Showing papers on "PROFINET published in 2009"
TL;DR: In this paper, the authors discuss how the WISA concept can be efficiently integrated into wired field networks for factory automation-both state-of-the-art [process fieldbus decentral peripherals (PROFIBUS DP)] and new [PROFINET IO] networks.
Abstract: Cost related to the wiring of sensors and actuators in the manufacturing industry is rapidly increasing with the number of field devices. Complex engineering as well as cable wear and tear are important factors. For over a decade, fieldbuses have been the dominating approach to simplify installation, reduce engineering efforts, and increase reliability at the field level. The next step in this process is to introduce wireless communication in certain problematic parts of the field network. In order to do this, a reliable real-time communication system, designed to cope with the harsh environments where factory automation systems are employed, is required. The wireless interface for sensors and actuators (WISA), with its two subconcepts WISA-power and WISA-com, is such a system. This paper discusses how the WISA concept can be efficiently integrated into wired field networks for factory automation-both state-of-the-art [process fieldbus decentral peripherals (PROFIBUS DP)] and new (PROFINET IO) networks. We propose amendments to WISA, which will improve the 802.11b/g coexistence and harmonize the integration of WISA for sensor/actuator communication in, e.g., PROFINET IO systems. The suggested improvements relate to both the radio protocol in order to improve coexistence with other wireless technologies as well as concepts for the integration of WISA into the field network of PROFINET/PROFIBUS.
88 citations
20 Jul 2009
TL;DR: It is shown that it is possible to attack and gain control over PROFINET IO nodes and also that this can be done without any of the communicating peers detecting the attack.
Abstract: In this paper we show that it is possible to attack and gain control over PROFINET IO nodes and also that this can be done without any of the communicating peers detecting the attack. Analysis of attacks in both shared and packet switched networks show that the attacker can control the process data and thus the state of the machines connected to the I/O modules. As the security risks are increasing in automation with the level of vertical and horizontal integration, the concept of security modules is proposed towards a method to retrofit security in PROFINET IO. The concept of security modules can be applied without changing anything in the underlying transmission system and is extendable if and when new security threats are identified.
43 citations
01 Jul 2009
TL;DR: An algorithm that allows one to create a static schedule of the Profinet IO IRT communication, which is an industrial Ethernet protocol standardised in IEC, is presented, providing comparable results regarding the resulting time schedule length.
Abstract: This paper presents an algorithm that allows one to create a static schedule of the Profinet IO IRT communication, which is an industrial Ethernet protocol standardised in IEC$\;$61158. This algorithm offers an alternative to the available commercial tool, providing comparable results regarding the resulting time schedule length. Furthermore, we extend the problem by useful time constraints providing a greater flexibility with respect to the individual messages. Due to this flexibility, it is possible to place the selected messages in various parts of the communication cycle, to define end-to-end delays, or to increase the computational time available for the main-controller application, for example. The solution is based on a formulation of the Profinet IO IRT scheduling problem in terms of the Resource Constrained Project Scheduling with Temporal Constraints (PS|temp|Cmax).
41 citations
22 Sep 2009
TL;DR: This paper compute the most relevant performance indicators introduced by IEC 61784 standard and two (purposely defined) additional ones, namely minimum cycle time and jitter, which are suitable for the two networks considered.
Abstract: The employment of Real Time Ethernet networks in factory automation systems is rapidly increasing and several commercial products, with different characteristics, are already available from various manufacturers. Most of these networks have been included in both the IEC 61158 and IEC 61784 International Standards that, in addition, define a set of Performance Indicators. In this paper we focus on two popular Real Time Ethernet networks, namely Ethernet POWERLINK and EtherCAT, and we evaluate their performance for a typically deployed factory automation configuration. Specifically, we compute the most relevant performance indicators introduced by IEC 61784 standard and two (purposely defined) additional ones, namely minimum cycle time and jitter, which are suitable for the two networks considered.
41 citations
TL;DR: The IEEE P802.3ba Task Force has successfully developed an architecture that will be able to simultaneously support both 40 Gb and 100 Gb Ethernet, as well as the multitude of physical layer specifications selected for this project.
Abstract: The IEEE P802.3ba Task Force has successfully developed an architecture that will be able to simultaneously support both 40 Gb and 100 Gb Ethernet, as well as the multitude of physical layer specifications selected for this project.
22 citations
29 May 2009
TL;DR: This paper introduces how to combine a wireless Fieldbus to an existing wired Fieldbus by presenting an example for health monitoring of elderly people in an automated home environment.
Abstract: Wireless sensor networks (WSN) have recently been proposed for a large range of applications in home and industrial automation, and for health and environment monitoring. Especially the ZigBee standard is getting rising attention as it can be used to implement wireless sensor networks, because of its low data rate and low power consumption. Increasingly there is a need to access wireless sensor network from other IP-based networks and also there is a need to add the wireless sensor functionalities to existing industrial Ethernet networks (field buses, Profibus, Profinet). In this paper we introduce how to combine a wireless Fieldbus to an existing wired Fieldbus by presenting an example for health monitoring of elderly people in an automated home environment.
15 citations
22 Sep 2009
TL;DR: Based on the examples PROFIBUS and PROFINET, some design decisions needed for WirelessHART integration and their advantages and disadvantages are presented.
Abstract: WirelessHART is a new protocol for Wireless Sensor Networks (WSN). In most usage scenarious, such a WSN has to be integrated into existing wired infrastructures to build an automation process. Based on the examples PROFIBUS and PROFINET, this paper presents some design decisions needed for this integration and their advantages and disadvantages.
11 citations
Patent•
29 Sep 2009TL;DR: In this paper, a real-time application requirement of services is provided by the present invention, where a preset data transmission cycle is divided into N periods, which include at least two types of high real time (HRT) communication period, Low Real Time (LRT) communications period and Non Real Time communication period.
Abstract: A communication method in a PROFINET communication system is provided by the present invention. According to the real-time application requirement of services, a preset data transmission cycle is divided into N periods, which include at least two types of High Real Time (HRT) communication period, Low Real Time (LRT) communication period and Non Real Time (NRT) communication period. An Access Point (AP) performs data transmission according to HRT transmission mechanism in the HRT communication period of the data transmission cycle, and performs data transmission according to LRT transmission mechanism in the LRT communication period, and performs data transmission according to NRT transmission mechanism in the NRT communication period. By using the method, the requirement of the coexistence of applications with different real-time requirements can be satisfied in PROFINET communication.
10 citations
22 Sep 2009
TL;DR: In this paper, a software implementation of a modified version of the pre-standard HSR redundancy protocol was implemented on a NIOS II soft-core running under eCOS in conjunction with a PROFINET RT stack.
Abstract: A software implementation of a modified version of the pre-standard HSR redundancy protocol was implemented on a NIOS II soft-core running under eCOS in conjunction with a PROFINET RT stack. The modifications allowed the achievement of true multi-topology performance. This paper describes elements of the current HSR draft, the author's modifications and the resulting implementation.
10 citations
22 Sep 2009
TL;DR: The results prove the thesis that the proposed solution for data exchange between horizontal and vertical industrial communication systems can give better data resolution and lower system overheads.
Abstract: This paper describes a PROFINET I/O passive OPC Server that was realized as a student's project built at the Institute of Informatics, Silesian University of Technology in cooperation with the company Softing A.G. The authors describe the project idea and present the practical results of the experiment. The results prove the thesis that the proposed solution for data exchange between horizontal and vertical industrial communication systems can give better data resolution and lower system overheads. The presented idea may be the basis for future works on vertical communication for industrial real-time systems.
10 citations
TL;DR: This chapter describes PROFINET I/O network analyzer that was created as an open project realized in Institute of Informatics, Silesian University of Technology within cooperation with University of Applied Sciences Ingolstadt.
Abstract: This chapter describes PROFINET I/O network analyzer that was created as an open project realized in Institute of Informatics, Silesian University of Technology within cooperation with University of Applied Sciences Ingolstadt Authors provide description of a PROFINET I/O analyzer idea which was based on joined analysis operation modes: active industrial network structure scanning and passive listening to a real-time communication The base information about industrial PROFINET I/O structure, communication protocol and the core structure of realized network analyzer are presented also
25 Jul 2009
TL;DR: Test results demonstrate that the industrial Ethernet adapter has not only good performance in stability, real-time property of data transmission but also bright prospects in application.
Abstract: Aiming at application of industrial network, this paper adopted ARM9 microprocessor to construct the hardware system of an industrial Ethernet adapter, developed I/O interface driver under Windows CE.NET operating system and completed the application software of the industrial Ethernet adapter based on EADK software platform. In addition, with the help of EIPScan, EDITT, PCU-ETHIO Ethernet/IP scanner, etc, a complete test was given to the communication adapter. Test results demonstrate that the industrial Ethernet adapter has not only good performance in stability, real-time property of data transmission but also bright prospects in application.
01 Jan 2009
TL;DR: A heuristic scheduling algorithm is presented to minimise the reserved bandwith in fieldbus systems like Profinet IRT to allow additional non real-time communication in these networks and to get short communication cycles.
Abstract: Fieldbus systems like Profinet IRT use network technologies which are compatible with common office networks like Ethernet. In order to enable real-time communication, bandwidth reservation is used in these networks. The length of the reserved bandwidth depends on preplanned message schedules. It is an important task to minimise the reserved bandwith to allow additional non real-time communication in these networks and to get short communication cycles. In this paper a heuristic scheduling algorithm is presented. This paper is based on ongoing work and presents first results.
10 Oct 2009
TL;DR: An approach for fully integrated automation with Profibus and protocol conversion gateway is proposed and implemented within an industrial control network consisting of different kinds of devices, as there are several fieldbus subsystems and Ethernet segment coexisting.
Abstract: An approach for fully integrated automation with Profibus and protocol conversion gateway is proposed and implemented within an industrial control network consisting of different kinds of devices, as there are several fieldbus subsystems and Ethernet segment coexisting. Based on the analysis of Profibus protocol, a design scheme for Profibus-DP communication interface to implement master or slave functions was presented. Aiming at realizing interoperation between Profibus devices and other fieldbus devices, a gateway system for protocol conversion is designed. Profinet technology is adopted to encapsulate Profibus devices into Profinet components, which provides an efficient way to connect fieldbus device to industrial Ethernet by means of node-to-node communication.
Journal Article•
TL;DR: Based on Ethernet for Plant Automation communication protocol stack, this paper designs a parallel Ethernet redundancy solution, including system architecture, frame structure and communication procedures, and gives performance analysis.
Abstract: Industrial control system requires industrial Ethernet for high reliability and stability,so it limits the application of industrial EthernetIn order to reduce the impact of communication failures to the system,this paper adds a redundant link to enhance the availability of communicationsBased on Ethernet for Plant Automation(EPA) communication protocol stack,it designs a parallel Ethernet redundancy solution,including system architecture,frame structure and communication procedures,and gives performance analysis
20 Jul 2009
TL;DR: Two methods to improve the reliability and real-time performance of commercial Ethernet: hardware devices and communication protocols are analyzed.
Abstract: High reliability and real-time performance is a must in the industrial control networks. This article discussed both advantages and disadvantages of traditional fieldbus, then the open standard Ethernet technology was introduced. By discussing the disadvantage of applying commercial Ethernet to industrial control networks, this article analyzed two methods to improve the reliability and real-time performance of commercial Ethernet: hardware devices and communication protocols. This article could be used as a reference by Industrial Ethernet designers.
28 Dec 2009
TL;DR: Through the comparison between Fieldbus Control System (FCS) and Multi-Agent theory, the comparability on technical characteristic and architectural characteristic could predicate that FCS is the genetic platform of Multi- agent theory.
Abstract: A modern industrial process is more and more complex. There is no satisfactory effect controlled by traditional strategy and methods in complex control system; while single intelligent method is difficult to adapt to the global control for such kind of system. First, the characteristic and application are introduced. Then through the comparison between Fieldbus Control System (FCS) and Multi-Agent theory, the comparability on technical characteristic and architectural characteristic could predicate that FCS is the genetic platform of Multi-Agent theory. A three-layer composite Multi-Agent control network used for complex industrial process is constructed based on PROFINET industrial Ethernet technology.
Journal Article•
TL;DR: A gateway between ZigBee and Industrial Ethernet is presented for the development of Industrial Ethernet and industrial wireless communication and the Modbus/RTU master-slave communication protocol is integrated into the application layer.
Abstract: In this paper, a gateway between ZigBee and Industrial Ethernet is presented for the development of Industrial Ethernet and industrial wireless communication. The Modbus/RTU master-slave communication protocol is integrated into the application layer, and the UDP protocol is applied in Ethernet transport layer . The overall framework of Software and hardware is introduced at first. Then the emphases is put on the technology which keep transmitting effectively, such as mapping ZigBee address from Modbus address ,the design of buffering and so on. The hardware is based on Rabbit3000 MCU and SZ05-ZBEE ZigBee module,the software design is based on Dynamic C and the μC/OS-Ⅱmulti-task real-time scheduling system.
Journal Article•
TL;DR: Ethernet communication was implemented between DSP TMS320VC5402 and PC through RTL8019AS and TCP/IP protocol which was cut.
Abstract: To convenience debugging of the control system, a mode of the Ethernet was presented for remote debugging of the control system. According to the characteristic of the high bandwidth and long-range of the Ethernet, this method adopted Network Interface Controller (NIC) and combining software with hardware. Ethernet communication was implemented between DSP TMS320VC5402 and PC through RTL8019AS and TCP/IP protocol which was cut.
Journal Article•
TL;DR: A systemic structural model of indoor air quality monitoring system based on intellectual instrument of high-speed Ethernet based on ARM microprocessor of LPC2210 as the core of the intellectual instrument and embedded operating system μC/OS-Ⅱ to realize UDP protocol processing.
Abstract: Aimed at the shortcomings of numerous agreements of the fieldbus and the poor compatibility of the many different agreements,a systemic structural model of indoor air quality monitoring system based on intellectual instrument of high-speed Ethernet was proposed.The system uses ARM microprocessor of LPC2210 as the core of the intellectual instrument,uses embedded operating system μC/OS-Ⅱ to realize UDP protocol processing and uses the corresponding application procedures to complete the tasks of data collection,analysis,display,storage,Ethernet transmission etc.
Journal Article•
TL;DR: The design scheme employs ATmega8 single-chip microprocessor as the control core, and through ENC28J60 Ethernet Controller Implements the communication with industrial Ethernet.
Abstract: In order to achieve RS232 interface equipment and industrial Ethernet communications,a design of embedded Ethernet Gateway is proposed.The design scheme employs ATmega8 single-chip microprocessor as the control core,and through ENC28J60 Ethernet Controller Implements the communication with industrial Ethernet.This paper gives software and hardware design of the system.As compared with other embedded gateways,it is easy in software design and strong in anti-interference.
29 Dec 2009
TL;DR: A generic solution is presented, which analyses existing Computer Aided Engineering (CAE) documents and thereof automatically generates simulation models, described as Modelica models, which use a special library, customized for the automation branch.
Abstract: This paper deals with the model generation for automation systems. A generic solution is presented, which analyses existing Computer Aided Engineering (CAE) documents and thereof automatically generates simulation models. They are described as Modelica models and use a special library, customized for the automation branch. It contains common elements which can be parameterized with very few efforts. Additional components for the communication to the control are available. They support several widely accepted technologies like OPC, Profibus, Profinet, analog and digital signals. The generation process focuses on being as automated as possible. It is a general approach, which could be applied to various types of simulation with different levels of detail. Its integration into a software prototype shows the feasibility and provides first practical feedback.
Journal Article•
TL;DR: The Gigabit Ethernet card driver GMAC's basic characteristics, performance advantages, the basic principles and design methods, analysis of the realization of the hardware and software mechanisms, as well as descriptors of the various software design process are studied.
Abstract: This paper studied the Gigabit Ethernet card driver GMAC's basic characteristics,performance advantages,the basic principles and design methods,analysis of the realization of the hardware and software mechanisms,as well as descriptors of the various software design process.Gigabit Ethernet have a wide range of markets and a good prospects in the field of high-performance computer servers.