WO2024068163A1 - Système de formation d'un complexe de dispositifs sur site et dispositif sur site - Google Patents

Système de formation d'un complexe de dispositifs sur site et dispositif sur site Download PDF

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Publication number
WO2024068163A1
WO2024068163A1 PCT/EP2023/073661 EP2023073661W WO2024068163A1 WO 2024068163 A1 WO2024068163 A1 WO 2024068163A1 EP 2023073661 W EP2023073661 W EP 2023073661W WO 2024068163 A1 WO2024068163 A1 WO 2024068163A1
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WO
WIPO (PCT)
Prior art keywords
field devices
field device
field
designed
device complex
Prior art date
Application number
PCT/EP2023/073661
Other languages
German (de)
English (en)
Inventor
Stefan Rolf
Original Assignee
Imko Micromodultechnik Gmbh
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 Imko Micromodultechnik Gmbh filed Critical Imko Micromodultechnik Gmbh
Publication of WO2024068163A1 publication Critical patent/WO2024068163A1/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
    • G06F9/5061—Partitioning or combining of resources
    • G06F9/5072—Grid computing
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G05B19/052—Linking several PLC's
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
    • G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
    • G06F9/5061—Partitioning or combining of resources
    • G06F9/5066—Algorithms for mapping a plurality of inter-dependent sub-tasks onto a plurality of physical CPUs

Definitions

  • the invention relates to a system comprising at least two field devices of automation technology.
  • the invention further comprises a field device which is designed for use in the system according to the invention.
  • Field devices that are used in industrial systems are already known from the prior art. Field devices are often used in process automation technology as well as in production automation technology. In principle, all devices that are used close to the process and that provide or process process-relevant information are referred to as field devices. Field devices are used to record and/or influence process variables. Measuring devices or sensors are used to record process variables. These are used, for example, for pressure and temperature measurement, conductivity measurement, flow measurement, pH measurement, level measurement, etc. and record the corresponding process variables pressure, temperature, conductivity, pH value, level, flow, etc. Actuators are used to influence process variables. These are, for example, pumps or valves that can influence the flow of a liquid in a pipe or the level in a container. In addition to the previously mentioned measuring devices and actuators, field devices also include remote I/Os, radio adapters or, in general, devices that are arranged at the field level.
  • field devices are usually connected to higher-level units via communication networks such as field buses (Profibus®, Foundation® Fieldbus, HART®, etc.).
  • the higher-level units are usually control systems (DCS) or control units, such as a PLC (programmable logic controller).
  • DCS control systems
  • PLC programmable logic controller
  • the higher-level units are used, among other things, for process control, process visualization, process monitoring and for commissioning the field devices.
  • the measured values recorded by the field devices in particular by sensors, are transmitted to one (or possibly several) higher-level units via the respective bus system.
  • data transmission from the higher-level unit via the bus system to the field devices, in particular for the configuration and parameterization of field devices and for the control of actuators.
  • Such a control unit is programmed by reading the values of the sensors contained in the field devices (e.g. temperature/fill level, etc.) and/or actuators (e.g. output level of a control valve, open/closed state of a butterfly valve, etc.) and controlling the actuators in such a way that the desired process parameters (registered by the sensors as sensor measurements) are obtained.
  • Simple time-based control processes can also be specified via the programming of the control unit.
  • the invention is based on the object of replacing a control unit in a system network with a simple and more cost-effective system.
  • a system which comprises at least two field devices of automation technology, wherein each of the field devices has a memory unit and a logic unit, wherein the corresponding logic unit has a software component, wherein the field devices are in communication with one another and form a network such that both field devices are arranged hierarchically identically, and wherein the logic units of the field devices are designed such that the field devices interact as a field device complex and that the logic units execute the respective software components together as individual higher-level software of the field device complex.
  • the system according to the invention makes it possible to carry out functionalities and software in a field device complex that are limited by individual field devices resources would not be executable. This is achieved by the field devices bundling and sharing their resources (on the one hand, computing power through logic units and software components, but also, for example, a shared memory) in a field device complex or swarm network. This means that the field devices of a process engineering plant form a network of interconnected computing units.
  • At least two field devices are required for the field device complex.
  • the hardware or resources available for the common software thus grow with the number of field devices located in the field device complex.
  • the technical implementation of the invention is made possible by the progressive development of semiconductor technology and electronics. Microcontrollers and memories, for example, are becoming increasingly more powerful, require less energy and make it possible to expand the functionalities of field devices.
  • the field devices are integrated into a communication network. This is advantageously designed to be wired and based on a modern fieldbus standard (e.g. Foundation Fieldbus or Profibus) or is Ethernet-based, since wired networks enable high data throughput. Wireless network types are also conceivable if they enable a sufficiently high bandwidth to enable the communication between the field devices required to operate the field device complex.
  • a modern fieldbus standard e.g. Foundation Fieldbus or Profibus
  • Ethernet-based since wired networks enable high data throughput.
  • Wireless network types are also conceivable if they enable a sufficiently high bandwidth to enable the communication between the field devices required to operate the field device complex.
  • the system has an operating unit, which operating unit is part of the network.
  • the operating unit is, for example, a laptop or PC with a corresponding interface for the communication network and software for operating the field device complex.
  • Mobile operating units for example in the sense of the “Field Xpert” or mobile devices sold by the company “Endress+Hauser”, can also be used within the scope of the invention.
  • the field device complex is connected to a cloud-based platform, “cloud” for short.
  • cloud consists of one or more server systems and can be contacted via the Internet.
  • One or more applications run on the cloud and can be used to process data, control systems, etc.
  • the cloud, or an application running on it can then be used as an operating unit after the field device complex has been logged on to the cloud.
  • the higher-level software is designed to control communication with the external control unit in such a way that the field device complex can be contacted by the control unit using a common network address. Commands and queries can then be directed directly to the field device complex or the higher-level software using this network address.
  • this can be a network address that is already assigned to a field device. However, it can also be an independent network address.
  • An advantageous embodiment of the system provides that the higher-level software is designed to make the field device complex of the operating unit appear as a programmable control unit.
  • the field device complex thus fulfills the tasks and functionalities of a control unit.
  • the operating unit is designed to write parameters and/or algorithms into the higher-level software, which parameters and/or algorithms define the functionalities of the field device complex and the interaction of the field devices in the field device complex. If, for example, the field device complex is to serve as a control unit, it can be defined, on the one hand, how the field device complex behaves inside, i.e. which field devices in the complex are the The task of sending control commands, which field devices carry out individual arithmetic operations, etc.
  • the field device complex behaves externally (e.g. towards the control unit), for example which field device is responsible for external communication, etc.
  • An advantageous embodiment of the system provides that at least one of the field devices is designed to record a physical quantity of a process engineering process and the other of the field devices is designed to influence a physical quantity of a process engineering process, the higher-level software being designed to establish a control loop with the two field devices.
  • the higher-level software executed by the field device complex therefore acts on the field devices inside the field device complex as a control unit.
  • other functions of a control unit e.g. a PLC
  • the system therefore makes it possible to do without a control unit in a system network.
  • the higher-level software is designed to store at least parts of the software components of the other field devices on the field devices.
  • the field device complex can thus be protected against failures. Alternatively or additionally, backups are also possible if the field device complex assumes an unstable state.
  • An advantageous embodiment of the system provides that the higher-level software is designed to compensate for a failure of one of the field devices by the remaining field devices of the field device complex jointly executing the software component of the further field device.
  • individual software components will be installed on as many other components as possible Field devices are stored so that the failure of more than one field device can be compensated for.
  • the higher-level software is designed to store at least the parts of the software components of the other field devices on the field devices in a RAID method.
  • redundancies are specifically created so that if individual field devices fail, the field device complex as a whole retains its integrity and functionality and the original state can be restored after replacing the failed field device with a rebuild.
  • the object is further achieved by a field device which is designed for use in the system according to the invention, the field device having a memory unit and a logic unit, the corresponding logic unit having a software component, and the logic units being designed to have logic units of other field devices to cooperate.
  • the field device having a memory unit and a logic unit, the corresponding logic unit having a software component, and the logic units being designed to have logic units of other field devices to cooperate. Examples of field devices that can be used in the sense of the invention have already been listed in the introductory part of the description.
  • Fig. 1 two examples of an industrial communication network with a control unit, as known from the prior art.
  • Fig. 2 an embodiment of the system according to the invention.
  • Fig. 1 shows a schematic of an automation network as it is known from the prior art.
  • the field devices are devices for recording one or more process variables of a process engineering process (by means of one or more sensor units of the corresponding field device) or devices for influencing one or more process variables of a process engineering process (by means of one or more actuator units of the corresponding field device).
  • the field devices FG', FG", FGn can, for example, be connected individually (see Fig. 1 (a)) to the control unit ST, or connected to the control unit ST in a bus arrangement (see Fig. 1 (b)).
  • Fig. 1 (a) the field devices FG', FG", FGn can, for example, be connected individually (see Fig. 1 (a)) to the control unit ST, or connected to the control unit ST in a bus arrangement (see Fig. 1 (b)).
  • Fig. 1 (b) a bus arrangement
  • the control unit ST takes over regulation, monitoring and control tasks for the field device arrangement. For example, the control unit records measured values from the sensors of the field devices FG', FG", ..., FGn, compares these with reference values and then sends control values to actuators of the field devices FG', FG", ..., FGn.
  • the control unit ST is programmed using an operating unit BE, for example a PC, laptop or mobile device, which is in communication with the control unit.
  • the internal communication of the control unit ST with the field devices FG', FG", ..., FGn, the operating sequence of the control unit ST and the external communication of the control unit ST with the operating unit BE are controlled by means of software SW that is implemented and runs on the control unit ST .
  • Fig. 2 a system is shown which enables the same functionalities as the prior art shown in Fig. 1, but does not allow a separate control unit ST.
  • At least two field devices FG', FG" (expandable to an n-fold number of field devices FGn) are brought into communication connection.
  • Each of the field devices FG', FG" has a memory unit SP', SP" (each containing one or more memory modules and corresponding control electronics) and a logic unit LE', LE” (e.g. each containing one or more microprocessors, main memory, etc.) on.
  • Fig. 2 (a) shows the physical configuration and interconnection of the field devices FG', FG".
  • the logic units LE', LE” are designed in such a way that they work together. Specifically, when the field devices FG 1 , FG" first come into contact, they detect the software components SW 1 , SW" implemented in the other field devices FG 1 , FG". The logic units LE 1 , LE” then execute the software components SW 1 , SW" together. A higher-level software SWko is therefore executed together, which is formed by the individual software components SW 1 , SW".
  • the field devices FG 1 , FG" thus form a field device complex KO, or swarm network, and pool their resources to execute the higher-level software SWko.
  • Logically see Fig. 2 (b)
  • the individual subcomponents of the field devices FG 1 , FG" form common components:
  • the logic units LE 1 , LE” of the individual field devices FG 1 , FG" work together as a common logic unit LEko of the field device complex.
  • the storage units SP 1 , SP" of the field devices also work together as a common storage unit SPko of the field device complex.
  • the higher-level software SWko executed on the field device complex KO allows the field device complex KO to act as a control unit both internally and externally.
  • the field device complex KO can perform control functions. It can also be programmed using an operating unit BE, which is connected to one of the field devices FG 1 , FG".
  • the field device complex KO can be addressed by the operating unit BE using a common network address. The operating unit BE therefore does not have to be connected to all field devices FG 1 , FG" of the field device complex KO in order to address and, if necessary, program the field device complex KO or the control unit formed by it.
  • the operating unit BE does not have to be permanently or permanently connected to the field device complex - as shown - but only when operation is required. It can be provided that the software components SW', SW" of the other field devices are stored on the field devices FG', FG". In this way, the field device complex KO can be protected against failures of individual field devices FG', FG", for example using a RAID process - the remaining field devices FG', FG" of the field device complex KO then jointly execute the software component of the failed field device of the other field device. Alternatively or additionally, backups are also possible if the field device complex KO assumes an unstable state.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mathematical Physics (AREA)
  • Manufacturing & Machinery (AREA)
  • Quality & Reliability (AREA)
  • Programmable Controllers (AREA)

Abstract

L'invention concerne un système comprenant au moins deux dispositifs sur site de technologie d'automatisation (FG', FG''). Chacun des dispositifs sur site (FG', FG'') comprend une unité de stockage (SP', SP'') et une unité logique (LE', LE'') ; l'unité logique correspondante (LE', LE'') comporte un composant logiciel (SW', SW'') ; les dispositifs sur site (FG', FG'') sont en liaison de communication l'un avec l'autre et forment un réseau de telle sorte que les deux dispositifs sur site (FG', FG'') sont disposés d'une manière hiérarchiquement identique ; et les unités logiques (LE', LE'') des dispositifs sur site (FG', FG'') sont conçues de telle sorte que les dispositifs sur site (FG', FG'') interagissent en tant que complexe de dispositifs sur site (KO) et que les unités logiques (LE', LE'') exécutent les composants logiciels respectifs (SW', SW'') conjointement en tant que logiciel de niveau supérieur unique (SWko) du complexe de dispositifs sur site (KO). L'invention concerne également un dispositif sur site (FG') conçu pour être utilisé dans le système selon l'invention.
PCT/EP2023/073661 2022-09-30 2023-08-29 Système de formation d'un complexe de dispositifs sur site et dispositif sur site WO2024068163A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022125330.9A DE102022125330A1 (de) 2022-09-30 2022-09-30 System zum Bilden eines Feldgerätekomplexes und Feldgerät
DE102022125330.9 2022-09-30

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WO2024068163A1 true WO2024068163A1 (fr) 2024-04-04

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020013629A1 (en) * 1996-04-12 2002-01-31 Mark Nixon Process control system using a process control strategy distributed among multiple control elements
US20090276060A1 (en) * 2008-05-05 2009-11-05 Siemens Corporate Research, Inc. Mobile Function Block for a PLC Based Distributed Control System

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10032774A1 (de) 2000-07-06 2002-01-17 Endress Hauser Gmbh Co Feldgerät
DE102008010484A1 (de) 2008-02-21 2009-08-27 Abb Ag System und Verfahren zur gerichteten Bereitstellung und Installation von gerätespezifischen Funktionalitäten, insbesondere für Feldgeräte

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020013629A1 (en) * 1996-04-12 2002-01-31 Mark Nixon Process control system using a process control strategy distributed among multiple control elements
US20090276060A1 (en) * 2008-05-05 2009-11-05 Siemens Corporate Research, Inc. Mobile Function Block for a PLC Based Distributed Control System

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Publication number Publication date
DE102022125330A1 (de) 2024-04-04

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