EP2100198A1 - Control system, and method for configuring a control system - Google Patents

Control system, and method for configuring a control system

Info

Publication number
EP2100198A1
EP2100198A1 EP07847979A EP07847979A EP2100198A1 EP 2100198 A1 EP2100198 A1 EP 2100198A1 EP 07847979 A EP07847979 A EP 07847979A EP 07847979 A EP07847979 A EP 07847979A EP 2100198 A1 EP2100198 A1 EP 2100198A1
Authority
EP
European Patent Office
Prior art keywords
service
control system
process
flexible
sub
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.)
Withdrawn
Application number
EP07847979A
Other languages
German (de)
French (fr)
Inventor
Armando Walter Colombo
Martin Feike
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric Automation GmbH
Original Assignee
Schneider Electric Automation 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
Priority to DE200610058282 priority Critical patent/DE102006058282A1/en
Application filed by Schneider Electric Automation GmbH filed Critical Schneider Electric Automation GmbH
Priority to PCT/EP2007/063526 priority patent/WO2008068333A1/en
Publication of EP2100198A1 publication Critical patent/EP2100198A1/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00Arrangements for software engineering
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/20Pc systems
    • G05B2219/23Pc programming
    • G05B2219/23261Use control template library
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/30Nc systems
    • G05B2219/33Director till display
    • G05B2219/33055Holon, agent executes task and cooperates with other, distributed control
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/30Nc systems
    • G05B2219/33Director till display
    • G05B2219/33063Generic coordination, master agent to data manager agent to tasks to active agent

Abstract

The invention relates to a control system with service-oriented architecture for a flexible production system, comprising decentralized, distributed devices coupled together via a data communication system for the exchange of data, said devices having at least one software component and electrical and/or mechanical components. Said invention also relates to a method based on the development and implementation of service-oriented software components as component parts of a service-oriented architecture for decentralized, distributed devices in flexible production systems. In order to achieve the aim of making the control system configurable in a low-cost manner in the event of changes in the production system or different production scenarios, it is proposed that the software component is derived from a process or subprocess of a PPR model of the flexible production system, wherein each software component has a control logic derived from the process or subprocess, a flexible interface for access to resources represented in the PPR model, and a communications interface for integration into the service-oriented architecture.

Description

 Control system and method for configuring a control system

The invention relates to a control system with service-oriented architecture for a flexible production plant, comprising a data communication system for the exchange of data coupled, decentralized, distributed devices with at least one software component and electrical and / or mechanical components as well as a A method of configuring a control system by developing and implementing service oriented software components as part of a service oriented architecture for distributed distributed devices in flexible manufacturing facilities.

In the future of automation technology, there is a change from central controls to small intelligent electronic devices or components that are to be used in flexible production systems. This technology requires a new engineering procedure.

From the area of ERP systems (Enterprise Resource Planning Systems), the approach of a service-oriented architecture has been very successfully established in order to connect different services for IT support of different business processes. An example is in Lalanda P .; Bellissard, L; Balter, R .: "Asynchronous mediation for integrating business and operational processes"; IEEE; Jan.-Feb. 2006; Internet Computing, Volume: 10, Issue: 1, pp. 56-64, this approach is not yet in the Control and automation technology known.

Furthermore, an important trend in the design of new products and their production plant planning is the integrated holistic consideration of the product life cycle, which is eg. At present, many companies are working under the heading "digital factory." In this context, the linking of the central types of product, process and resource (PPR model) has gained acceptance as a data model. Production plants - as with products - must also be considered from the aspect of the life cycle, otherwise no flexibility of the plant can be guaranteed.

Here are no longer fixed key figures of the plant in focus, such. As a specific application, but the ability of a production plant to adjust to different situations. This capability is ensured by flexible, reconfigurable components.

Different production plants for different production scenarios can not be developed on real plants. Building such facilities to investigate these production scenarios is too costly. Therefore a virtual development environment is necessary. It is a software program with which products, processes and resources of the production plant can be virtually mapped. With such a development environment, production facilities can be virtually tested.

Various research objects (see below) investigate the possibility of applying service-oriented architecture to decentralized, distributed devices and components in flexible production plants, although so far a concrete solution for the development of service modules or web service-based technologies could not be specified.

The European Integrated Project SOCRADES will develop methods, technologies and tools to model, design and implement networked systems provided by intelligent, embedded devices.

The aim of this project (SOCRADES) is the development of so-called "middleware" technologies, ie application-independent technologies that offer services to mediate between applications. based architectures (SOA) and include wired and wireless network technologies as well as having an open interface. Furthermore, such software components should contain device-specific functionalities.

An engineering method for developing a service-oriented architecture for decentralized, distributed components in flexible production systems and a structure of the software components as a service-oriented module is not yet known.

Based on this, the object of the present invention is to refine a control system and a method for configuring a control system in such a way that it can be configured with little effort in the event of changes in the production plant or different production scenarios

The object is achieved by a control system according to the invention that the software component is derived from a process or sub-process of a PPR model of the flexible production system, each software component derived from the process or sub-process control logic, a flexible interface for the Having access to resources represented in the PPR model as well as a communication interface for integration into the service-oriented architecture.

Furthermore, the object is achieved by a method according to the invention in that the following method steps are carried out:

Creating a PPR model of the flexible production plant taking into account product, process and resource information, decomposing a production process contained in the PPR model into sub-processes,

Development of the software components based on the sub-processes, each of the software components having control logic derived from the sub-process, a flexible interface for accessing resources represented in the PPR model, and a communications interface for integration into the service-oriented architecture , Presentation and analysis of different production scenarios as Client-server architecture,

Implementation of the software components and the associated client-server architecture in the control system.

Preferably, the method steps are carried out in a virtual development environment.

The control logic of a standardized software component is used for one production process, such. B. developed a clamping sequence for fixing sheets to be welded. For plant design, in practice, the decomposition into sub-processes has been established, which is used as a guide for a control program. A component-based engineering approach is therefore expediently geared to the manufacturing process. This engineering process provides the functional elements to professionally use the service-oriented architecture.

For processing a process, various resources such. As actuators, sensors, controls and electrical and / or mechanical components but also information and people necessary. The resources themselves are represented as a virtual model in such a way that their physical behavior is reproduced as expediently as possible. In the development of the software described above, also referred to as services, the reference to the resources is determined by the PPR model.

The services as part of a combination of mechatronics, communication and intelligence are integrated into an overall concept, which assumes all control tasks. In the case of a service-oriented architecture, they are preferably implemented as a web service.

In a further process step, a model of a life cycle for the production plant is developed based on the standardized software components. It should be noted that it is not only for a specific target scenario that a draft is but that changing framework conditions are integrated into the planning approach.

Another method step is characterized by the fact that different production scenarios are displayed as a client-server architecture and analyzed virtually. The aim here is that in practice no reprogramming of the production plant must be carried out if the general conditions change. In contrast to the conventional approach, in the service-oriented architecture used here, different variants can simply be generated by a new client-server architecture.

Another preferred method step provides that the developed software components and the associated client-server architecture are implemented at different aggregation levels.

This ensures that a stepless transition from a central control to decentralized control components can be performed. The web services can in turn call up further web services. In a further step, preferably a library of generic web services is to be generated.

Further details, features and advantages of the invention will become apparent not only from the claims, the features to be taken these features - alone and / or in combination - but also from the following description of a drawing to be taken preferred embodiment.

Show it:

1 shows a service-oriented architecture of a control system for a flexible production plant,

2 shows a process graph of a virtual model of the production plant and web services derived therefrom; 3 is a flowchart for creating a model of a life cycle for the production plant and

Fig. 4: schematic representation of a client-server architecture at different aggregation levels.

1 shows a schematic illustration of a control system 10 in service-oriented architecture for decentralized, distributed devices such as control units 12, 14, 16 in the form of programmable logic controllers (PLC, mini-PLC) or intelligent modules, as well as electrical and / or mechanical components 18 , 20, 22 in the form of transport systems, motors or sensors of a production plant 24.

The devices 12, 14, 16, which are referred to as "devices" in FIG. 1, can be designed as a programmable logic controller (PLC), mini-PLCs distributed in the production plant 24, or intelligent control modules in the form of intelligent actuators or sensors Devices 12, 14, 16 are coupled to each other via a data communication system 26 for exchanging data, wherein the data communication system 26 may be formed as a wired bus system or wireless radio system.

Furthermore, the devices 12, 14, 16 each have physical inputs or outputs 28, 30, 32 for controlling actuators or for acquiring sensor data.

One or more software components 34 - 44 are implemented in the devices 12, 14, 16, via which different services (services) such as, for example, diagnosis, data access or also control processes are provided and called up.

Overall, therefore, each of the devices (devices) 12, 14, 16 forms a service as a combination of mechatronics, communication and intelligence, which are integrated into an overall concept, which takes over all control tasks. In the illustrated embodiment of the service-oriented architecture, at least one software component is designed as a web service. The service-oriented architecture enables equal communication between the devices 12, 14, 16 without the need for a hierarchy concept.

FIG. 2 outlines the engineering process for flexible production facilities based on a service-oriented architecture.

The production plant 24 is represented by a PPR model containing product, process and resource information. The production process may be represented by a process graph 48 in which sub-processes 50, 52, 54 are included. Each sub-process 50, 52, 54 contains logic information, i. H. the timing of actions, including information about what resources are needed to perform each sub-process. The decisive design step is the adoption of this information for the development of services.

The software components 34, 40, 42 of the devices 12, 14, 16 numbered in FIG. 1, which assume control processes, are each derived from one of the sub-processes 50, 52, 54. Each software component of a sub-process includes a control logic 56 that is developed for each one manufacturing process, such as sub-process 52, and derived from process graph 48. Since the processing of the sub-process 52 requires resources in the form of the electrical or mechanical components 18, 20, 22 such as sensors, motors and transport systems, a flexible interface 54 is implemented in which resource-specific data is allocated. The resources 18, 20, 22 themselves are represented in the virtual engineering environment (PPR model) in such a way that their physical behavior is reproduced as expediently as possible, for example the time consumption for a movement process.

Finally, the standardized software components 34, 40, 42 are equipped with communication interfaces 60, 62. In the case of the service-oriented architecture, the communication interface 60 is implemented as a web service-based technology. mented and enables communication with other services and thus integration into an overall concept. Via the interface 62, resources 18, 20, 22 can be activated or their states can be queried.

In this way, software components 34, 40, 42 are derived from all subprocesses of the entire process flow, which can then be implemented in the overall system 10 of the service-oriented architecture.

In order to obtain a software component that is as standardized as possible, taking into account the changing framework conditions of the production plant, a model of a life cycle for the production plant is developed based on the software components. A time sequence of a plant life cycle is shown in FIG. First, a demand definition of the production plant, such as its production capacity, is carried out. On this basis, various variants are planned for the flexible operation of the production plant. The PPR model of the production plant accompanies the plant throughout its entire life cycle. The PPR model contains virtual mappings of equipment and components of the production plant that contain the software components as a module.

On the basis of such modules is then the construction of a virtual model with flexible adaptation to different conditions, the sub-processes and thus the control logic of the software components are constantly adapted. In order to increase the flexibility of the software components, several variants of sub-processes are implemented in the control logic, eg. B. clamping a sheet with different clamping configuration.

The advantage of the invention in the planning phase is that a production system can be represented virtually with "intelligent" models of devices and components, the "intelligence" of the modules used being adapted by planning different variants for the flexible operation due to different framework conditions can. From such a PPR model, taking into account the plant life cycle in changing conditions can Then a control program for the actual plant control can be derived.

On the hardware level, the invention offers the advantage that devices in the form of programmable logic controllers, robot controllers or the like can be flexibly adapted to changing production conditions, without the need for time-consuming reprogramming.

4 shows that different production scenarios can be represented in the form of a client-server architecture and analyzed virtually. In the production plant 24, for example, a product 64 is transported on a pallet. The unit of product and pallets is hereinafter referred to as "client." A service 66 such as "transport demand" is requested via the data transmission medium 20. The request is forwarded to the device 12 as motor control of a transport structure, which in turn reports a service request 68 to the device 14 such as control of a transfer station. Finally, the device 14 calls the general service 70 "transport system", which ultimately provides the required transport capacity for transporting the product.

The architecture shown in FIG. 4 also shows that a stepless transition from a central control to decentralized control components 12, 14, 16 can be performed. The web services used can in turn call other web services 72. These requests can be made over a global network 74 such as the Internet. Web services can be integrated into the IT landscape of a company. For example, a connection to an MES 76 (Manufacturing Execution System) can be established to retrieve specific routing information.

Claims

claims
Control system and method for configuring a control system
1. Control system with service-oriented architecture for a flexible production plant, comprising a data communication system for exchanging data with each other coupled, distributed distributed devices with at least one software component and electrical and / or mechanical components, characterized in that the software Component is derived from a process or sub-process of a flexible manufacturing PPR model, each software component having a control logic derived from the process or sub-process, a flexible interface for accessing resources represented in the PPR model, and a communication interface for integration with the service-oriented one Architecture has.
2. Control system according to claim 1, characterized in that the communication interface is implemented as a web service based technology.
3. Control system according to at least one of the preceding claims, characterized in that the software components and the associated client-server architecture are implemented at different aggregation levels.
4. Control system according to at least one of the preceding claims, characterized in that the software components form a web service as a library of generic web services.
5. Control system according to at least one of the preceding claims, characterized in that the software component is designed as a web service.
6. A method for configuring a control system by developing and implementing service-oriented software components as components of a service-oriented architecture for distributed distributed devices in flexible production facilities, characterized in that the following method steps are carried out:
Creating a PPR model of the flexible production plant taking into account product, process and resource information, decomposing a production process contained in the PPR model into sub-processes,
Developing the software components based on the sub-processes, each of the software components having control logic derived from the sub-process, a flexible interface for accessing resources represented in the PPR model, and a communications interface for integration into the service-oriented architecture,
Presentation and analysis of different production scenarios as client-server architecture,
Implementation of the software components and the associated client server architecture in the control system.
7. The method according to claim 6, characterized in that the method steps are carried out in a virtual development environment.
EP07847979A 2006-12-08 2007-12-07 Control system, and method for configuring a control system Withdrawn EP2100198A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE200610058282 DE102006058282A1 (en) 2006-12-08 2006-12-08 Engineering process for developing a service-oriented software component and software components as components of a service-oriented architecture
PCT/EP2007/063526 WO2008068333A1 (en) 2006-12-08 2007-12-07 Control system, and method for configuring a control system

Publications (1)

Publication Number Publication Date
EP2100198A1 true EP2100198A1 (en) 2009-09-16

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EP07847979A Withdrawn EP2100198A1 (en) 2006-12-08 2007-12-07 Control system, and method for configuring a control system

Country Status (5)

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US (1) US20100131076A1 (en)
EP (1) EP2100198A1 (en)
JP (1) JP2010511949A (en)
DE (1) DE102006058282A1 (en)
WO (1) WO2008068333A1 (en)

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DE102009025891A1 (en) 2009-05-29 2010-12-02 Schneider Electric Automation Gmbh Method for configuring a service-oriented production line comprising virtual and / or real devices and components
DE102011053757A1 (en) * 2011-09-19 2013-03-21 Schneider Electric Automation Gmbh Method for generating and handling applications for components of a control system
DE102012201255A1 (en) * 2012-01-30 2013-08-01 systego GmbH Workflow management system for computer networks
CN103529799B (en) * 2013-10-21 2015-11-04 无锡华鹏瓶盖有限公司 Metal cover production line information service method and system
EP2985731A1 (en) * 2014-08-11 2016-02-17 Siemens Aktiengesellschaft Method, assembly, use of the method and computer program product for an evaluation of energy technology data
US10270253B2 (en) * 2015-05-14 2019-04-23 Varentec, Inc. System and method for regulating the reactive power flow of one or more inverters coupled to an electrical grid
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WO2017077013A1 (en) 2015-11-04 2017-05-11 Hochschule Düsseldorf Control device having a control program and an equipment configuration for operating a piece of automation equipment
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EP3575904A1 (en) * 2018-05-30 2019-12-04 Siemens Aktiengesellschaft Method for producing a recipe for a process engineering system

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Also Published As

Publication number Publication date
DE102006058282A1 (en) 2008-06-12
US20100131076A1 (en) 2010-05-27
WO2008068333A1 (en) 2008-06-12
JP2010511949A (en) 2010-04-15

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