SOAP4PLC: Web Services for Programmable Logic Controllers

Mathes, M.; Stoidner, Christoph; Heinzl, Steffen; Freisleben, Bernd

doi:10.1109/pdp.2009.42

Cited by 15 publications

(10 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To enable the PLC to access the three web services provided by the accounting system, the SOAP4PLC engine [13], [9] [10] is used. Currently, the SOAP4PLC engine allows to offer IEC61131-3 function blocks as web services.…”

Section: Applicationmentioning

confidence: 99%

“…SOAP protocol handling is realized by the SOAP4PLC [9] engine, the already mentioned SOAP engine especially designed for use on a PLC. The SOAP4PLC engine was developed in C as part of the CoDeSys runtime system and has full low-level access to the system's resources and the application's structure.…”

Section: Software and Hardware Environmentmentioning

confidence: 99%

“…The SOAP4PLC engine [9] and the sequencecontrolled web services approach [13,10] bridge the gap between service-oriented business applications and non service-oriented industrial applications by means of a SOAP engine for PLCs. The SOAP4PLC engine allows to wrap an IEC61131-3 [5] function block of a PLC application by a web service interface and use the web service invocation mechanisms to execute its functionality.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Invoking Web services from programmable logic controllers

Stoidner

Freisleben

2010

2010 IEEE 15th Conference on Emerging Technologies &Amp; Factory Automation (ETFA 2010)

View full text Add to dashboard Cite

The adoption of service-oriented architectures based on web services in industrial application domains enables the seamless integration of business software with manufacturing tasks and promises increased interoperability. To be able to invoke a manufacturing task running on a programmable logic controller (PLC) as a web service from a business application, the SOAP4PLC engine has been proposed. In this paper, an extension of the SOAP4PLC engine is presented to invoke a web service based business application from a PLC application. A use case is shown in which the extended SOAP4PLC engine is used to interface a PLC application concerned with realizing the functionality of a charging station for electrical vehicles with a web service based accounting system.

show abstract

Section: Applicationmentioning

confidence: 99%

Section: Software and Hardware Environmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Invoking Web services from programmable logic controllers

Stoidner

Freisleben

2010

2010 IEEE 15th Conference on Emerging Technologies &Amp; Factory Automation (ETFA 2010)

View full text Add to dashboard Cite

show abstract

“…This section presents SOAP4PLC [15], a SOAP engine for programmable logic controllers (PLCs). SOAP4PLC is a key component of the real-time infrastructural layer and permits the execution of web services on PLCs in real-time.…”

Section: Web Services For Plcs Using Soap4plcmentioning

confidence: 99%

Time-constrained services: a framework for using real-time web services in industrial automation

Mathes

Stoidner

Schwarzkopf

et al. 2009

SOCA

Self Cite

View full text Add to dashboard Cite

The use of web services in industrial automation, e.g. in fully automated production processes like car manufacturing, promises simplified interaction among the manufacturing devices due to standardized protocols and increased flexibility with respect to process implementation and reengineering. Moreover, the adoption of web services as a seamless communication backbone within the overall industrial enterprise has additional benefits, such as simplified interaction with suppliers and customers (i.e. horizontal integration) and avoidance of a break in the communication paradigm within the enterprise (i.e. vertical integration).The Time-Constrained Services (TiCS) framework is a development and execution environment that empowers automation engineers to develop, deploy, publish, compose, and invoke time-constrained web services. TiCS consists of four functional layers-tool support layer, real-time infrastructural layer, real-time service layer, and hardware layerwhich contain several components to meet the demands of a web service based automation infrastructure. This article gives an overview of the TiCS framework. More precisely, the general design considerations and an architectural blueprint of the TiCS framework are presented. Subsequently, selected key components of the TiCS framework are discussed in detail: the SOAP4PLC engine for equipping programmable logic controllers with a web service interface, the SOAP4IPC engine for processing web services in realtime on industrial PCs, the WS-TemporalPolicy language for describing time constraints, and the TiCS Modeler for composing time-constrained web services into a time-constrained BPEL4WS workflow.

show abstract

“…An option for implementation of the DPSW independently of the manufacturer of a PLC is shown in [9]. A service server is implemented here as a functional module based on the standard IEC 61131-3 programming language.…”

Section: Introduction Of Service Principlesmentioning

confidence: 99%

PLCs as Industry 4.0 Components in Laboratory Applications

Langmann

Rojas-Peña

2016

Int. J. Onl. Eng.

View full text Add to dashboard Cite

Abstract-This paper focuses in three main subjects; the first one and the most important is the presentations and implementation of a concept to use an standard PLC as an Industry 4.0 (I40) component following the specification defined by the Industry 4.0 architecture RAMI 4.0. With this realization those industrial controllers can be easily integrated in Industry 4.0 production environments using the service paradigm. The next subject of this work involves some tests to evaluate the developed concept based on a prototype implementation. As result, the transmission time for the process data from the PLC to the IP network was determined for two use cases. The last part of the paper presents a practical implementation using a laboratory installation intendent to educational applications. With the PLC as an I40 component, process data can be transferred directly from the controller to an IP network without additional delays. The achieved result forms, amongst other things, the basis for outsourcing parts of the control program to a cloud. The prototype applications are available for learning and training purposes.

show abstract

SOAP4PLC: Web Services for Programmable Logic Controllers

Cited by 15 publications

References 9 publications

Invoking Web services from programmable logic controllers

Invoking Web services from programmable logic controllers

Time-constrained services: a framework for using real-time web services in industrial automation

PLCs as Industry 4.0 Components in Laboratory Applications

Contact Info

Product

Resources

About