and itself subsequent passive connection elements further valves can be controlled.
- the number of passive connection elements that can connect behind an active connection element is limited by the number of decoder chips on the active connection element Available connections for the operation of valves.
- an emergency stop line supplies the valves to be controlled with the operating voltage. She is Part of a safety-related facility. If the emergency stop line is operated by one central switch off, this causes the actuators to stop immediately the entire system that is operated via the valves without the current Switching state of the control electronics is lost. This is a safe restart the system possible.
- the first valve 7 via the associated connection element 3 and connected to a two-pole bus line via a junction box 2.
- a bus system for the preferred embodiment of the invention is an AS-Interface bus, because this bus standard especially for the control of machine-related binary elements - such as relays, Switches or valves - has been designed and is therefore suitable for use as a fieldbus in the area near the valve is particularly suitable.
- the AS-Interface bus standard only allows serial data transmission via one two-pole bus line, which enables economical cabling.
- the active connection element as a decoding chip receives an AS-Interface chip 19. This receives the bus signals on the input side and is able via its four ports that are initialized that they form four outputs to control four valves.
- the first valve 7 is directly with the active connector 3 connected.
- the second valve 8 is passive Connection element 4 connected behind the active connection element 3.
- the third valve 9 as well the fourth valve 10 follow this via their passive connection elements 5 and 6 in the same Wise.
- the four outputs of the AS-Interface chip 19 are thus occupied.
- valves can be connected via a next active connection element 11, which itself is assigned to the valve 13 and on the input side to the fourth passive connection element 6 connects to be activated.
- a valve 14 can then in turn be connected to it via a passive one Connection element 12 and a further three passive connection elements and thus three valves operate.
- the limit of the AS-Interface standard can be switched on with a maximum of 31 AS-Interface chips 19 reached on an AS-Interface bus line 1.
- FIG. 2 The integration of an AS-Interface chip 19 into an active connection element is shown in FIG. 2 shown.
- Pin1 and Pin2 is the input side Contacts 16 led to the two-pole emergency stop line 15. This is exactly the same as the corresponding output contacts 17 looped through.
- Pin3 and Pin4 the contacts 16 on the input side are connected to the two-pole AS-Interface bus line 1. This is also the same as the pin on the corresponding output contacts 17 of the Connection element looped through.
- the AS-Interface chip 19 engages that on the input side serial bus signal from the bus line looped through the active connection element.
- the The first of its four outputs is the one assigned to the active connection element Valve connected via the electrical valve connection 18.
- the other three outputs of the AS-Interface chips are sequentially connected to Pin5, Pin6 and Pin7 on the output side Contacts 17 out.
- FIG. 3 shows a further advantageous internal connection of the AS-Interface chip 19 with an active connection element.
- This connection element has two special features Connections 18 to control valves.
- only a similar passive connection element or two passive connection elements with one valve connection each via the associated active one Connection element are operated in order to increase the connection capacity on the AS-Interface chip to fully utilize.
- FIG. 4 shows the internal wiring of a passive connection element for operating a Valve.
- Pin1 to Pin4 of the input-side contacts 16 are the same as pins on the output-side contacts 17 connected to the bus line 1 and the emergency stop line 15 through the connecting elements of the valve unit connected in series in a row to lead.
- Pin5 of the contacts 16 on the input side goes to the valve connection 18.
- Pin6 and Pin7 the contacts 16 on the input side are offset in this way from the contacts 17 on the output side connected that they go there to Pin5 or to Pin6.
- Any passive connector contains, like every active connection element, one not shown in the figures Driver transistor, which uses the control signals, the operating voltage for the valve, which tapped by the emergency stop line switches.
- FIG. 5 Another variant for wiring the passive connection element for operation two valves can be seen in FIG. 5.
- Pin7 of the input-side contacts 16 is pin5 of the output-side Contacts 17 connected.
- the preferred embodiment according to the invention results the device for transmitting control signals from the AS-Interface bus line 1 to a valve unit.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Programmable Controllers (AREA)
- Magnetically Actuated Valves (AREA)
Description
Die Erfindung betrifft eine Einrichtung zur Übermittlung von Steuersignalen gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device for transmitting control signals according to the Preamble of claim 1.
Derartige Einrichtungen bilden die Schnittstelle zwischen einer Busleitung und darüber anzusteuernden Ventilen und setzen insoweit serielle Signale, die über das Bussystem übertragen werden in binäre Signale um, die vom Ventil als Ansteuerungssignale verwertbar sind. Im Stand der Technik sind dazu zwei grundsätzliche Prinzipien bekannt. Such devices form the interface between a bus line and above valves to be controlled and, in so far, set serial signals via the bus system are converted into binary signals that can be used by the valve as control signals are. To this end, two basic principles are known in the prior art.
Zum einen kann nach einem zentralen Prinzip, wie es beispielsweise aus dem Produktkatalog "Know-how in Pneumatik" (11/93, Kapitel 6, Seite 6.068) der Firma Mannesmann Rexroth Pneumatik GmbH bekannt ist, eine komplette Ventileinheit, die eine Zusammenfassung mehrerer Ventile zu einer baulichen Einheit darstellt, über eine zentrale Decodierelektronik angesteuert werden. Diese zentrale Decodierelektronik setzt die Ansteuersignale, die seriell über die Busleitung übertragen werden, in binäre Ansteuersignale für die Ventile um. Zu diesem Zwecke werden Leitungen jeweils ausgehend von der zentralen Decodierelektronik, die in einem Gehäuse untergebracht ist und auf der Ventileinheit angeordnet ist, zu den einzelnen Ventilen geführt. Diese Lösung reduziert durch den Buseinsatz zwar den Verdrahtungsaufwand von einer übergeordneten Steuerung zur Ventileinheit, es muß jedoch intern zwischen der zentralen Decodierelektronik und den Ventilen der Ventileinheit individuell von Hand verdrahtet werden. Dieser Aufwand spiegelt sich negativ in der Montagezeit und den damit verbundenen Kosten wider. Durch die Gefahr einer Falschverdrahtung der Ventile liegt darin auch eine Fehlerquelle.On the one hand, it can be based on a central principle such as that found in the product catalog "Know-how in pneumatics" (11/93, chapter 6, page 6.068) from Mannesmann Rexroth Pneumatik GmbH is known to have a complete valve unit, which is a summary represents several valves to a structural unit, via central decoding electronics can be controlled. This central decoding electronics sets the control signals, which are serial are transmitted via the bus line into binary control signals for the valves. To For this purpose, lines are always based on the central decoding electronics, which is housed in a housing and is arranged on the valve unit, to the led individual valves. This solution reduces the bus usage Wiring effort from a higher-level control to the valve unit, but it must internally between the central decoding electronics and the valves of the valve unit can be individually wired by hand. This effort is negatively reflected in the Assembly time and the associated costs. By the danger of one Incorrect wiring of the valves is also a source of errors.
Eine Vermeidung des hohen Verdrahtungsaufwandes wird durch ein dezentrales Prinzip - wie es beispielsweise aus der Druckschrift DE 39 15 456 bekannt ist - erzielt. Dabei erfolgt die Decodierung von Bussignalen jeweils direkt an dem anzusteuernden Ventil mittels eines dem Ventil zugeordneten Decodierchips. Diese Lösung zur Übermittlung von Steuersignalen an das Ventil hat den Vorteil, daß hier die Busleitung von Ventil zu Ventil durchgeschleift werden kann und insoweit ein Verdrahtungsaufwand für die Ventile sehr klein gehalten wird.A decentralized principle - such as - avoids the high wiring effort it is known for example from the publication DE 39 15 456 - achieved. The Decoding of bus signals each directly on the valve to be controlled by means of a Decoder chips associated with valve. This solution for the transmission of control signals to the valve has the advantage that the bus line is looped through from valve to valve can be and so far a wiring effort for the valves is kept very low.
Zur Vereinfachung der Ventil-zu-Ventil-Verdrahtung kommen Anschlußelemente zur Anwendung, die aus dem Prospekt "Die intelligente Lösung direkt am Ventil" (12/95, Druckblattnr. 885 890 220 3) der Firma Mannesmann Rexroth Pneumatik GmbH bekannt sind und auch als Kontaktbrücken bezeichnet werden. Die Anschlußelemente bestehen im wesentlichen aus einem länglich quaderförmigen Gehäuse, mit mindestens einem Anschluß für den Elektromagneten eines Ventils, einer optischen Betriebszustandsanzeige sowie am Gehäuse angeordneten elektrischen Kontaktmitteln zur ein- und ausgangsseitigen Verbindung mit weiteren Anschlußelementen. Sie haben die Aufgabe die Decodierelektronik sowie eine Treiberelektronik zur Umsetzung des Ansteuersignals in ein Schaltsignal für den Elektromagneten, der als Stellantrieb für das Ventil dient, aufzunehmen und die Busleitung zum nächsten Anschlußelement durchzuschleifen. Dafür weisen sie eine interne Verdrahtung auf, die auf die serielle Datenübertragung im Bussystem ausgerichtet ist. Unvermeidbar bei diesem dezentralen Prinzip ist ein hoher Aufwand an elektronischen Bauelementen, weil hierbei jedes Ventil mit einem Decodierchip versehen werden muß.To simplify the valve-to-valve wiring, connection elements are used Application from the brochure "The intelligent solution directly at the valve" (12/95, Druckblattnr. 885 890 220 3) from Mannesmann Rexroth Pneumatik GmbH are and are also referred to as contact bridges. The connecting elements are in essentially of an elongated cuboid housing with at least one connection for the solenoid of a valve, an optical operating status indicator and on Electrical contact means arranged in the housing for connection on the input and output sides with further connection elements. They have the task of decoding electronics and one Driver electronics for converting the control signal into a switching signal for the Electromagnet, which serves as an actuator for the valve, and the bus line loop through to the next connection element. For this they have an internal wiring which is geared towards serial data transmission in the bus system. Inevitable at This decentralized principle requires a lot of electronic components because each valve must be provided with a decoding chip.
Aus der DE 44 44 024 A1 geht eine Einrichtung zur Übermittlung von Steuersignalen hervor, die zwischen einer Busleitung und einer aus mehreren Ventilen bestehenden Ventileinheit angeordnet ist, mit Anschlußelementen die je mindestens einem Ventil zugeordnet und mit diesem elektrisch verbunden sind. Hierbei sind einerseits aktive Anschlußelemente und andererseits passive Anschlußelemente vorgesehen, wovon die aktiven Anschlußelemente einen Decodierchip besitzen, der eingangsseitig mit der Busleitung elektrisch verbunden ist und ausgangsseitig mehr als einen Anschluss zur Ansteuerung von Ventilen aufweist. Es sind weiterhin mindestens ein Anschluss mit dem/den zugeordneten Ventil/Ventilen und die weiteren Anschlüsse über die passiven Anschlußelemente mit den jeweils dazugehörigen Ventilen elektrisch verbunden. Bei dieser Lösung sind die Anschlußelemente sternartig miteinander verbunden. Von jedem hier als aktivem Anschlußelement anzusehenden Bauteil gehen mehrere freiliegende äußere Kabel aus, die an ihrem Ende jeweils das passive Anschlußelement aufweisen. Weiterhin ist eine freiliegende Busleitung parallel neben den Ventilen außen entlang der Ventileinheit vorgesehen. Die Begrenzung auf die Anzahl der Ausgänge des Decodierchips wird bei dieser Lösung dadurch aufgehoben, dass jedes weitere aktive Anschlußelement wieder auf die äußere freiliegende Busleitung zurückgreift. Diese Maßnahmen führen insgesamt zu einem recht hohen Verdrahtungsaufwand. DE 44 44 024 A1 discloses a device for transmitting control signals, between a bus line and a valve unit consisting of several valves is arranged, with connection elements each assigned to at least one valve and with this are electrically connected. On the one hand there are active connection elements and on the other hand, passive connection elements are provided, of which the active connection elements have a decoding chip that is electrically connected on the input side to the bus line and has more than one connection for controlling valves on the output side. There are furthermore at least one connection with the assigned valve (s) and the further connections via the passive connection elements with the corresponding ones Valves electrically connected. In this solution, the connection elements are star-like connected with each other. From each component to be viewed here as an active connection element several exposed outer cables go out, the end of which is the passive one Have connection element. Furthermore, an exposed bus line is parallel to the Valves provided along the outside of the valve unit. Limitation to the number of With this solution, the outputs of the decoding chip are canceled by the fact that each additional one active connection element accesses the outer exposed bus line again. This All in all, measures lead to a very high amount of wiring.
Die EP 0 452 658 A1 offenbart in technischer Hinsicht eine Art Hintereinanderschaltung von elektrischen Anschlußelementen in einer Reihe über entsprechende ein- und ausgangsseitige Kontakte, um hierüber ein Signalübertragungssystem für die Hausleittechnik zu schaffen. Es wird hier nicht eine Busleitung von Anschlußelement zu Anschlußelement durchgeschleift, welche serielle Signale überträgt. Die serielle Busleitung endet an der Busankopplungseinheit (BA). Mit den nachfolgenden Adaptereinheiten (AU1...4) erfolgt lediglich noch eine parallele Signalübertragung zu jedem Verbraucher (z.B. einer Leuchte) hin. Mangels dieser internen parallelen Durchschleifung der Busleitung ist die Anzahl der hintereinanderschaltbaren Anschlußelemente (Adaptereinheiten) begrenzt auf die Anzahl der Ausgänge am Decodierchip.From a technical point of view, EP 0 452 658 A1 discloses a type of series connection of electrical connection elements in a row via corresponding input and output side Contacts to create a signal transmission system for the home automation system. It if a bus line is not looped through from connection element to connection element, which transmits serial signals. The serial bus line ends at the bus coupling unit (BA). With the following adapter units (AU1 ... 4) there is only a parallel one Signal transmission to every consumer (e.g. a lamp). In the absence of this internal parallel looping through the bus line is the number of cascadable Connection elements (adapter units) limited to the number of outputs on Decoding chip.
Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung zur Übermittlung von Steuersignalen zwischen Busleitung und Ventilen zu schaffen, die mit einem minimalen Verdrahtungsaufwand auskommt, und mit welcher eine praktisch unendliche Anzahl von Anschlußelementen für Ventile, ohne freiliegende äußere Leitungen, hintereinander angeschlossen werden können.The invention has for its object a device for transmitting To create control signals between the bus line and valves with a minimal Wiring effort, and with which a practically infinite number of Connection elements for valves, without exposed outer lines, one behind the other can be connected.
Diese Aufgabe wird gelöst durch die kennzeichnenden Merkmale des Anspruchs 1. Die Unteransprüche 2 bis 7 geben vorteilhafte Ausgestaltungsformen der Erfindung wieder.This object is achieved by the characterizing features of claim 1 Subclaims 2 to 7 represent advantageous embodiments of the invention.
Die Erfindung schließt die technische Lehre ein, daß die aktiven und passiven Anschlußelemente eingangs- und ausgangsseitige Kontakte aufweisen, über welche die Anschlußelemente in einer Reihe hintereinandergeschaltet und mittels interner Kabel elektrisch verbunden sind, wobei eine Erweiterung der an die pingleich durchgeschleifte Busleitung aufschaltbaren Ventile derart erfolgt, daß die ausgangsseitigen Kontakte des letzten passiven Anschlußelements mit den eingangsseitigen Kontakten eines weiteren aktiven Anschlußelements verbunden sind, an dem weitere passive Anschlußelemente anschließbar sind. The invention includes the technical teaching that the active and passive Have connection elements on the input and output side contacts, via which the Connection elements connected in series and by means of internal cables are electrically connected, an extension of which is looped through to the pin Valves can be connected to the bus line in such a way that the output contacts of the last passive connection element with the input contacts of another Active connection element are connected to the further passive connection elements can be connected.
Erfindungsgemäß besitzen die aktiven Anschlußelemente eine Decodierelektronik in Form eines Decodierchips. Der Decodierchip ist eingangsseitig mit der Busleitung verbunden und besitzt ausgangsseitig Anschlüsse zur Ansteuerung von Ventilen. Mindestens ein Anschluß wird dabei über das aktive Anschlußelement an das zugeordnete Ventil geführt. Die weiteren Anschlüsse werden über die passiven Anschlußelemente mit den jeweils dazugehörigen Ventilen elektrisch verbunden. Diese Integration der Buselektronik in ein aktives Anschlußelement bietet den Vorteil, daß auf eine zentrale Decodierelektronik auf der Ventileinheit gänzlich verzichtet werden kann. Des weiteren ermöglicht das erfindungsgemäße, teilweise dezentrale Prinzip der Anordnung der Decodierelektronik die sparsame Verwendung nur eines Decodierchips für mehrere Ventile. Die Verwendung von Anschlußelementen an Stelle einer freiliegenden Verdrahtung zur Weiterleitung des Ansteuersignals an die Ventile vermeidet darüber hinaus jeglichen Handverdrahtungsaufwand und gestattet eine modulare Bauweise.According to the invention, the active connection elements have decoding electronics in the form a decoding chip. The decoding chip is connected on the input side to the bus line and has connections on the output side for controlling valves. At least one connection is guided to the associated valve via the active connection element. The others Connections are made via the passive connection elements with the corresponding ones Valves electrically connected. This integration of the bus electronics into an active one Connection element has the advantage that a central decoding electronics on the Valve unit can be dispensed with entirely. This also enables inventive, partially decentralized principle of the arrangement of the decoding electronics economical use of only one decoding chip for several valves. The use of Connection elements instead of an exposed wiring for forwarding the Control signal to the valves also avoids any manual wiring and allows a modular design.
Zur Weiterleitung der Ansteuersignale vom aktiven Anschlußelement werden passive Anschlußelemente verwendet, die vorzugsweise je einem Ventil zugeordnet sind. Alle passiven Anschlußelemente weisen eine versetzte interne Verdrahtung auf, so daß das Ansteuersignal für die Ventile durch die passiven Anschlußelemente an das jeweils anzusteuernde Ventil durchgereicht werden kann, wobei die einzelnen passiven Anschlußelemente die gleiche interne Verdrahtung besitzen und insofern auch untereinander austauschbar sind.To forward the control signals from the active connection element are passive Connection elements used, which are preferably each assigned to a valve. All passive connection elements have an offset internal wiring, so that the Control signal for the valves through the passive connection elements to each to be controlled valve can be passed, the individual passive Connection elements have the same internal wiring and therefore also among themselves are interchangeable.
Seine natürliche Begrenzung kann die Anzahl der derartig an einen Decodierchip aufschaltbaren Ventile in der Anzahl der an den Anschlußelementen zur Verfügung stehenden Kontakten finden. Zur Vermeidung dieser Begrenzung ist es erfindungsgemäß vorgesehen, daß zusätzlich zu den Ansteuerleitungen, die zu den einzelnen Ventilen führen, auch die Busleitung von Anschlußelement zu Anschlußelement pingleich durchgeschleift wird. Wegen der knappen Anzahl der zur Verfügung stehenden Kontakte eignet sich dafür insbesondere ein nur zweipoliges Bussystem. Durch die Mitführung der Busleitung durch alle Anschlußelemente ist es möglich, nach dem letzten der in eine Reihe hintereinanderschaltbaren passiven Anschlußelemente wieder ein aktives Anschlußelement aufzuschalten, über welches wiederum selbst mindestens ein Ventil und über sich wiederholt anschließende passive Anschlußelemente weitere Ventile ansteuerbar sind. Die Anzahl der passiven Anschlußelemente, die sich hinter ein aktives Anschlußelement anschließen können, ist begrenzt durch die Anzahl der am Decodierchip des aktiven Anschlußelementes zur Verfügung stehenden Anschlüsse zum Betrieb von Ventilen.Its natural limit can be the number of such decoder chips openable valves in the number of available on the connection elements Find contacts. To avoid this limitation, the invention provides that in addition to the control lines leading to the individual valves, the Bus line is looped through from pin to pin in the same way. Because of The scarce number of available contacts is particularly suitable for this only two-pole bus system. By carrying the bus line through everyone Connection elements it is possible, after the last one in a row passive connection elements which can be connected in series are again an active connection element intrusion, which in turn repeats at least one valve and itself subsequent passive connection elements further valves can be controlled. The number of passive connection elements that can connect behind an active connection element, is limited by the number of decoder chips on the active connection element Available connections for the operation of valves.
Neben der durch alle Anschlußelemente durchgeschleiften Busleitung ist es erfindungsgemäß vorgesehen, auch eine Not-Aus-Leitung durch alle Anschlußelemente zu führen. Diese Not-Aus-Leitung versorgt die anzusteuernden Ventile mit der Betriebsspannung. Sie ist Bestandteil einer sicherheitstechnischen Einrichtung. Wird die Not-Aus-Leitung von einem zentralen Schalter aus unterbrochen, so bewirkt dies einen sofortigen Stillstand der Aktoren der gesamten Anlage, die über die Ventile betrieben werden, ohne daß der aktuelle Schaltzustand der Ansteuerelektronik verloren geht. Damit ist ein gefahrloses Wiederanfahren der Anlage möglich.In addition to the bus line looped through all connection elements, it is according to the invention provided to also lead an emergency stop line through all connection elements. This emergency stop line supplies the valves to be controlled with the operating voltage. she is Part of a safety-related facility. If the emergency stop line is operated by one central switch off, this causes the actuators to stop immediately the entire system that is operated via the valves without the current Switching state of the control electronics is lost. This is a safe restart the system possible.
Andere vorteilhafte Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen
gekennzeichnet bzw. werden nachstehend zusammen mit der Beschreibung der bevorzugten
Ausführung der Erfindung anhand der Figuren näher dargestellt.
Es zeigt:
- Figur 1
- eine Anordnung der Anschlußelemente zur Übermittlung der Ansteuersignale an die Ventile,
- Figur 2
- ein interner Verdrahtungsplan des aktiven Anschlußelemerites zur Ansteuerung eines Ventils je Anschlußelement,
Figur 3- ein interner Verdrahtungsplan des aktiven Anschlußelementes zur Ansteuerung zweier Ventile je Anschlußeinheit,
- Figur 4
- ein interner Verdrahtungsplan des passiven Anschlußelementes zur Ansteuerung eines Ventils je Anschlußelement,
- Figur 5
- ein interner Verdrahtungsplan des passiven Anschlußelementes zur Ansteuerung zweier Ventils je Anschlußelement,
- Figur 6
- eine Schaltungsanordnung der in einer Reihe hintereinander-geschalteten Anschlußelemente.
It shows:
- Figure 1
- an arrangement of the connection elements for transmitting the control signals to the valves,
- Figure 2
- an internal wiring diagram of the active connection element to control one valve per connection element,
- Figure 3
- an internal wiring diagram of the active connection element to control two valves per connection unit,
- Figure 4
- an internal wiring diagram of the passive connection element to control one valve per connection element,
- Figure 5
- an internal wiring diagram of the passive connection element for controlling two valves per connection element,
- Figure 6
- a circuit arrangement of the connection elements connected in series in a row.
Nach Figur 1 ist das erste Ventil 7 über das ihm zugeordnete aktive Anschlußelement 3 und
über eine Abzweigdose 2 an eine zweipolige Busleitung angeschlossen. Als Bussystem für
die bevorzugte Ausführungsvariante der Erfindung ist ein AS-Interface-Bus vorgesehen, da
dieser Busstandard speziell für die Ansteuerung maschinennaher Binärelemente - wie Relais,
Schalter oder Ventile - konzipiert wurde und sich insoweit für die Anwendung als Feldbus im
ventilnahen Bereich besonders eignet.According to Figure 1, the first valve 7 via the associated
Der AS-Interface-Busstandard gestattet die serielle Datenübertragung über eine nur
zweipolige Busleitung, was eine sparsame Verkabelung ermöglicht. Zur Umsetzung der
seriellen Bussignale in binäre Ansteuersignale für die Elektromagneten der Ventile beherbergt
das aktive Anschlußelement als Decodierchip einen AS-Interface-Chip 19. Dieser empfängt
eingangsseitig die Bussignale und ist in der Lage über seine vier Ports, die so initialisiert sind,
daß sie vier Ausgänge bilden, vier Ventile anzusteuern. Das erste Ventil 7 ist direkt mit dem
aktiven Anschlußelement 3 verbunden. Das zweite Ventil 8 ist über sein passives
Anschlußelement 4 hinter das aktive Anschlußelement 3 geschaltet. Das dritte Ventil 9 sowie
das vierte Ventil 10 folgen diesem über ihre passiven Anschlußelemente 5 bzw. 6 in gleicher
Weise. Somit sind die vier Ausgänge des AS-Interface-Chips 19 belegt.The AS-Interface bus standard only allows serial data transmission via one
two-pole bus line, which enables economical cabling. To implement the
serial bus signals in binary control signals for the electromagnets of the valves
the active connection element as a decoding chip receives an AS-
Weitere Ventile können jedoch über ein nächstes aktives Anschlußelement 11, welches selbst
dem Ventil 13 zugeordnet ist und sich eingangsseitig an das vierte passive Anschlußelement 6
anschließt, aufgeschalten werden. Daran kann dann wiederum ein Ventil 14 über ein passives
Anschlußelement 12 sowie weitere drei passive Anschlußelemente und damit drei Ventile
betrieben werden. Die Grenze des AS-Interface-Standards ist mit maximal 31 aufschaltbaren
AS-Interface-Chips 19 an eine AS-Interface-Busleitung 1 erreicht.However, further valves can be connected via a next
Die Integration eines AS-Interface-Chips 19 in ein aktives Anschlußelement ist in Figur 2
dargestellt. Bei der bevorzugten internen Verschaltung ist Pin1 und Pin2 der eingangsseitigen
Kontakte 16 an die zweipolige Not-Aus-Leitung 15 geführt. Diese ist pingleich an die
entsprechenden ausgangsseitigen Kontakte 17 durchgeschleift. Pin3 und Pin4 der
eingangsseitigen Kontakte 16 sind mit der zweipoligen AS-Interface-Busleitung 1 verbunden.
Auch diese ist pingleich an die entsprechenden ausgangsseitigen Kontakte 17 des
Anschlußelements durchgeschleift. Der AS-Interface-Chip 19 greift eingangsseitig das
serielle Bussignal von der durch das aktive Anschlußelement geschleiften Busleitung ab. Der
erste seiner insgesamt vier Ausgänge ist mit dem dem aktiven Anschlußelement zugeordneten
Ventil über den elektrischen Ventilanschluß 18 verbunden. Die weiteren drei Ausgänge des
AS-Interfacechips werden der Reihe nach an Pin5, Pin6 und Pin7 der ausgangsseitigen
Kontakte 17 geführt.The integration of an AS-
Die Figur 3 zeigt eine weitere vorteilhafte interne Verschaltung des AS-Interface-Chips 19
mit einem aktiven Anschlußelement. Diese Anschlußelement weist als Besonderheit zwei
Anschlüsse 18 zur Ansteuerung von Ventilen auf. Damit kann im Unterschied zu der
vorstehend beschriebenen Variante zur Ansteuerung eines Ventils mit einem
Anschlußelement, nur noch ein gleichartiges weiteres passives Anschlußelement oder zwei
passive Anschlußelemente mit je einem Ventilanschluß über das dazugehörige aktive
Anschlußelement betrieben werden, um damit die Anschlußkapazität am AS-Interface-Chip
komplett auszulasten.FIG. 3 shows a further advantageous internal connection of the AS-
Figur 4 zeigt die interne Verdrahtung eines passiven Anschlußelementes zum Betrieb eines
Ventils. Pin1 bis Pin4 der eingangsseitigen Kontakte 16 sind pingleich an die
ausgangsseitigen Kontakte 17 angeschlossen, um die Busleitung 1 sowie die Not-Aus-Leitung
15 durch die in einer Reihe hintereinandergeschalteten Anschlußelemente der Ventileinheit zu
führen. Pin5 der eingangsseitigen Kontakte 16 geht an den Ventilanschluß 18. Pin6 und Pin7
der eingangsseitigen Kontakte 16 sind derartig versetzt an die ausgangsseitigen Kontakte 17
angeschlossen, daß sie dort an Pin5 bzw. an Pin6 gehen. Jedes passive Anschlußelement
enthält ebenso wie jedes aktive Anschlußelement einen in den Figuren nicht dargestellten
Treibertransistor, der über die Ansteuersignale die Betriebsspannung für das Ventil, welches
von der Not-Aus-Leitung abgegriffen wird, schaltet.Figure 4 shows the internal wiring of a passive connection element for operating a
Valve. Pin1 to Pin4 of the input-
Eine andere Variante zur Verdrahtung des passiven Anschlußelementes für den Betrieb
zweier Ventile geht aus Figur 5 hervor. Im Unterschied zur vorstehend beschriebenen Figur 4
ist hier Pin5 und Pin6 der eingangsseitigen Kontakte 16 zum Anschluß zweier Ventile an
Anschluß 18 geführt. Pin7 der eingangsseitigen Kontakte 16 ist an Pin5 der ausgangsseitigen
Kontakte 17 angeschlossen.Another variant for wiring the passive connection element for operation
two valves can be seen in FIG. 5. In contrast to FIG. 4 described above
here is pin5 and pin6 of the
Werden gemäß der Anordnung nach Figur 6 die einzelnen aktiven und passiven
Anschlußelemente zum Betrieb je eines Ventils im Wechsel von einem aktiven
Anschlußelement 3 und drei passiven Anschlußelementen 4, 5, 6 über die Kontakte 16 und 17
hintereinandergeschaltet, so ergibt sich die erfindungsgemäß bevorzugte Ausführungsform
der Einrichtung zur Übermittlung von Steuersignalen von der AS-Inerface-Busleitung 1 zu
einer Ventileinheit. According to the arrangement according to FIG. 6, the individual active and passive
Connection elements for operating one valve alternately from an active
- 11
- AS-Interface-BusleitungAS-Interface bus
- 22
- AbzweigdoseJunction box
- 33
- aktives Anschlußelementactive connector
- 44
- passives Anschlußelementpassive connector
- 55
- passives Anschlußelementpassive connector
- 66
- passives Anschlußelementpassive connector
- 77
- erstes Ventilfirst valve
- 88th
- zweites Ventilsecond valve
- 99
- drittes Ventilthird valve
- 1010
- viertes Ventilfourth valve
- 1111
- aktives Anschlußelementactive connector
- 1212
- passives Anschlußelementpassive connector
- 1313
- fünftes Ventilfifth valve
- 1414
- sechstes Ventilsixth valve
- 1515
- Not-Aus-LeitungEmergency-line
- 1616
- eingangsseitige Kontakteinput contacts
- 1717
- ausgangsseitige Kontakteoutput contacts
- 1818
- Ventilanschlußvalve connection
- 1919
- AS-Interface-ChipAS-Interface Chip
Claims (7)
- Device for transmitting control signals which is arranged between a bus line (1) and a valve unit consisting of a plurality of valves (7, 8, 9, 10, 13, 14) with connector elements (3, 4, 5, 6, 11, 12) which are respectively assigned to at least one valve (7, 8, 9, 10, 13, 14) and electrically connected thereto, wherein on one hand, active connector elements (3, 11) and on the other hand passive connector elements (4, 5, 6, 12) are provided, wherein the active connector elements (3, 11) have a decoder chip (19) which is at an input side electrically connected to the bus line (1) and has more than one connection for controlling the valves at the output side, wherein at least at least one connection (18) is electrically connected to the assigned valve/valves (7) and the further connections are electrically connected to the respective appendant valves (8, 9, 10) via the passive connector elements (4, 5, 6)
characterized in that the active and passive connection elements (3, 4, 5, 6, 11, 12) are provided with input side and output side contacts (16, 17) via which the connector elements (3, 4, 5, 6, 11, 12) are connected in series and are electrically connected by means of internal cables, wherein an extension of the valves which are connectable to the looped-through bus line (1) with the same pin arrangement occurs in a way that the output side contacts (17) of the last passive connector element (6) are connected to the input side contacts (16) of a further active connector element (11) to which further passive connector elements (12) are connectable. - Device for transmitting control signals according to claim 1,
characterized in that the electrical connection of the valves (8, 9, 10, 14) occurs via the passive connector elements (4, 5, 6, 12) with a displacement such that respectively one cable of the connection of a valve is connected to another control signal carrying line and that the respective other cable of the connection of a valve is connected to a line which is common to all connector elements. - Device for transmitting control signals in accordance with claim 1,
characterized in that the bus line (1) and an additional emergency-shut-off-line (15) are looped-through from the input side contacts (16) to the output side contacts (17) with the same pin arrangement by means of the connector elements connected in series. - Device for transmitting control signals in accordance with claim 1,
characterized in that when 8-pin contacts (16, 17) are used, the wiring of the active connector elements (3, 11) provided for the control of a valve is carried out such that Pin1 and Pin2 of the input side contacts (16) are connected to the double-pole emergency-shut-off-line (15) which is looped-through to the respective input side contacts (17) with the same pin arrangement and that Pin3 and Pin 4 of the output side contacts (16) are connected to the double-poled AS-interface-bus line (1) which is also looped-through to the respective output side contact (17) of the connector element with the same pin arrangement and wherein the AS-interface-chip (19) contacts the serial bus signal from the bus line (1) looped-through the active connector element (3) at an input side, wherein the first of its overall four outputs are electrically connected to the valve (7) assigned to the active connector element (3) via the connection (18) and the further three outputs are connected in a row to Pin5, Pin6 and Pin7 of the output side contacts (17). - Device for transmitting control signals in accordance with claim 1,
characterized in that when 8-pin contacts (16, 17) are used, the wiring of the passive connector elements (4, 5, 6, 12) provided for the control of a valve is carried out such that Pin1 to Pin4 of the output side contacts (16) are connected to the output side contacts (17) with the same pin arrangement and Pin5 of the input side contacts (16) goes to connection (18) and Pin6 and Pin7 of the input side contacts (16) are connected to the output side contacts (17) with a displacement such that there they go to Pin5, respectively Pin6. - Device for transmitting control signals in accordance with claim 1,
characterized in that when 8-pin contacts are used, the wiring of the active connector elements provided for the control of two valves is carried out such that Pin1 and Pin2 of the input side contacts are led to the double-pole emergency-shut-off-line which is looped-through to the respective output side contacts with the same pin arrangement and that Pin3 and Pin4 of the input side contacts are connected to the double-poled AS-interface bus line which is also looped through to the respective output side contacts of the connection element with the same pin arrangement and wherein the AS-interface-chip takes at an input side the serial bus signal from the bus line looped through the active connection element wherein two of its overall four outputs are electrically connected to the valve assigned to the active connector element via the connections and the remaining two outputs are led to Pin5, Pin6 of the output side contacts in a series. - Device for transmitting control signals in accordance with claim 1,
characterized in that when 8-pin contacts are used, the wiring of the passive connection elements provided for the control of two valves is carried out such that Pin 1 to Pin4 of the input side contacts are connected to the output side contacts with the same pin arrangement and Pin5 as well as Pin6 of the input side contacts each goes to the connection for the two valves and Pin7 of the input side contacts is connected to Pin5 of the output side contacts.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19653714A DE19653714C1 (en) | 1996-12-10 | 1996-12-10 | Control signals transmission device for controlled valves |
| DE19653714 | 1996-12-10 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0853366A2 EP0853366A2 (en) | 1998-07-15 |
| EP0853366A3 EP0853366A3 (en) | 1998-12-09 |
| EP0853366B1 true EP0853366B1 (en) | 2003-03-12 |
Family
ID=7815810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97250353A Expired - Lifetime EP0853366B1 (en) | 1996-12-10 | 1997-11-21 | Device for transmission of control signals to valves |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0853366B1 (en) |
| DE (2) | DE19653714C1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29810102U1 (en) | 1998-06-05 | 1998-08-20 | Festo AG & Co, 73734 Esslingen | Control device for fluid-operated consumers |
| DE19840597A1 (en) * | 1998-09-05 | 2000-03-16 | Festo Ag & Co | Valve arrangement with at least one valve unit consisting of a plurality of electrically actuable valves |
| DE19904042A1 (en) * | 1999-02-02 | 2000-09-21 | Schmalz J Gmbh | Pneumatic ejector for industrial robots and automobile industry, has one or two solenoid valves and uses direct bus connection for electrical control connections of ejectors |
| DE10061599A1 (en) * | 2000-12-12 | 2002-06-13 | Siemens Building Tech Ag | Device for controling combustion system actuator drives uses control signals to drive actuator drive(s) that can be fed only by control line to regulator, drive position only by return line |
| DE10062918A1 (en) * | 2000-12-16 | 2002-06-20 | Buhler Motor Gmbh | Bus controlled actuator |
| DE10162525C1 (en) * | 2001-12-19 | 2003-06-18 | Rexroth Mecman Gmbh | Electromagnetic multi-way valve has magnetic field sensor followed by driver stage for contactlessly transferring drive signals via external data lines within range of sensor |
| DE10308183B4 (en) * | 2003-02-26 | 2005-03-03 | Rexroth Mecman Gmbh | Electronic device for controlling valves grouped in a valve unit |
| DE202005015791U1 (en) | 2005-10-07 | 2005-12-08 | Bürkert Werke GmbH & Co. KG | Modular system has a axial stack of electrical and pneumatic control sub modules for use in automation systems |
| EP2240834A1 (en) * | 2008-02-07 | 2010-10-20 | FESTO AG & Co. KG | Module system with serially arranged electronic modules |
| DE102016213725B4 (en) * | 2016-07-26 | 2022-12-01 | Festo Se & Co. Kg | Series module, connection module and modular control arrangement |
| GB201613901D0 (en) | 2016-08-12 | 2016-09-28 | Artemis Intelligent Power Ltd | Valve for fluid working machine, fluid working machine and method of operation |
| EP3419040B1 (en) * | 2017-06-21 | 2020-10-14 | Enexo AB | Add-on module for a din rail-mounted electrical device |
| DE102019203999B3 (en) * | 2019-03-25 | 2020-08-13 | Festo Se & Co. Kg | Pneumatic control device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3915456A1 (en) * | 1989-05-11 | 1990-11-15 | Herion Werke Kg | Two wire system for selective grouped load control - has microprocessor for digitised control of senser and receiver modules operating on multi-bit signals for enhanced reliability |
| DE4019465A1 (en) * | 1990-04-03 | 1991-10-10 | Merten Gmbh & Co Kg Geb | CONNECTION DEVICE FOR HOUSE CONTROL TECHNOLOGY |
| CH683021A5 (en) * | 1991-06-25 | 1993-12-31 | Walter Ag | Electromagnetic valve battery for pneumatic or hydraulic valves - has decoder module connected to each valve and coupled via local bus and power supply line to controller or bus module |
| DE4444024A1 (en) * | 1994-12-10 | 1996-06-13 | Festo Kg | Control device, in particular for controlling valves |
| DE29519678U1 (en) * | 1995-12-12 | 1996-02-01 | Klöckner-Moeller GmbH, 53115 Bonn | Bus-compatible amplifier module for drive arrangements of electromagnetic switching devices |
-
1996
- 1996-12-10 DE DE19653714A patent/DE19653714C1/en not_active Expired - Fee Related
-
1997
- 1997-11-21 DE DE59709494T patent/DE59709494D1/en not_active Expired - Lifetime
- 1997-11-21 EP EP97250353A patent/EP0853366B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0853366A3 (en) | 1998-12-09 |
| EP0853366A2 (en) | 1998-07-15 |
| DE19653714C1 (en) | 1997-12-11 |
| DE59709494D1 (en) | 2003-04-17 |
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