PROFIBUS With STEP 7 V12 - Farnell Element14

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PROFIBUS with STEP 7 V12 Preface1Documentation guideSIMATICPROFIBUSPROFIBUS with STEP 7 gnostics5FunctionsFunction Manual01/2013A5E03775446-01AService & Support

Legal informationWarning notice systemThis manual contains notices you have to observe in order to ensure your personal safety, as well as to preventdamage to property. The notices referring to your personal safety are highlighted in the manual by a safety alertsymbol, notices referring only to property damage have no safety alert symbol. These notices shown below aregraded according to the degree of danger.DANGERindicates that death or severe personal injury will result if proper precautions are not taken.WARNINGindicates that death or severe personal injury may result if proper precautions are not taken.CAUTIONindicates that minor personal injury can result if proper precautions are not taken.NOTICEindicates that property damage can result if proper precautions are not taken.If more than one degree of danger is present, the warning notice representing the highest degree of danger willbe used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating toproperty damage.Qualified PersonnelThe product/system described in this documentation may be operated only by personnel qualified for the specifictask in accordance with the relevant documentation, in particular its warning notices and safety instructions.Qualified personnel are those who, based on their training and experience, are capable of identifying risks andavoiding potential hazards when working with these products/systems.Proper use of Siemens productsNote the following:WARNINGSiemens products may only be used for the applications described in the catalog and in the relevant technicaldocumentation. If products and components from other manufacturers are used, these must be recommendedor approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation andmaintenance are required to ensure that the products operate safely and without any problems. The permissibleambient conditions must be complied with. The information in the relevant documentation must be observed.TrademarksAll names identified by are registered trademarks of Siemens AG. The remaining trademarks in this publicationmay be trademarks whose use by third parties for their own purposes could violate the rights of the owner.Disclaimer of LiabilityWe have reviewed the contents of this publication to ensure consistency with the hardware and softwaredescribed. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, theinformation in this publication is reviewed regularly and any necessary corrections are included in subsequenteditions.Siemens AGIndustry SectorPostfach 48 4890026 NÜRNBERGGERMANYA5E03775446-01 01/2013 Technical data subject to changeCopyright Siemens AG 2013.All rights reserved

PrefacePurpose of the manualThis function manual provides an overview of the PROFIBUS communicationin combination with SIMATIC STEP 7 V12.STEP 7 V12 is integrated into the powerful graphic Totally Integrated Automation Portal(TIA Portal), the new integration platform for all automation software tools.This function manual supports you in planning a PROFIBUS system.The manual is structured into the following subject areas: PROFIBUS basics PROFIBUS diagnostics PROFIBUS functionsBasic knowledge requiredThe following knowledge is required in order to understand the manual: General knowledge of automation technology Knowledge of the industrial automation system SIMATIC Knowledge about the use of Windows-based computers Proficiency with STEP 7ScopeThis function manual is the basic documentation for all SIMATIC products from thePROFIBUS environment. The product documentation is based on this documentation.The examples are based on the functionality of the S7-1500 automation system.ConventionsSTEP 7: In this documentation we use "STEP 7" to refer to the configuration andprogramming software as synonym for "STEP 7 V12 (TIA Portal)" and later versions.This documentation contains figures of the devices described. The figures may differslightly from the devices supplied.Please also observe notes marked as follows:NoteA note contains important information on the product, on handling of the product and on thesection of the documentation to which you should pay particular attention.PROFIBUS with STEP 7 V12Function Manual, 01/2013, A5E03775446-013

PrefaceAdditional supportInformation on the offers of our Technical Support are available in the appendixService & Support (Page 79).The technical documentation for the individual SIMATIC products and systems isavailable on the Internet The online catalog and the online ordering system are available on the BUS with STEP 7 V124Function Manual, 01/2013, A5E03775446-01

Table of contentsPreface . 31Documentation guide. 72Description. 932.12.1.12.1.22.1.3Introduction to PROFIBUS.9Applications of PROFIBUS DP .9PROFIBUS terminology .11PROFIBUS DP ucture of PROFIBUS networks.16Passive network components for RS 485 networks .18RS 485 cables.18PROFIBUS FastConnect system.19PROFIBUS bus connector .21M12 bus connector .23Bus terminals for RS 485 networks .23M12 bus terminating resistor.23Passive components for optical networks.24Fiber-optic cables.24Plastic and PCF fiber-optic cables .25Glass fiber-optic cables.26Active network components .28Network components in electrical networks.28Network components in optical networks .32Examples for topology .34Topology with RS485 repeater .34Topology with diagnostic repeater .36OLM topology.39WLAN topology .39Connecting PROFIBUS to PROFINET .40Parameter assignment/addressing . 413.1Assigning the DP slave to a DP master.423.2PROFIBUS address.443.3Network settings .453.4Cable configuration .483.5Additional network stations .503.6Bus parameters.513.7Constant bus cycle time.54PROFIBUS with STEP 7 V12Function Manual, 01/2013, A5E03775446-015

Table of contents45ADiagnostics . 574.1Overview . 574.2Diagnostics using the display of the S7-1500 . 584.3Diagnostics with the diagnostic repeater . 594.4I&M data (Identification and Maintenance) . 60Functions . .15.1.8.2Isochronous mode. 61What is isochronous mode?. 61Use of isochronous mode . 62Isochronous applications. 62Sequence of synchronization . 64Requirements for configuration . 65Configuring isochronous mode . 66Diagnostics and interrupt functions. 69Parameter settings for isochronous mode . 70Viewing isochronous mode parameters. 71Change parameters . 725.2Acyclical data exchange. 745.3SYNC/FREEZE groups . 755.4Interrupts . 77Service & Support. 79Glossary . 83Index. 89PROFIBUS with STEP 7 V126Function Manual, 01/2013, A5E03775446-01

1Documentation guideIntroductionThis modular documentation of the SIMATIC products covers diverse topics concerningyour automation system.The complete documentation for the S7-1500, ET 200SP and ET 200MP systems consistsof the respective system manual, function manuals and device manuals.The STEP 7 information system (Online Help) also helps you configure and program yourautomation system.Overview of the additional documentation for PROFIBUSThe table below lists additional documents which supplement this description of PROFIBUSand which are available on the Internet.Table 1- 1Documentation for PROFIBUSSubjectDocumentationMost important contentsPROFIBUS siemens.com/w2/efiles/pcs7/pdf/76/prdbrief/kb profibus en.pdf) brochure Overview Application examples Hardware SoftwareSTEP 7 (TIA Portal)STEP 7 Professional V12 online helpSystem diagnosticsSystem Diagnostics (http://support.automation.siemens.com /WW/view/en/59192926) function manualOverviewS7-1500 automation system (http://support.automation.siemens.com /WW/view/en/59191792) ET 200SP distributed I/O systemApplication planningDescription of thesystemsConfiguring and programmingwith the engineering software(http://support.automation.siemens.com /WW/view/en/58649293) ET 200MP distributed I/O ew/en/59193214)Diagnostic ssioningI&M dataPROFIBUS with STEP 7 V12Function Manual, 01/2013, A5E03775446-017

Documentation guideSubjectDocumentationNetworksPROFIBUS network manual 35222591) Diagnostic repeaterModules of the S7-1500automation systemMost important contentsBasics of PROFIBUSnetworksNetwork configuration Active and passivecomponents Technical productspecifications Installation instructionsSIMATIC NET Manual: Twisted-pair and fiber-optic networks (http://support.automation.siemens.com /WW/view/en/8763736)Ethernet networksManual Diagnostic repeater for PROFIBUS DP (http://support.automation.siemens.com /WW/view/en/7915183)Configuration optionsNetwork configurationNetwork componentsInstallationWiring Commissioning DiagnosticsManuals for the S7-1500 product family 56926743) Interrupt, error and systemmessagesTechnical specifications(including communicationservices)Additional information on PROFIBUS is available on the Internet (http://www.profibus.com).SIMATIC manualsAll current manuals for SIMATIC products are available for download free of charge on theInternet ).PROFIBUS with STEP 7 V128Function Manual, 01/2013, A5E03775446-01

Description2.12Introduction to PROFIBUSWhat is PROFIBUS?PROFIBUS is a bus system that networks automation systems and field devices that arecompatible with PROFIBUS. As communication medium for the field level, PROFIBUS isan important part of Totally Integrated Automation (TIA).The different communication networks can be used independent of one another or theycan be combined with each other.PROFIBUS protocolsPROFIBUS DP (distributed I/O) is a communication network for the field level according toIEC 61158-2 / EN 61158-2 with the hybrid access protocols token bus and master-slave.The networking takes place by means of two-wire lines or fiber-optic cables.Data transmission rates of 9.6 kbps to 12 Mbps are possible.PROFIBUS PA is the PROFIBUS for process automation (PA). It connects thePROFIBUS DP communication protocol with the MBP (Manchester Bus Powered)transmission technology to IEC 61158-2.PROFIBUS PA networks can be designed based on shielded, twisted two-wire linesintrinsically safe and are therefore suitable for hazardous areas (Ex zones 0 and 1).The data transmission rate is 31.25 kbps.2.1.1Applications of PROFIBUS DPIntroductionThe efficiency of control systems is not determined by automation devices alone,but depends to a large extent on the overall configuration of an automation solution.This includes a powerful communication system in addition to plant visualization andoperator control and monitoring.The STEP 7 engineering tool supports you during the engineering and configurationof an automation solution.PROFIBUS with STEP 7 V12Function Manual, 01/2013, A5E03775446-019

Description2.1 Introduction to PROFIBUSApplications of PROFIBUS DPThe PROFIBUS network offers wireless connection of several controllers, components andsubnets as electrical network, optical network or by using links. Sensors and actuators arecontrolled centrally by means of PROFIBUS DP.The example shows connection options to PROFIBUS DP:SIMATIC ControllerSIMATIC HMI7, 352),%86RepeaterDP/DP coupler'LDJQRVWLFUHSHDWHU352),%86,:/ 1 3%/LQN 31 ,2,( 3% /LQN6& / 1&(: 352),1(7 ,QGXVWULDO (WKHUQHWFigure 2-1'3 6 L/LQN GYDQFHG 6 ,QWHUIDFHConnection options to PROFIBUS DPObjectives of PROFIBUS DPDistributed automation systems are increasingly used in production and process automation.This means a complex control task is divided up into smaller, more transparent subtasks withdistributed control systems. This creates a high demand for communication between thedistributed systems.Distributed systems offer the following benefits: An independent and simultaneous commissioning of individual devices is possible. Small, manageable programs Parallel processing due to distributed automation systems Reduced response times Higher-level structures can take on additional diagnostic and logging functions. Increased plant availability because the rest of the overall system can continue to workwhen a subordinate station fails.PROFIBUS with STEP 7 V1210Function Manual, 01/2013, A5E03775446-01

Description2.1 Introduction to PROFIBUS2.1.2PROFIBUS terminologyDefinition: Devices in the PROFIBUS environmentIn the PROFIBUS environment, "device" is the generic term for: Automation systems (for example, PLC, PC) Distributed I/O systems Field devices (for example, hydraulic devices, pneumatic devices) Active network components (e.g., diagnostic repeater, optical link module) Gateways to AS interface or other fieldbus systemsPROFIBUS with STEP 7 V12Function Manual, 01/2013, A5E03775446-0111

Description2.1 Introduction to PROFIBUSDevices with PROFIBUS DPThe figure below shows the most important components with PROFIBUS DP.The table below lists the designations of the individual components.16 3* 3&23352),%8646 (7 6376

in combination with SIMATIC STEP 7 V12. STEP 7 V12 is integrated into the powerful graphic Totally Integrated Automation Portal (TIA Portal), the new integration platform for all automation software tools. This function manual supports you in planning a PROFIBUS system. The manual is str

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