WO2020224774A1 - Procédé de configuration d'un réseau de communication destiné à la transmission cyclique de messages - Google Patents

Procédé de configuration d'un réseau de communication destiné à la transmission cyclique de messages Download PDF

Info

Publication number
WO2020224774A1
WO2020224774A1 PCT/EP2019/061832 EP2019061832W WO2020224774A1 WO 2020224774 A1 WO2020224774 A1 WO 2020224774A1 EP 2019061832 W EP2019061832 W EP 2019061832W WO 2020224774 A1 WO2020224774 A1 WO 2020224774A1
Authority
WO
WIPO (PCT)
Prior art keywords
message
data
network
messages
nwm2
Prior art date
Application number
PCT/EP2019/061832
Other languages
German (de)
English (en)
Inventor
Thomas Fischer
Stephan Höme
Konstantin Jung
Sven Kerschbaum
Marcel Kiessling
Frank Volkmann
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to PCT/EP2019/061832 priority Critical patent/WO2020224774A1/fr
Publication of WO2020224774A1 publication Critical patent/WO2020224774A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/55—Push-based network services

Definitions

  • the invention relates to a method for configuring an industrial real-time-capable communication network for the cyclical transmission of messages and an industrial real-time-capable communication network.
  • a typical industrial communication network comprises a message source as a sender, at least one message sink as a receiver and at least one network component as the respective connecting element between the sender and receiver (s).
  • data is taken from a model on the side of the message source (so-called publisher), packed into respective groups of the model and sent as messages (so-called network messages).
  • a respective message sink receives the messages and checks which of the groups he has subscribed to and uses the corresponding information from the messages.
  • Groups that are not relevant for a given message sink are discarded by the message sink when the message is received. A load on the message sink is thus reduced by discarding groups that are not required.
  • the communication network is burdened by the unnecessary transmission of unnecessary information. This additional load has so far been accepted at the expense of the communication network, which, however, increases its costs and has a negative effect on the real-time capability of data transmission with regard to latency times and / or jitter.
  • the object of the invention is to specify a method for configuring an industrial, real-time-capable communication network for the transmission of messages and an industrial real-time-capable communication network, which are functionally and / or structurally improved in such a way that the load on the communication network during cyclical transmission of messages is kept as low as possible.
  • a method for configuring an industrial real-time-capable communication network for the cyclical transmission of messages.
  • a respective message comprises one or more data records.
  • the communication network comprises a message source, at least one message sink and at least one network component as a component for forwarding messages.
  • the message source is designed to generate messages and send them cyclically (ie according to OPC UA Part 14 PubSub configuration).
  • the at least one message sink is designed to receive and process the messages.
  • At least one network component receives the messages from the message source or one of the network components and forwards them to the at least one message sink or one of the network components.
  • the method comprises the determination of a network topology of the communication network to determine the physical arrangement of the components connected to one another via a transmission medium, namely the message source, the at least one network component and the at least one message sink. It is determined which or which of the data records a respective one of the message sinks would like to receive (ie subscribe to). The respective data paths are then determined from the message source to the respective message sink for the transmission of the data records subscribed to by a respective message sink. Finally, the data records are grouped in several different messages based on the determined data paths, whereby the several different messages are sent cyclically in a respective data stream along different data paths or data path sections during operation of the communication network. As a result, each of the several different messages thus comprises one or more data records.
  • an industrial real-time capable communication network which is designed for the cyclic transmission of messages.
  • a respective message comprises one or more data records.
  • the communication network comprises a message source, which is designed to generate messages and to send them out cyclically, at least one message sink, which is designed to receive and process messages, and at least one network component as a message relaying component that sends messages from the message source or one of the network components receives and forwards to the at least one message sink or one of the network components.
  • the communication network is designed to provide a network topology of the communication network to determine the physical arrangement of the components connected to one another via a transmission medium, namely the message source, the at least one network component and the at least one message sink, determine.
  • the communication network is further designed to determine which or which of the data records a respective one of the message sinks would like to receive (ie subscribe to). Furthermore, the communication network is designed to determine respective data paths from the message source to the respective message sink for the transmission of the data records subscribed to by a respective message sink and to group the data records in several different messages based on the determined data paths, which in operation of the communication network the several different messages are sent cyclically in a respective data stream along different data paths or data path sections.
  • the proposed invention makes it possible to eliminate unnecessary data traffic from the communication network at an early stage.
  • an understanding of the interconnected components is developed based on the network topology of the communication network.
  • the data paths are determined via which the data records subscribed to by the message sinks must be transmitted. This allows the data records to be grouped in different messages that are routed to the message sinks via at least partially different data paths. This means that unnecessary data traffic can be limited to the smallest possible part of the communication network.
  • the communication network is based on the OPC UA PubSub standard.
  • the message source is designed to generate the messages in accordance with the OPC UA PubSub standard.
  • PubSub takes data from a model from the message source, packs it into respective data records and sends it via the messages.
  • the message sinks receive the messages and check the data records they have subscribed to using the PublisherID and WriterGroupID.
  • the determination of the network topology is preferably based on the TSN (Time Sensitive Network) standard.
  • TSN assumes that the communication network has an understanding of the data paths, since these are determined within the framework of TSN itself. The step of determining the network topology can thus be implemented using the known mechanisms of TSN. However, TSN has no understanding of the content of the messages and the data transmitted via the data paths.
  • a mechanism can be implemented which enables one-time defined dynamic paths for content contained in different messages. As a result, a transmission to message sinks not registered with the message source is prevented by network mechanisms.
  • the grouping of the data records in different messages according to the data paths resulting from the network topology, which are transmitted in a respective data stream, can be done by mechanisms of OPC UA PubSub.
  • the messages form logical units of data records. Individuals of the message sinks that receive a specific data stream with one of the various messages can conventionally have subscribed to part or all of the data sets and process them after they have been received.
  • the grouping of the data records in the various messages determines how great the overhead is that is transmitted to the message sinks in the course of the transmission of the data stream.
  • the amount of overhead is reduced by grouping the data records depending on the network topology. For example, the subscriptions of all message sinks that are connected to a specific network component can be served with a message in which the required data records are grouped. This means that only a data stream needs to be set up to this network component to which the message sinks are connected.
  • the grouping of the data records includes data records which pass through a number of data path sections together are packaged in a common message.
  • the number of data path sections to be traversed together can in principle be selected as desired. Depending on the network topology, it can already be sufficient if the data records contain exactly one data path section, i.e. a connection path between two components, traversed together. If this leads to too large a number of different messages and a correspondingly large number of data streams, the number of data path sections to be traversed together can also be selected to be larger. As a rule, this means that a message comprises a larger number of data records.
  • a further expedient embodiment provides that the grouping of the data records includes data records which, after a, in particular first, data path branching through a number of data path sections together, are packaged in a common message.
  • a data path branch is understood to mean the sending of a message or a data stream via at least two different paths.
  • Another embodiment provides that a respective data path is determined for the respective data streams in which the multiple different messages are transmitted cyclically and forwarding information is stored in the network components. This can be achieved, for example, by using known forwarding tables or by appropriately set up filters in the network components.
  • a data record identifier can be processed as forwarding information, each data record in the respective message being provided with a data record identifier.
  • the data record identifiers can be used to forward the messages containing data records on the data path which are of importance for a relevant message sink, i.e. have been subscribed to by this.
  • the filtering can therefore take place either through a filter implemented in software or in hardware.
  • a further expedient embodiment provides that the grouping of the data records takes place on the basis of identifiers of the network components, the data records that are subscribed to by network sinks connected to a certain network component are grouped in a message. As a result, there is a network topology-dependent grouping of the data records in the messages, which leads to less unnecessary data transmission and thus less resource consumption in the network.
  • Another expedient embodiment provides that the data records are grouped on the basis of device names of the network components. In hierarchical communication networks, the device designation can be used to form the messages, since this, for example when using the communication network in an industrial plant, relates to the respective location of the devices and is assigned hierarchically. Components can be grouped for a particular location, e.g. machine 1, using the name. In the communication network, this leads to a lower network load or to a lower consumption of resources, since the components of a machine mainly communicate with one another in order to perform a machine-specific task.
  • the invention also includes a method for the cyclical transmission of messages in a communications network configured according to the invention.
  • a computer program product which can be loaded directly into the internal memory of a digital computer and comprises software code sections with which the steps of the method described herein are carried out when the product is running on the computer.
  • the computer program product may be in the form of a physical storage medium, e.g. a USB memory stick, a DVD, a CD-ROM, a flash memory and the like, be embodied.
  • the computer program product can likewise be designed in the form of a signal that can be loaded via a wireless or wired network.
  • the industrial real-time-capable communication network already described can also include further means which allow the execution of expedient or preferred embodiments of the method according to the invention individually or in any combination.
  • the invention is explained in more detail below with reference to the description of an exemplary embodiment in the drawing. Show it :
  • Fig. 1 is a schematic representation of an industrial plant
  • FIG. 2 shows a schematic representation of the industrial communication network shown in FIG. 1, in which a data stream is transmitted according to a first embodiment variant of the method according to the invention
  • FIG. 3 shows a schematic illustration of the industrial communication network shown in FIG. 1, in which a data stream is transmitted in accordance with a second embodiment variant of the method according to the invention.
  • FIG. 4 shows a flow chart illustrating the implementation of the steps of the method according to the invention.
  • Fig. 1 shows a schematic representation of an exemplary, simple industrial real-time-capable communication network 1.
  • messages NWM are transmitted cyclically in a data stream in a conventional manner from a transmitter to a receiver.
  • the communication network 1 comprises as a transmitter a message source 10, which is also referred to as a publisher.
  • the message source 10 is designed to generate messages NWM and to send them out cyclically.
  • Each of the messages NWM sent out in the data stream by the message source 10 comprises a number of data records DS.
  • the cyclical transmission of a plurality of messages NWM is referred to as a data stream.
  • the number of data records DS in a message NWM can in principle be arbitrary, ie 2 or greater. in the In the present exemplary embodiment, it is assumed that a respective message NWM comprises four different data records “1”, “2”, “3” and “4”, which for the sake of simplicity are referred to below as DS1, ..., DS4.
  • the communication network 1 comprises as a recipient of the messages NWM, for example, four message sinks 15, 16, 17,
  • the number of message sinks can also be greater or less than four.
  • the message sinks 15, 16, 17, 18 are designed to receive the messages NWM contained in the data stream and to process the data records DS contained in the messages NWM or only part of the data records DS.
  • the message sinks 15, 16, 17, 18 are not directly connected to the message source 10. Rather, a number of network components 12, 13, 14 is provided as a switching or forwarding component that connects the message source 10 and the messages lower 15, 16, 17, 18 in the communication network 1.
  • the network components 12, 13, 14 are e.g. Bridges. Via the network components 12,
  • the network component 12 is connected to the message source 10.
  • the network components 13 and 14 are also connected to the network component 12.
  • the message sink 15 is connected to the network component 13.
  • the message sinks 16, 17, 18 are in turn connected to the network component 14 in the downstream direction of the data stream.
  • the cyclical transmission of the NWM messages in the communication network 1 takes place in a communication according to the OPC UA PubSub standard.
  • the data records DS1, ..., DS4 are determined according to a model not shown by the message source 10, packed into the message NWM and as a data stream, ie as a cyclic sequence of messages NWM with all data records DS1, ..., DS4, sent out.
  • the messages NWM are transmitted from the message source 10 as broadcast messages to the network component 12 in a cyclical sequence.
  • the network component 12 in turn transmits the messages NWM to the network components 13, 14.
  • the network components 13 and 14 in turn transmit the messages NWM to the message sinks 15 or 16, 17, 18.
  • the messages NWM are forwarded unchanged from the network components 12, 13, 14 to the components connected downstream.
  • the message sinks 15, 16, 17, 18 take the messages from NWM and check which data records DS are subscribed to by them, ie are to be received.
  • the message sink 15 has, for example, subscribed to the data record DS3, which is symbolized by the number "3" in the message sink 15.
  • the message sink 16 has subscribed to the data record DS1 (symbolized by "1").
  • the message sink 17 has subscribed to the data record DS2 (symbolized by “2”).
  • the message sink 18 has subscribed to the data record DS4 (symbolized by “4”). Although each message sink has only subscribed to one data record in the selected exemplary embodiment, at least some of the message sinks could also have subscribed to several or all of the data records. In the respective message sink 15, 16, 17, 18, the data records not subscribed to are discarded. This means that the message sink 15 discards the data records DS1, DS2 and DS4, the message sink 16 discards the data records DS2, DS3, DS4, the message sink 17 discards the data sets. ze DS1, DS3, DS4, and the message sink 18 discards the data records DS1, DS2, DS3.
  • the communication network 1 is subjected to a high data load.
  • Fig. 2 shows the procedure according to the invention, which allows the cyclical transmission of the data records subscribed to by the message sinks 15, 16, 17, 18 with a reduced network load.
  • the topology of the communication network 1 shown in FIG. 2 corresponds to the topology described in connection with FIG. 1.
  • the communication network 1 shown in Fig. 2 also uses communication via OPC UA PubSub, i.e. the Nachrich tenario 10 sends in a cyclical sequence messages with data records contained therein as a data stream.
  • the data records are grouped in different messages NWM1, NWM2, which are sent out by the message source 10 in associated different data streams.
  • NWM1, NWM2 which are sent out by the message source 10 in associated different data streams.
  • there is a grouping in two different messages with the number of different messages also being greater than two.
  • NWM2 takes place depending on the topology of the communication network 1 and the data records subscribed to by the network sinks 15, 16, 17, 18. As a result, the network load can be reduced.
  • the configuration of the communication network 1 takes place once - provided there are no changes to the topology of the communication network 1 by adding or removing components and provided no changes are made to the subscriptions made by the network sinks 15, 16, 17, 18 , e.g. when commissioning communication network 1. The implementation of this procedure is described below.
  • a first step S1 the network topology of the communication network 1 is determined to determine the physical arrangement of the components connected to one another via a transmission medium (line or wireless communication link), namely the message source 10, the at least one network component 12 , 13, 14 and the at least one message sink 15, 16, 17, 18.
  • a transmission medium line or wireless communication link
  • the network topology can be determined using the TSN (Time Sensitive Network ) are based.
  • a next step S2 it is determined which or which of the data records a respective one of the message channels 15, 16, 17, 18 would like to receive, i.e. which or which of the data records DS1, ..., DS4 is subscribed to by a respective message sink 15, 16, 17, 18.
  • an understanding of the content required by the message sinks 15, 16, 17, 18 is determined.
  • the message sink 15 has subscribed to the data record DS3, the message sink DS1, the message sink 17 to the data record DS2 and the message sink 18 to the data record DS4.
  • the configuration of the message source or message sinks can e.g. by means of method calls in the OPC UA server of the device or by means of a configuration file (bin file). This makes it possible to determine which device publishes or subscribes to which data records.
  • Steps S1 and S2 can be carried out once by a higher-level processing unit (not shown) or after each change in the network topology due to the addition or removal of components.
  • the superordinate arithmetic unit can, as part of step S2, For example, actively query the data sets required by the message sinks 15, 16, 17, 18 (ie subscribed to) or receive the information from them as part of an initiation step. Alternatively, the information about which data records DS1, ..., DS4 are to be received by a respective message sink 15, 16, 17, 18 from the corresponding processing units of the network components 12, 13,
  • a third step S3 the respective data paths are determined from the message source 10 to the respective message sinks for the transmission of the data records DS1,..., DS4 to which a respective message sink 15, 16, 17, 18 subscribes.
  • a respective data path is determined for each message sink and the data record or records to which it is subscribed.
  • step S4 the data records DS1, ..., DS4 are grouped into several different messages based on the data paths determined.
  • the communication network 1 is in operation, several different messages NWM1, NWM2 are sent out cyclically in a respective data stream along different data paths or data path sections.
  • This step can, if necessary, require feedback on the message source (publisher) and / or message sinks (subscriber). That is, their configuration is adjusted according to the optimization described.
  • the data path for the data record DS3 to which the message sink 15 subscribes to runs from the message source 10 via the network component 12 and the network component 13 to the message sink 15.
  • the message sinks 16, 17, 18 each have subscribed to different data sets (DS1 or DS2 or DS4) that are different from the message sink 15.
  • all of the message sinks 16, 17, 18 are connected to the network component 14, which in turn is connected to the network component 12 in the upstream direction.
  • the data records DS1, DS2, DS4 there are therefore common data path sections between the message source 10 and the network component 12 and between the network component 12 and the network component 14.
  • the data record DS3 is grouped in the message NWM1 and the data records DS1, DS2, DS4 are grouped in the message NWM2, which is different therefrom.
  • the message NWM1 is sent out on a first data path (comprising message source 10, network component 12, network component 13, message sink 15) and the message NWM2 on a second data path (comprising message source 10, network component 12, network component 14).
  • first data path comprising message source 10, network component 12, network component 13, message sink 15
  • the message NWM2 on a second data path (comprising message source 10, network component 12, network component 14).
  • the message sinks 16, 17, 18 each receive the message NWM2, which includes the three data records DS1, DS2, DS4. Depending on their respective subscription, they use the data set DS1 or DS2 or DS4 intended for them and discard the other data sets in a known manner.
  • the creation of the data paths can be implemented using common mechanisms such as forwarding tables or filter mechanisms.
  • a filtering can take place, for example, on the basis of the data record identifiers contained in the data records DS1, ..., DS4.
  • the data record identifiers are then processed in filters of the network components 12, 13, 14 as filter criteria.
  • the filters can be implemented in software or in hardware. For example, a corresponding number of filters can match the number of messages corresponds to be provided in the respective network components. In the embodiment shown in FIG. 2, it is sufficient if the filters are only provided in the network component 12 in which the two data streams that cyclically send out the different messages NWM1, NWM2 branch.
  • the messages NWM1, NWM2 can alternatively also be grouped on the basis of identifiers of the network components, the data records to which network sinks connected to a specific network component are subscribed to are grouped in one message. This is the case in the present exemplary embodiment according to FIGS. 2 and 3.
  • the device names can provide data on a particular location, e.g. of a machine. This leads to a lower network load or to a lower consumption of resources in the higher-level network.
  • FIG. 3 shows an exemplary embodiment based on the same network topology, in which further filtering of the message NWM2 is provided in the network component 14 in order to reduce the network load.
  • This filtering enables the content contained in the message NWM2 to be reduced, so that only those data records to which the message sinks 16, 17, 18 subscribed were forwarded to them.
  • the filtering can take place based on the previously determined network topology and knowledge of the data records required by the message sinks.
  • a filter can be determined for the network component 14, according to which the network component 14 only forwards the required data records DS1, DS2, DS4 in a "filtered" message NWM2 F to the directly connected message sinks 16, 17, 18 from the news sink 16 data records DS2, DS4 not required or the data records DS1, DS4 not required by the message sink 17 or the data records DS1, DS2 not required by the message sink 18 are not carried out.
  • the filtering can be carried out in a simple manner by means of the data record identifier already mentioned. The data record identifier is then processed as a filter criterion in filters set up accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Computing Systems (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne un procédé de configuration d'un réseau de communication industriel pouvant se faire en temps réel, destiné à la transmission cyclique de messages (NWM1, NWM2) qui comprennent respectivement un ou plusieurs ensembles de données (DS1, ... , DS4). Le réseau de communication (1) présente une source de messages (10) permettant la génération et l'envoi des messages (NWM1, NWM2), au moins un collecteur de messages (16, 17 18) permettant la réception des messages (NWM1, NWM2) ainsi qu'au moins un composant de réseau (12, 14) qui transfère les messages (NWM1, NWM2) de la source de messages aux collecteurs de messages. La configuration comprend la détermination (S1) d'une topologie de réseau du réseau de communication (1) permettant de définir la disposition physique de la source de messages dudit composant de réseau et dudit collecteur de messages, la source de messages étant reliée ensemble par un moyen de transmission. Selon l'invention, on détermine (S2) quel ou quels ensemble(s) de données dans le flux de données pourrai(en)t être reçus par un des collecteurs de messages respectif. En outre, on définit (S3) les chemins de données respectifs de la source de messages (10) vers les collecteurs de messages respectifs destinés à la transmission des ensembles de données souscrits par un des collecteurs de messages respectifs. Le groupement (S4) des ensembles de données s'effectue ensuite dans plusieurs messages différents (NWM1, NWM2) sur la base des chemins de données déterminés, ce qui effectue, lors du fonctionnement du réseau de communication (1), un envoi cyclique de plusieurs messages différents (NWM1, NWM2) dans un flux de données respectif le long de chemins de données différents.
PCT/EP2019/061832 2019-05-08 2019-05-08 Procédé de configuration d'un réseau de communication destiné à la transmission cyclique de messages WO2020224774A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2019/061832 WO2020224774A1 (fr) 2019-05-08 2019-05-08 Procédé de configuration d'un réseau de communication destiné à la transmission cyclique de messages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2019/061832 WO2020224774A1 (fr) 2019-05-08 2019-05-08 Procédé de configuration d'un réseau de communication destiné à la transmission cyclique de messages

Publications (1)

Publication Number Publication Date
WO2020224774A1 true WO2020224774A1 (fr) 2020-11-12

Family

ID=66685560

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/061832 WO2020224774A1 (fr) 2019-05-08 2019-05-08 Procédé de configuration d'un réseau de communication destiné à la transmission cyclique de messages

Country Status (1)

Country Link
WO (1) WO2020224774A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2355403A1 (fr) * 2010-02-01 2011-08-10 Thales Nederland B.V. Procédé de perturbation de données dans un réseau étendu ad hoc mobile
EP2991320A1 (fr) * 2014-08-25 2016-03-02 Siemens Aktiengesellschaft Procédé de détermination de noms d'appareils de communication dans un système d'automatisation industriel, unité de diagnostic et unité de mise à disposition de données de diagnostic

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2355403A1 (fr) * 2010-02-01 2011-08-10 Thales Nederland B.V. Procédé de perturbation de données dans un réseau étendu ad hoc mobile
EP2991320A1 (fr) * 2014-08-25 2016-03-02 Siemens Aktiengesellschaft Procédé de détermination de noms d'appareils de communication dans un système d'automatisation industriel, unité de diagnostic et unité de mise à disposition de données de diagnostic

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
GUTIERREZ MARINA ET AL: "Self-configuration of IEEE 802.1 TSN networks", 2017 22ND IEEE INTERNATIONAL CONFERENCE ON EMERGING TECHNOLOGIES AND FACTORY AUTOMATION (ETFA), IEEE, 12 September 2017 (2017-09-12), pages 1 - 8, XP033292931, DOI: 10.1109/ETFA.2017.8247597 *
OPC FOPUNDATION: "OPC Unified Architecture Specification Part 14: PubSub Release 1.04", 6 February 2018 (2018-02-06), XP055522628, Retrieved from the Internet <URL:https://opcfoundation.org/developer-tools/specifications-unified-architecture/part-14-pubsub> [retrieved on 20181109] *
PFROMMER JULIUS ET AL: "Hybrid OPC UA and DDS: Combining architectural styles for the industrial internet", 2016 IEEE WORLD CONFERENCE ON FACTORY COMMUNICATION SYSTEMS (WFCS), IEEE, 3 May 2016 (2016-05-03), pages 1 - 7, XP032915526, DOI: 10.1109/WFCS.2016.7496515 *

Similar Documents

Publication Publication Date Title
DE602005001815T2 (de) Verfahren zur effizienten Mehrfachverbreitung von Inhalten in einem Peer-to-peer Netzwerk
DE60317925T2 (de) Steuerung von netzwerkverkehr in einer peer-to-peer umgebung
DE112011103561T5 (de) Netzwerkprozessor und Verfahren zum Beschleunigen der Datenpaket-Syntaxanalyse
DE60132360T2 (de) Verwaltung von netzwerk-verkehr durch anwendung einer hashfunktion
DE10143356A1 (de) Akzeptanz-Filter
DE102019210229A1 (de) Verfahren und Vorrichtung zur Analyse dienste-orientierter Kommunikation
EP3871377B1 (fr) Noeud de distribution, réseau d&#39;automatisation et procédé de transmission de télégrammes
DE60303384T2 (de) Lastausgleich in datennetzwerken
EP3228036B1 (fr) Procédé et dispositif de commande pour la transmission de données relatives à la sécurité dans un véhicule automobile au moyen d&#39;une norme éthernet
DE19821004C2 (de) Sequenzgenerator
DE102018001574A1 (de) Master-Slave Bussystem und Verfahren zum Betrieb eines Bussystems
EP2119124A2 (fr) Composant de réseau, procédé de fonctionnement d&#39;un tel composant de réseau, système d&#39;automatisation pourvu d&#39;un tel composant de réseau, procédé de transmission de données dans un système d&#39;automatisation au moyen d&#39;un tel composant de réseau, programme inform
EP3942777B1 (fr) Configuration d&#39;un réseau de communication pour la transmission cyclique de messages
WO2020224774A1 (fr) Procédé de configuration d&#39;un réseau de communication destiné à la transmission cyclique de messages
DE102016211189A1 (de) Weiterleitungsvorrichtung
DE102019125545B3 (de) Datenübertragungsverfahren, segment-telegramm und automatisierungskommunikationsnetzwerk
DE102021122686A1 (de) Verfahren zum betreiben eines netzwerks
DE102019210225A1 (de) Verfahren und Vorrichtung zur Analyse dienste-orientierter Kommunikation
EP1527578A1 (fr) Communication dans un reseau de donnees
EP3697034A1 (fr) Procédé de transmission des données, appareil, programme informatique et support lisible par ordinateur
EP3518470A1 (fr) Procédé de communication de données dans un dispositif de réseau à base d&#39;ethernet, en particulier industriel, destiné à la mise en uvre dudit procédé, programme informatique ainsi que support lisible par ordinateur
DE102010042601A1 (de) Netzwerk
DE102020210193B3 (de) Verfahren und System zum Absichern einer Datenkommunikation innerhalb eines Netzwerks
DE102020126936B4 (de) Verfahren zur Übermittlung von Daten in einem digitalen Netzwrk
WO2022253589A1 (fr) Procédé de configuration basé sur le temps de vol d&#39;une transmission de signal interne à un dispositif dans un dispositif de commande, et dispositif de commande et véhicule à moteur pouvant ainsi être actionnés

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19727833

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19727833

Country of ref document: EP

Kind code of ref document: A1