PCS7 With Profibus

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Field Automation with

PROFIBUS and SIMATIC PCS 7


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PROFIBUS

Distributed automation solutions on thebasis of open fieldbuses are currentlythe standard in many sectors of the pro-duction and process engineering indus-tries. Only fieldbuses permit full use ofthe functional advantages of digitalcommunication such as improved reso-lution of measured values, diagnosticsfacilities and remote parameterization.

PROFIBUS is currently the most success-ful open fieldbus with a large installedbasis for a wide range of applications.The IEC 61158 / EN 50170 standardguarantees future compatibility of yourinvestments.

PROFIBUS is suitable for fast com-munication with distributed I/Os(PROFIBUS DP) in production automa-tion, and for communications tasks inprocess automation (PROFIBUS PA). It isthe first fieldbus system which coversthe requirements of both sectors usingidentical communications services.

The transmission method ofPROFIBUS PA is tailored to the require-ments of the process industry. The stan-dardized communications servicesguarantee interoperability between

field devices from different vendors andremote modification of field deviceparameters during operation.

With SIMATIC PDM (Process DeviceManager), an integrated and cross-ven-dor tool for configuring, parameteriza-tion, commissioning and diagnostics ofintelligent process devices on thePROFIBUS, it is possible to configure alarge number of process devices fromdifferent vendors using oneuniformgraphical user interface.

Theory of operation

PROFIBUS PA is the expansion ofPROFIBUS DP with process-orientedcomponents for direct connection ofactuators and sensors. The RS 485transmission system used forPROFIBUS DP has been replaced forPROFIBUS PA by the transmissionsystem according to IEC 61158. Thissystem is internationally standardizedand can also be used for intrinsically-safe applications.

PROFIBUS PA uses the same communi-cations protocol as PROFIBUS DP; thecommunications services and telegramsare identical.

With PROFIBUS PA, information and thepower supply to the field devices can betransmitted on one two-wire cable.

PROFIBUS PA can be used in standardenvironments just as in potentiallyexplosive atmospheres. When using in

potentially explosive atmospheres, thePROFIBUS PA and all connected devicesmust be designed with the type of pro-tection Ex [i].

The uniform protocol of PROFIBUS DPand PROFIBUS PA permits the connec-tion of the networks and thus the com-bination of processing performance andintrinsically-safe transmission.

PROFIBUS International

The conformity and interoperability testscarried out by laboratories authorized byPROFIBUS International (PNO) togetherwith the PNO device certification guaran-tee that the quality and functionality arealso provided in multi-vendor installa-tions.

You can find further information onPROFIBUS in the PNO product catalog.The PNO supports the further technicaldevelopment, standardization and world-wide marketing of PROFIBUS.

The catalog provides a summary of a widerange of products and services associatedwith PROFIBUS. It represents the offersfrom suppliers worldwide, and is avail-able online on the Internet at:

www.profibus.com

highlightsAdvantages of distributed field automation with PROFIBUS PA:

Totally integrated modular systemfrom sensor up to the managementlevel opens up new plant concepts

Problem-free interchanging of fielddevices from different vendorswhich comply with the standardprofile

Connection of transmitters, valves,

actuators etc. to the network Implementation of intrinsically-safe

applications with use of fieldbus inpotentially explosive atmospheres

Easy installation with two-wire cablefor common power supply and datatransmission

Reduced cabling costs as result ofsavings in material and routing

Reduced configuring costs resultingfrom simple, centralized engineer-ing of field devices (PROFIBUS PAand HART with SIMATIC PDM, alsocross-vendor)

Fast, fault-free installation

Low servicing costs thanks to sim-pler cabling and plant structure, aswell as comprehensive diagnosticsfacilities

Greatly reduced commission costsas result of simplified loop check

Scaling/digitization of measuredvalues already carried out in fielddevice; thus no conversion requiredin SIMATIC PCS 7.

This results in:

Lower hardware costs Shorter startup time Problem-free maintenance Low-cost software engineering Higher operational reliability.


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PROFIBUS PAin the SIMATIC PCS 7 environment

SIMATIC PCS 7 is the process control sys-tem in the Siemens automation net-work "Totally Integrated Automation"(TIA). It uses standard hardware andsoftware components from theTIA family such as controllers, PCs, com-munications functions and distributedI/Os. The uniform data management,communication and configurationcapabilities of TIA offer an open plat-form for advanced, future-oriented andeconomical automation solutions in allsectors of the process industry, manu-facturing industry and hybrid industries.The use of worldwide standards meansthat the system is open and flexible inmany respects. At the field level, a widerange of standardized field devices(PROFIBUS DP/PA, HART) can be inte-grated.

The adjacent Fig. shows the integrationof PROFIBUS PA in SIMATIC PCS 7. Themost important features of the configu-ration are the optimized communica-tion throughout all hierarchical levelsand central engineering for all compo-

nents.Communication between the auto-mation system and field devices onPROFIBUS PA takes place via representa-tive blocks in the CPU. There are fiverepresentative blocks (analog input/out-put, digital input/output, totalizer) withwhich all field devices are covered. Theinputs and outputs of these blocks"represent" the field devices in the CPUto facilitate access to the operator sys-tem via the plant bus. The blocks areconfigured in the central engineeringsystem. The configuration data are alsogenerated there and loaded duringcommissioning into the DP/PA link andthe field devices.

The SIMATIC PDM parameterizationsoftware is used for commissioning anddiagnostics of the field devices. It is exe-cuted in the engineering system andcan communicate directly with fielddevices via the communication levels.

Up to 10 DP lines can be used per CPUfor access to the field level. Since allfield components are connectedtogether on the PROFIBUS DP, it is easyto adapt the field instrumentation tothe physical characteristics of the plant,e.g. one DP line per subsystem.

Safe communication withPROFIBUS DP (PROFISafe)

Now that PROFIBUS DP hasextended the total inte-gration of distributedautomation to the processenvironment by meansof the PROFIBUS PA ver-sion (IEC 1158-2), the

PROFISafe profile expands thePROFIBUS DP communication betweenCPU and process I/O by safety-relatedfunctions for the protection of persons,plants and the environment.

PROFISafe permits coverage of theextremely fast response times in theproduction sector on the one hand andthe extremely low-power instrumentmode in the process sector on the otherby one totally integrated solution.

A safety bus implemented withPROFISafe is one of the open systems.The defined interfaces and procedurespermit use of a permanently increasingnumber of safety devices (F hosts andF slaves) and systems with a flexibleconstellation. Both standard and safety-oriented communication are carried out

on one single cable, which not onlyresults in enormous saving of cablingrequirements and stocking of parts, butalso provides the advantage of retrofit-ting. Both standard and safety-orientedcommunication can also be distributedon different PROFIBUS lines if required.

The safety measures are encapsulatedin the communication stations. Thisencapsulation means that the usefulload of standard PROFIBUS telegrams isextended by a few bytes of informationwhich guarantee safe communication.

The PROFISafe profile supports fail-safecommunication for applications up tosafety class SIL 3 according toIEC 61508, up to requirement classAK 6 according to DIN V 19250/DIN VVDE 0801, and up to category 4 accord-ing to EN 954-1.

Availability is an important factor withsafety systems, and can be increasedusing a redundant design of the com-plete system. This was taken into con-sideration right from the beginning ofthe PROFISafe development.


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SIMATIC PDM

SIMATIC PDM (Process Device Manager)is a totally integrated and cross-vendortool for configuring, parameterization,commissioning and diagnostics of intel-ligent field devices and components.SIMATIC PDM enables the configuringof a large number of process devicesfrom different vendors using onesoft-ware and oneuniform user interface.This results in surety and significantlysaves costs for investments, trainingand follow-up costs.

SIMATIC PDM can be used in two man-ners:

As an integral tool in STEP 7, and thusas an integral component of theSIMATIC PCS 7 engineering system.

Independent of system supplierson a PC/programming device withWindows 95/98/ME and WindowsNT/2000/XP.

The display of device parameters andfunctions is uniform for all supportedprocess devices, and independent oftheir communications link, e.g. viaPROFIBUS DP/PA or the HART protocol.

The core functions of SIMATIC PDM

include the setting and modifications of

device parameters,

comparison of correct and actualparameter settings,

testing for plausibility of inputs,

simulation,

diagnostics,

administration, and

commissioning functions, e.g. testingof the signal loops of process devicedata.

In addition, SIMATIC PDM enablesonline monitoring of process values,alarms and status signals of the device.

Configuring of process devices: user interface of SIMATIC PDM

Hardware view in HW Config

Parameter view

Lifelist with detailed anddiagnostics informationon the field devices


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User interface

The graphical user interface ofSIMATIC PDM complies with theVDI/VDE GMA 2187 and IEC 65/349/CDregulations. Even devices with severalhundred parameters can be processedclearly and rapidly. SIMATIC PDM can beused for extremely simple navigation inhighly complex stations such as remoteI/Os up to the connected field devices.Several views are available to operators:

Hardware project view(integrated in SIMATIC PCS 7)

Process devices are configured withinSTEP 7 / SIMATIC PCS 7 usingHWConfig and displayed graphicallyor in tabular form.

Process device plant view a tag-based view that includes display ofdiagnostics information

The devices configured in HWConfigor in the process device network vieware also automatically created in theprocess device plant view.

Parameter view for parameterizationof process devices

The parameters of a selected processdevice can be displayed, modified andsaved here. Communication to thedevice is also established here. Thisparameter display is started followingdouble clicking on a process device inone of the other views.

Lifelist view for identification/diag-nostics as well as for online parame-

terization of the process devices Process device network view (for

stand-alone application)

The hierarchical structure of net-works, communications componentsup to process devices can be config-ured here. When integrating inSTEP 7 / PCS 7, these data can beimported, thus avoiding doubleinputs.

Central device operation

The overview display shows the possi-ble connection points of SIMATIC PDMin a system.

The engineering stations on whichSIMATIC PDM is installed are connectedon the plant bus. Working on oneproject database using differentstations is possible via the LAN.

Devices can be connected in differentmanners in the field: PROFIBUS PAdevices to DP/PA couplers and links, orHART devices to the HART analoginput/output modules of the ET 200Mor ET 200iS. HART devices can also beconnected to conventional analoginput/output modules.

A HART multiplexer is shown onthe right via which all connectedHART devices can be accessed.


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SIMATIC PDM

The SIPART DR controllers and theSIMOCODE are representatives ofPROFIBUS DP devices in the Fig. onpage 5.

The PROFIBUS DP is connected here to aSIMATIC S7-400 automation system.The S7-400 permits connection ofseveral DP segments.

Routing

Routing allows access from a centrallocation commonly from the engi-neering station to device parametersand to the status of any process device

that is part of an installation. Reconnec-tion of the DP interface of the PC to thecorrect DP segment in each case issuperfluous, thus eliminating a possiblesource of faults.

It is then possible to:

Read diagnostics information fromthe field devices

Modify device settings Calibrate and adjust field devices

Monitor process values

Generate simulation values in thefield device

Modify the field device parameters.

Communication

SIMATIC PDM supports several commu-nications protocols and components forcommunication with the followingdevices:

Devices with PROFIBUS DP interface

These are connected directly on thePROFIBUS DP. An example is theSIPART DR20 process controller.

Devices with PROFIBUS PA interface

e.g. the SITRANS P transmitter

Remote I/O stations, e.g. ET 200M

The PROFIBUS PA devices supportedby SIMATIC PDM are connected to thePROFIBUS DP segment via a DP/PA linkor DP/PA coupler.

The fully integrated PROFIBUS devicescan be parameterized, as well asalmost all PROFIBUS devices with thefollowing PA profiles of versions 2.0and 3.0:- Pressure and temperature- Level and flow- Actuators- Discrete I/Os- Analyzers (only PA profile

version 3.0)Devices with HART interface

These devices can be connected indifferent manners:- Via the SIMATIC ET 200M distributed

I/O station with the HART modules- Via the ET 200iS distributed I/O sta-

tion with HART on PROFIBUS accord-ing to PNO

- Via a HART modem with which apoint-to-point connection is estab-lished between a PC or engineeringstation and the HART device

- Via HART multiplexers present in theHART server of the HCF (HART Com-munication Foundation).

Further HART devices can be parame-terized in addition to the fully-inte-grated, HART-compatible devices.

Controllers with serial SIPART DRcommunication via RS 232 / RS 485

Controllers from the SIPART range canbe parameterized via the so-calledSIPART DR network.

Device Description Language

SIMATIC PDM supports field devicesconforming to the PROFIBUS PA profiledescriptions provided by PROFIBUSInternational (PNO), as well as field

devices which are supported by an Elec-tronic Device Description (EDD) andHART Device Description (HART-DD).

The design and functions of the fielddevices are described by the ElectronicDevice Description Language EDDLspecified by the PNO. SIMATIC PDMautomatically creates its GUI with thecorresponding field device informationusing these descriptions. The HART fielddevices described by HART-DDL are inte-grated into SIMATIC PDM using the HCFcatalog (Hart Communication Founda-tion). HART-DDL is a widely accepted

standard and is strongly supported bydevice vendors.

Additional field devices from Siemensas well as devices from other vendorscan be simply integrated into SIMATICPDM by importing their device descrip-tions (EDD, GSD).

Access protection

SIMATIC PDM supports two differentgroups of users: specialists and mainte-nance engineers. The maintenanceengineer can modify the operatingdata, the specialist can access all

parameters and functions.A password can be assigned as requiredas access protection for specialists.


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Diagnostics with PROFIBUS PA and SIMATIC PCS 7

Status information from PROFIBUS PAdevices

Each PROFIBUS PA device delivers a sta-tus together with each measured value.

This status contains a variety of diag-nostics information on the measuredvalue delivered by the device, in accor-dance with the profile definition ofPROFIBUS International (PNO).

The standard diagnostics informationdelivered by the PROFIBUS PA devicesincludes e.g.:

Device faults,

Maintenance requests,

Operating mode (automatic or localoperation) of a positioner,

Configuration fault etc.

Compression of information usingstandard SIMATIC PCS 7 functionblocks

The status information can be inter-preted, compressed or output as alpha-numeric messages in SIMATIC PCS 7using standard CFC blocks, alwaysbased on the PNO profile definition.

Practice-oriented PCS 7 diagnosticsblocks for Siemens field devices

In addition to this, practice-orienteddiagnostics blocks are available which

are specially tuned to Siemens fielddevices and are ready to use.

These blocks provide precise messagetexts optimally matched to the respec-tive device which are more comprehen-sive than those of the standard definedin the profile. Examples include:

"Deviation fault" (SIPART PS2), e.g.resulting from compressed air failure(also see Fig. above)

"Function check"(ULTRAMAT/OXYMAT).

Furthermore, the diagnostics blocksprovide evaluation of the status with

respect to time, e.g. by the message"Continuous overload".

For specific field devices, the diagnos-tics blocks also have an interface foruser functions which would otherwisehave to be configured in addition, e.g.autocalibration for gas analyzers.

This increased degree of convenience isoffered for the following PROFIBUS PAfield devices from Siemens, e.g.SITRANS P, SITRANS T, SITRANS F US,SITRANS LR, SIPART PS2, ULTRAMAT,OXYMAT or SIPAN.

The diagnostics messages permit opera-tors to react more rapidly, and to informthe maintenance personnel moreexactly. Operators know, for example,that a device has to be replaced in thenear future, or that a device is currentlybeing configured or calibrated and thuscannot carry out any measurements.

These messages are displayed on theoperator station (OS), and are saved inthe OS message archive together with atime stamp and the tag number.

Specific maintenance informationusing SIMATIC PDM

Detailed information which is excep-tionally appropriate as a decision basisfor further actions can be called fromfield devices using SIMATIC PDM, e.g.

whether the device is positioned in anunsuitable location resulting in anexcessively high temperature for themeasuring electronics, or whether it hasto be tested and repaired by a mainte-nance engineer. Thus service measurescan be planned before a device fails.

Integration in MES systems

If required, the diagnostics messagescan also be evaluated by host comput-ers via the standard interfaces ofSIMATIC PCS 7, e.g. via the OPC inter-face.

Diagnostics display (left) on the operator station with plant topology. One field device is faulty (red symbol) on the PROFIBUS PA line.

The associated message "Deviation" is displayed in the message line. Clicking the faulty field device displays a process view (right) in which an

operator can recognize that the inlet valve has been closed and can no longer be opened. SIMATIC PDM can be used if required to read further

detailed information from the field device.


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DP/PA coupler and DP/PA link

PROFIBUS-DP/PA transition

To guarantee a problem-freetransition between PROFIBUS DP andPROFIBUS PA with their different trans-mission systems, the SIMATIC rangeprovides the DP/PA coupler andDP/PA link as gateways. Their respectiveapplication depends on the plant size,the required performance, and theautomation system used:

The DP/PA coupler is used for smallquantity breakdowns (signal quanti-ties) and low timing requirements

The DP/PA link is used for large quan-tity breakdowns and high timingrequirements.

DP/PA link

Application

The DP/PA link is a very simplegateway that links PROFIBUS DP andPROFIBUS PA together in a mannerwhereby data transmission decouplingis retained. PROFIBUS DP andPROFIBUS PA can thus be combinedwithout influencing the processing per-formance of PROFIBUS DP.

The DP/PA link permits the design oflarge systems with extensive addressvolumes and demanding requirementswith respect to cycle time. It can beoperated on standard PROFIBUS DPmasters.

Mode of operation

The DP/PA link functions as a slave onthe PROFIBUS DP and as a master on thePROFIBUS PA. From the viewpoint of theautomation system or process controlsystem, the DP/PA link is a modularslave. The individual modules of thisslave are the field devices connected to

the lower-level PROFIBUS PA system.The field devices are addressed indi-rectly via the DP/PA link.

Thanks to data transmission decou-pling, the maximum transmission rateof up to 12 Mbits/s can be utilized onthe PROFIBUS DP side.

The addressing capacity of the systemis considerably increased due to the factthat up to 31 field devices can be con-nected to a DP/PA link, but theDP/PA link only reserves onePROFIBUS DP address.

Design

The DP/PA link is of modular designaccording to the S7-300 format.It comprises the IM 157 interfacemodule and one or more DP/PA couplers

in the versions either for hazardous ornon-hazardous applications.

Use of active bus modules as the back-plane bus permits the hot swapping ofindividual modules during operation aswell as a redundant design for thePROFIBUS DP interface. High-availabilityapplications are therefore possibletogether with the AS 414H/AS 417Hautomation systems.

Versions of the DP/PA link for hazardousor non-hazardous applications are alsoconfigurable by combination of theIM 157 with hazardous or non-hazard-ous versions of the DP/PA coupler.

This modular system can be extended toup to 5 PROFIBUS PA lines per DP con-nection. These lines are physically iso-lated as far as the power supply is con-cerned, but constitute one bus systemfor communications aspects.


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Intelligent PROFIBUS-compatible field devices

Siemens offers a complete range ofintelligent field devices for use with theSIMATIC PCS 7 process control systemthat allow automation and control atthe field level:

Process devices

Analyzers

Weighing systems

Panel instruments

Drives

The field devices identified by this

symbol can be parameterizedusing SIMATIC PDM.

Process devices

The process devices are available aseither PROFIBUS or HART compliant ver-sions.

Further technical data and orderinginformation on these process devicesare available at:

www.siemens.com/fielddevices

Transmitters forpressure measurements

The SITRANS P transmitters are suitablefor flow, pressure and level measure-ments of corrosive and non-corrosivegases, vapors and liquids. Various mea-suring cells are used for the differentrequirements and permit optimumaccuracy for the respective task. With acompletely welded measuring cell, theSITRANS P is vacuum-tight, has anexceptional over-pressure tolerancecapability, resulting in a long service lifewith unmatched operating perfor-

mance. These transmitters are designedfor absolute and differential pressuresfrom 1 mbar to 400 bar.

PDM

PDM

Flow measurements

The SITRANS F US ultrasonic flowmeterwith the patented helical passage ofsound is used to measure flow of con-ductive and non-conductive liquids, e.g.solvents, organic liquids and conden-

sates.In addition to the signal for the flow, thedevice delivers additional data fromwhich information can also be derivedon the product quality.

The main advantages are the high mea-suring accuracy, the flow without pres-sure losses, the wide dynamic range,the multi-sensor properties, and the lowmaintenance costs since no movingparts are present.

The SITRANS F M electromagnetic flow-meter measures the flow of electricallyconductive media above 0.008 S/cm.

Homogeneous liquids can be measured,including flowing media with solidparticles such as slurries, pastes andsludges. Flow velocities up to 12 m/s arepermissible.

Nominal diameters from DN 2 toDN 2000 are available, together withflanges according to DIN, ANSI and fur-ther standards. Liners are available withsoft and hard rubber, with NOVOLAK forcorrosive media up to 130 C, and withPTFE for temperatures up to 180 C.

Temperature measurements

SITRANS T is used to measure tempera-tures. Its universal input stage providesflexibility such that all common temper-ature sensors and DC voltage sourcescan be connected:

Pt 100 resistance thermometers, Thermocouples,

Resistance-based sensors/potentiom-eters from 24 to 6000 and

DC voltage sources with spans from17 mV to 1120 mV.

The complete standardized tempera-ture range can be measured for the var-ious sensors. The characteristics of allsensors are linearized.

PDM PDM

SITRANS T

SITRANS P SITRANS F US SITRANS F M


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Intelligent PROFIBUS-compatible field devices

Level measurements

SITRANS LR 400 is a high-frequencyradar level meter for the process indus-try, featuring high accuracy and widemeasuring ranges.

SITRANS LR 300 is a level meter thatoperates per the Siemens patentedmicrowave pulse technology, andprovides exceptional measurement reli-ability even under difficult operatingconditions. The device can be used onpressurized vessels, in explosive or non-explosive media, in applications where

large amounts of steam or dust arepresent, and in high temperature appli-cations.

Besides these two level instruments,Siemens portfolio also includes variousultrasonic level meters for a variety ofapplications. These include compactdevices for measuring liquid, solid orsludge levels, and a system for monitor-ing and controlling pump stations.

Meters for capacitive level measure-ments

SITRANS LC 500 is an ideal capacitivelevel meter for use under extreme tem-

perature and pressure conditions. TheSiemens patented active shield technol-ogy protects it from dirt, deposits,steam and condensation.

The SITRANS LS level switches are usedto determine predefined levels of bulkmaterials, sludges or interfaces. Themeasurement is based on the non-con-tact ultrasonic principle or using highly-sensitive capacitive electrodes. A widerange of different versions is available,including those for use at high pres-sures and temperatures or sanitary ver-sions for the food and drink industry or

the pharmaceutical industry.

Intelligent positionerfor pneumatic control valves

The SIPART PS2 electropneumaticpositioner is used with linear or quarter-

turn control valves and air-operateddampers. The positioner ensures thatthe control valve performs as com-manded by the control system and alsoprovides feedback to the control systemregarding the actual valve position at alltimes. The SIPART PS2 positioner isavailable in PROFIBUS and HART compli-ant versions. The user is able to config-ure many advanced functionalities suchas a min-stop position, a fail-safe posi-tion, etc. via a comprehensive choice ofconfigurable parameters in the posi-tioner.

SIPART PS2 is also available for use in

hazardous areas.

PDM

PDM

Analyzers

Liquid analysis

Siemens liquid analyzers under thebrand SIPAN are available for measure-ment of pH, conductivity and dissolvedoxygen. These analyzers arePROFIBUS PA compliant and arepowered over the bus. Intrinsically-safeversions are available for applications inelectrically hazardous areas.

Gas analyzers

ULTRAMAT 6 operates on the dualbeam NDIR principle, and continuouslyand selectively measures IR-active gasessuch as CO/NO/SO2, CO2, N2O and CH4.

OXYMAT 6 operates according to theparamagnetic alternating pressure prin-

ciple, and is used to measure oxygen ingases.

CALOMAT 6 measures the specificthermal conductivity to determine theconcentration of hydrogen and noblegases.

FIDAMAT gas analyzers have a flameionization detector to measure hydro-carbons. The measurement is compo-nent-specific, and not just class-specific.As a first approximation, the result isproportional to the number of C atomsin the respective molecule.

PDM

PDM

SITRANS LRSIPART PS2

capacitivelevel measurements

Analyzers


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Weighing systems

Weighing modules

Net weight and proportioning scales forindustrial processes can be configuredquickly and efficiently using predefinedscales blocks.

For SIMATIC PCS 7, Siemens offers con-figuration packages with blocks for theSIWAREX M and SIWAREX U weighingmodules as add-on products. Theseblocks permit simple linking of theweighing modules into the engineeringsystem, and also easy operation of thescales from the operator system. Thescales faceplate in the operator systemalso provides important diagnosticsinformation for the operating person-nel.

Integral message response and mainte-nance functions such as the reading orwriting of all weighing parameters pro-vide a high level of system availability,and thus short down times.

Siemens-Milltronics weighingsystems

The range comprises:

Precision and torque scales for reli-able and continuous weighing of bulkmaterials

High-performance conveyor scalesfor measuring ranges from 45 kg/h upto 725 t/h

Low-maintenance bulk flow meterwith high reliability and repeatability(even for difficult mixing and batchfunctions)

Panel instruments

Process controllers

The SIPART DR19 and DR21 process con-

trollers designed for general processcontrol provide a single-loop controlsolution at an affordable price. Theseoffer a wide range of preconfiguredfunctions for process control which canbe deployed by users without any pro-gramming knowledge or engineeringeffort. The built-in self-tuning algo-rithms in the SIPART DR19 and DR21makes the task of commissioning thesecontrollers even easier.

These two process controllers are con-nected to the SIMATIC PCS 7 automa-

PDM

tion systems via PROFIBUS DP. TheSIPART DR19/21 function blocks areavailable as add-on products forSIMATIC PCS 7. Each function block hasits associated OS faceplate which showsthe control and display elements of thecorresponding process controller.

Drives

Motor management

The SIMOCODE-DP motor protectionand control device is primary used in themotor control centers (MCC) of processindustry plants. It offers the followingfunctions:

Comprehensive motor protection andmotor feeder monitoring

Integral, software-based control pro-grams for all typical, switched motor

applications Detailed motor and plant diagnostics Integral PROFIBUS DP interfaceIn particular for applications in thechemical industry, SIMOCODE-DP pro-vides safe isolation and complies withthe NAMUR regulations.

SIMOCODE-DP can be integrated simplyinto the SIMATIC PCS 7 process controlsystem using the PCS 7 function blockSIMOCODE-DP offered as an add-onproduct, and visualized in the operator

station using the associated OS face-plate.

Variable Frequency Drives

The MASTERDRIVES range is universal

and modular. The power range extendsfrom 0.55 up to 2300 kW. All commoninternational power supplies from 200to 690 V are covered.

The MICROMASTER drive is a standardfrequency converter in the power rangefrom 0.12 up to 90 kW, and can be usedfor numerous drive applications withvariable speeds. The converter is partic-ularly suitable for applications withpumps, fans and conveying equipment.

The add-on product "Drive ES PCS 7" canbe used to control, operate and monitorthe drives using the SIMATIC PCS 7 pro-

cess control system. Parameterization,commissioning and diagnostics of thedrives can be carried out with the add-on product "Drive ES Basic" which can beintegrated in the SIMATIC Manager.

PDM

SIPART DR

SIMOCODE-DP

Weighing systems

MASTERDRIVES

MICROMASTER

SIPART DR


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Siemens AGAutomation and DrivesIndustrial Automation Systems

www.siemens.com/simatic-pcs7Order No. E86060-A4678-A121-A2-7600Printed in the Federal Republic of Germany

Siemens AG 2003Subject to change without prior notice

Theinformationprovidedinthisbroch

urecon-

tainsmerelygeneraldescriptionsorcharacteris-

ticsofperformancewhichincaseofactualuse

donotalwaysapplyasdescribedorwhichmay

products.

Anobligationtoprovidethe

respective

characteristicsshallonlyexistifexpre

sslyagreed

inthetermsofcontract.Availabilityandtechni-

calspecificationsaresubjecttochan

gewithout

Technical specifications

Technical specification DP/PA coupler IM 157 (for DP/PA link) HART modules

Function Bus coupling of PROFIBUS DP (45.45 kbits/s)

and PROFIBUS PA (31.25 kbits/s)

Bus coupling of PROFIBUS DP(9.6 kbits/s to 12 Mbits/s, slavefunctions) and PROFIBUS PA

Implementation of the DP/PAlink function together with oneor more DP/PA couplers

For coupling HART devices toPROFIBUS DP

Power supply

Supply Mains backup Mechanical design

24 V DC

20 ms

4-pole screw terminal

24 V DC

Current consumption max. 400 mA (Ex version)

max. 750 mA (Non-Ex version)

max. 100 mA (in DP/PA link)

max. 200 mA (in Y-link)

Power loss approx. 7 W(Ex- and Non-Ex version)

approx. 2 W (in DP/PA link)

approx. 4 W (in Y-link)

PROFIBUS DPconnection

9-pin Sub-D plug, electrically isolated and floating Via IM 153-2 interface module(ET 200M)

PROFIBUS-PAconnection

Intrinsically-safe version

Non-intrinsically-safe ver-sion

2-pole screw terminal, perma-nently integrated terminatingresistor,[EEx ia]: output currentmax. 110 mA

4-pole screw terminal,selectable terminating resistor,

output current max. 400 mA

Transmitter connection 2-wire connection(HART, 4...20 mA)4-wire connection (0...20 mA)

Displays DP bus active (yellow)PA bus active (yellow)24 V DC(green)

System fault (red)DP bus fault (red)PA bus fault (red)24 V DC(green)

Common fault LED (red)Channel-specific fault (red)HART status (green)

Parameterizable resolution(bits+sign)

Input10+sign/13+sign/15+signOutput 12+sign

Load impedance Output up to 650

Temperature range [EEx ia]: 0...+60 C[EEx ib]: -25...+60 CNon-Ex: -25...+60 C

-25...+60 C 0...+60 C

Packaging system S7-300 format, double-widthmodule (80 mm),mounting on S7-300 rail

S7-300 format, single-width module (40 mm),mounting on S7-300 rail

Type of protection Ex version [EEx ia] II C Ex version [EEx ib] II C

Dimensions (W x H x D)inmm

80 x 125 x 130 40 x 125 x 130 40 x 125 x 120

PCS7 With Profibus

Documents

Transcript of PCS7 With Profibus