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PROFINET System Description Technology and Application PROFINET System Description Technology and Application HMI Controller Security Switching Wireless Safety Sensors Remote Motion Control Robots I/O Proxy Proxy & Drives Other Fieldbusses Safety Remote I/O Figure 1: PROFINET satisfies all requirements of automation technology Introduction The ever-shorter innovation cycles for new the board. As technology that is standard in the products makes the continuous evolution of automotive industry, widely disseminated in ma- automation technology necessary. The use of chine building, and well-proven in the food and fieldbus technology has been a significant devel- beverage, packaging, and logistics industries, opment in the past few years. It has made it pos- PROFINET has found its way into all application sible to migrate from central automation systems areas. New application areas are constantly to distributed ones. PROFIBUS, as the global emerging, such as marine and rail applications or market leader, has set the benchmark here for even day-to-day operations in a beverage shop. more than 20 years. And highly topical: the new PROFIenergy tech- nology profile will improve the energy balance in In today's automation technology, Ethernet and production processes. information technology (IT) are increasingly call- ing the shots with established standards like PROFINET is standardized in IEC 61158 and IEC TCP/IP and XML. Integrating information 61784. The ongoing further development of PRO- technology into automation opens up significantly FINET offers users a long-term view for the im- better communication options between automa- plementation of their automation tasks. tion systems, extensive configuration and diag- nostic possibilities, and network-wide service For plant and machine manufacturers, the use of functionality. These functions have been integral PROFINET minimizes the costs for installation, components of PROFINET from the outset. engineering, and commissioning. For plant own- ers, PROFINET offers ease of plant expansion PROFINET is the innovative open standard for and high system availability due to autonomously industrial Ethernet. PROFINET satisfies all re- running plant units and low maintenance require- quirements for automation technology. Whether ments. the application involves factory automation, process automation, or drives (with or without The mandatory certification for PROFINET de- functional safety), PROFINET is the first choice vices also ensures a high quality standard. across PROFINET System Description I Table of Contents 1. PROFINET AT A GLANCE…………1 6. OPTIONAL FUNCTIONS………….. 11 1.1 MARKETS AND APPLICATIONS…………. 1 6.1 MULTIPLE ACCESS TO FIELD DEVICES…. 11 1.2 HIGHLIGHTS……………………........... 1 6.2 EXTENDED DEVICE IDENTIFICATION…… 11 1.3 PERSPECTIVES ON PROFINET………. 1 6.3 INDIVIDUAL-PARAMETER-SERVER…….. 12 1.4 CONFORMANCE CLASSES………………2 6.4 CONFIGURATION IN RUN………………. 12 1.5 STANDARDIZATION…………………….. 2 6.5 TIME STAMPING ……………………….. 13 6.6 FAST RESTART………………………... 13 2. MODELING AND ENGINEERING…2 6.7 HIGH AVAILABILITY…………………….. 13 2.1 SYSTEM MODEL OF A PROFINET IO 6.8 CALLING AN ENGINEERING TOOL……….14 SYSTEM………………………………... 2 7. INTEGRATION OF FIELDBUS 2.2 DEVICE MODEL OF AN IO-DEVICE…….. 3 SYSTEMS…………………………… 14 2.3 DEVICE DESCRIPTIONS………………... 3 2.4 COMMUNICATION RELATIONS…………. 3 8. APPLICATION PROFILES………... 15 2.5 ADDRESSING………………………….. 4 8.1 PROFISAFE…………………………... 15 2.6 ENGINEERING OF AN IO SYSTEM……… 4 8.2 PROFIDRIVE………………………….. 15 2.7 WEB INTEGRATION……………………. 5 8.3 PROFIENERGY……………………….. 15 3. BASIC FUNCTIONS OF 9. PROFINET FOR PROCESS CONFORMANCE CLASS A………. 5 AUTOMATION……………………… 15 3.1 CYCLIC DATA EXCHANGE……………… 10. NETWORK INSTALLATION……….16 6FEHLER! TEXTMARKE NICHT DEFINIERT. 3.2 ACYCLIC PARAMETER DATA…………… 6 10.1 NETWORK CONFIGURATION…………… 16 3.3 DEVICE/NETWORK DIAGNOSTICS……… 6 10.2 CABLES FOR PROFINET…………….. 17 10.3 PLUG CONNECTORS ……………………17 4. NETWORK DIAGNOSTICS AND MANAGEMENT OF CONFOR- 10.4 SECURITY………………………………17 MANCE CLASS B………………….. 7 11. PROFINET IO-TECHNOLOGY 4.1 NETWORK MANAGEMENT PROTOCOL…. 7 AND CERTIFICATION…………….. 18 4.2 NEIGHBORHOOD DETECTION………….. 7 4.3 REPRESENTATION OF THE TOPOLOGY… 7 11.1 TECHNOLOGY SUPPORT………………. 18 4.4 DEVICE REPLACEMENT…………………8 11.2 TOOLS FOR PRODUCT DEVELOPMENT… 19 4.5 INTEGRATION OF NETWORK DIAGNOSTICS 11.3 CERTIFICATION TEST………………….. 19 INTO THE IO SYSTEM DIAGNOSTICS…… 8 12. PROFIBUS & PROFINET 5. ISOCHRONOUS REAL-TIME WITH INTERNATIONAL (PI……………… 20 CONFORMANCE CLASS C………. 9 12.1 TASKS PERFORMED BY PI…………….. 20 5.1 SYNCHRONIZED COMMUNICATION…….. 9 5.2 MIXED OPERATION…………………….10 5.3 OPTIMIZED IRT MODE………………...10 Notes on Content This document describes all essential aspects of Chapters 7 to 9 are dedicated to the integration the PROFINET technology and reflects the level of fieldbuses and other technologies, profiles, and of technology available at the end of 2010. specific process automation topics in PROFINET and describe the additional benefits for PROFI- Chapter 1 introduces PROFINET and provides NET systems. an overview of the market position and modular design. Chapter 10 describes relevant aspects of PRO- FINET networks such as topologies, cables, con- Chapter 2 describes the underlying models and nectors, web integration, and security. the engineering of a PROFINET system. Chapter 11 is directed at product managers and Chapters 3 to 5 cover the basic functions of provides information on product implementation PROFINET communication from the perspective and certification. of conformance classes. Chapter 12 provides information on PROFIBUS Chapter 6 contains a brief description of optional & PROFINET International, the world's largest functions that are used in different applications. interest organization for industrial automation. PROFINET System Description II Cost-saving and efficient through 1. PROFINET at a glance Application simple putting into operation, target-oriented error search, and faster applications 1.1 Markets and applications Perfor- Availa- Integrated Devices Openness Flexibility PROFINET is the communication standard for mance bility safety automation of PROFIBUS & PROFINET Interna- tional (PI). The modular range of functions makes PROFINET a flexible solution for all applications PROFINET Net PROFI- TCP/IP Real-time Diagnosis and markets. With PROFINET, applications can Functions structure safe be implemented for production and process automation, safety applications, and the entire range of drive technology up to and including Figure 2: The functionality of PROFINET isochronous motion control applications. Applica- is scalable tion profiles allow optimal use of PROFINET in all areas of automation engineering. flexible line, ring, and star structures and copper and fiber-optic cable solutions. PROFINET saves For plant and machine manufacturers, the use on expensive custom solutions and enables wire- of PROFINET minimizes the costs for installation, less communication with WLAN and Bluetooth. engineering, and commissioning. Scalable real time The plant owner profits from ease of plant ex- pansion, high plant availability, and fast and effi- Communication takes place over the same cable cient automation. in all applications, ranging from simple control tasks to highly demanding motion control applica- The many years of experience with PROFIBUS tions. For high-precision closed-loop control tasks, and the widespread use of Industrial Ethernet deterministic and isochronous transmission of have been rolled into PROFINET. PROFINET time-critical process data with a jitter of less than uses UDP/IP as the higher-level protocol for de- 1 µs is possible. mand-oriented data exchange. In parallel with UDP/IP communication, cyclic data exchange in High availability PROFINET is based on a scalable real-time con- cept. PROFINET integrates automatically reacting re- dundancy solutions and intelligent diagnostic con- In addition, PROFINET plays an important role cepts. Acyclic diagnostic data transmission pro- when it comes to investment protection. PROFI- vides important information regarding the status of NET enables the integration of existing fieldbus the network and devices, including a display of systems like PROFIBUS, AS-Interface, INTER- the network topology. The defined concepts for BUS, Foundation Fieldbus, and DeviceNet, with- media and system redundancy increase the plant out changes to existing devices. That means that availability significantly. the investments of plant operators, machine and plant manufacturers, and device manufacturers Safety integrated are all protected. The proven PROFIsafe safety technology of Establishment of the proven certification process PROFIBUS is also available for PROFINET. The ensures a high standard of quality for PROFINET ability to use the same cable for standard and products and their interoperability in plants. safety-related communication saves on devices, engineering, and setup. 1.2 Highlights 1.3 Perspectives on PROFINET Everything on one cable The PROFINET concept has two perspectives: With its integrated, Ethernet-based communica- PROFINET CBA and PROFINET IO. Figure 3 tion, PROFINET satisfies a wide range of shows how the two perspectives interrelate. requirements, from data-intensive parameter assignment to extremely fast I/O data transmis- PROFINET CBA is suitable for component-based sion. PROFINET thus enables automation in real- machine-to-machine communication via TCP/IP time. In addition, PROFINET provides a direct and for real-time communication required for interface to the IT level. modular plant designs. It enables a simple
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