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ScalabilityمعماریPCS7،یکسیستمکنترلیکپارچهوهماهنگرابرایتمامیهایشبخیکپلنت
،فرآیندیازمرحلهآغازینتامرحلهنهاییکهبهتولیدمحصوالتختم،شودیمارائهدهدیم.این
مسیستبهدلیلطراحیماژوالرومعماریباز،آنازقابلیتپذیریسمقیاوپذیرفانعطایخوبی
برخوردارباشدیم.لذاقابلیتبهکارگیریدرهایتپلنکوچکباتعدادIOحدود160سیگنال
(،موتورشیر،کنترلسنسورو....)نظیرهایمسیستآزمایشگاهیودرهایمسیستبزرگتربامعمای
دهندهسسروی/گیرندهسسروی(Client-Server)وباتعدادسیگنالورودیخروجیتقریبی60
هزارتاراداراباشدیم.
TIA :Totally IntegratedAutomation
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PCS 7 system is a platform supplying the complete spectrum of automation componentsin the process,hybrid and discrete (manufacturing)
industrial sectors.
With application and innovation ofnew technologies,industry specificcontrol systemswhich weredivided aremergingand overlapping.
PCS 7 is capable to supply hardwareand software componentsacross theindustrial sectors.
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افزارتسخسیستمESسیستممهندسییککامپیوترIPCباشدیمکهبرایانجامکارهایمهندسیسیستمPCS7بکار
رودیم.
نرمافزارسیستمESمجموعهابزارهایSIMATICباشدیمکهبررویایستگاهمهندسینصبگرددیموبااستفادهاز
اینمجموعه،ابزارهایهپروژPCS7ایجادومدیریتگرددیم.عمدهاینهارکاعبارتاستاز:
نوشتنبرنامهالجیککنترلودانلودهبرنامالجیکبههاهکنندلکنتر(AS)
عیبیابیبرنامهکنترل
طراحیبخشاستاتیکصفحاتمانیتورینگ(HMI)ودانلودبرنامهHMIبههایرکامپیوتOS
کالیبراسیونهایهدستگادفرآینمانندهارترنسمیت(PDM: Process Device Manager)
شبکهPCS7ارتباطبینهایمسیستESوASتواندیمازطریقخطوطهایهگذرگاMPIوPROFIBUSصورت
پذیرد.ولیشبکهاترنتصنعتیبهدلیلداشتنسرعتباالتربهترینگزینهبرایبارگذاری
هایهبرنامباحجمباالباشدیم.ازاینرومسیستESبررویهایهگذرگااترنتمتصلبهASو
OSقرارگیردیم.
درصورتیکهساختارOSبهصورتمدلگیرندهسسروی/دهندهسسروی(Client/Server)،باشد
برایESبهدوعددکارتشبکهنیازاست.
PCS7 ProjectsEngineering of PCS 7 projects on ES canbedivided into two phasesnamely
AS engineering and
OS engineering.
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SIMATICManager project creation, library creation, project management and diagnostics, etc.
PH Plant Hierarchy. Used for design of hierarchical levels of plants.
HW Config Hardware Configuration Environment. Used for configuration of CPUs, communication processors, peripherals, and
field buses, etc.
CFC Continuous Function Chart. Used for design of libraries, automation logic, interlocks, algorithms, and controls, etc.
SFC Sequential Function Chart. Used for design of sequential controls, logic, and interlocks, etc.
SCL Structured Control Language. Used for programming of algorithms and creation of function blocks, etc.
IEA Import ExportAssistant. Used forgeneration of control models, process tag types, and replicas.
WinCC Windows Control Centre. PCS 7 operator interfaces and visualization.
Graphics Designer editor Design of pictures, graphic objects, and animations.
Commissioning Wizard The Commissioning Wizard automatically detects newly installed SIMATIC modules when a PC is restarted (Plug &
Play) and guides the user step-by-step through the installation and configuration of the PC station.
Configuration Console With the Configuration Console, you can change the settings after the Commissioning Wizard has been run. The access
points are always configured using it.
Station Configurator It displays the actual PC configuration found and set up for PCS 7 systems.
Multiproject In the SIMATIC Manager, you can create projects (single projects) or multiprojects. A multiproject could contain
several projects and a master data library.
Master data library A master data library is associated with a multiproject. Different from other system or application specific libraries, a
master data library is within a multiproject and collects all function types used in the multiproject.
Process Object View During engineering, you create many objects. The Process object view contains all the engineering aspects of a project.
You display these objects and edit them in the view.
SIMATICNET The Commissioning wizard, Configuration Console, and Station Configurator are interfaces of the SIMATIC NET.
SIMATICNETis a platform to configure network and bus systems used in a SIMATICproject.
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AS-OS SystemThe systemarchitecture for the SIMATIC Process Control System 7 is as follows:
- HMI level
- Host computer
- Network
- Controller
- Engineering system
and all of this is based on SIMATIC.
Integrated Configuration
The PCS 7 projectis createdon the ES. The project contains the AS, OS and communicationdata.
The devicesarein theforeground(AS, OS, bus and field devices) in the ComponentView and canbeconfiguredthere.
The process is configured in the foregroundin the Plant View. The necessaryautomation objectsand operatingand monitoring objects are
entered implicitly in the assignedAS and OS. You canaccess thedata configuredin the AS duringOS configuration.
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Plant Hierarchy
This view is where you can structure the system into components, functions, and process control locations.
You can prepare the automation solution structure in advance, without first having to configure the actual
hardware equipment. If PCS 7 components are used, you can define and connect the I/O interfaces at a later
time.
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SIMATIC S7-PLCSIM simulates a controller for functional testing of user blocks and programs for S7-300 and S7-400 on the programming
device/PC. Online access and test functions of the programming tools can be carried out in exactly the same
manneras with a real controller.
This allows the entire program test to be carried out on-site in the development office. The faculty to simulate the communication via MPI,
PROFIBUS DP and TCP/IP is new and ensuresa high degreeof flexibility in the simulation.
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Automation station
An Automation station may comprise of a Power Supply (PS), Central Processing Unit (CPU), Communication Processor (CP), and input
and output modules.
PCS 7 CPUs
The CPU processesoperating systemand programs.PCS7 CPUs areselected from the SiemensSIMATIC S7 400 CPU series.
They communicate with ES and/or OS server via the System/Plant bus. The AS also have a Communication port to communicate with the
field devicesvia Profibus DP.
CPU OS
Every CPU has anoperating system, which is supported bythe System Functions (denotedas SFC or SFB).
Between the operating systemand the userprogramsthere arethe so-called Organization Blocks (OBs).
Note :
The abbreviation SFC is for the Sequential Function Chart (editor or charts). The System Function Call will not use the abbreviation.
However, you will see objects such as SFC4, SFC265, SFB35, etc. in the PCS 7 system and they mean the
system Functions.
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The SIMATIC Process Control System 7 is based on the SIMATIC - S7 400 CPUs.
The modular structure of the SIMATIC controller range allows you to develop a solution tailored to your needs and special applications as a
complementto SIMATIC PCS 7.
You canselect the appropriateperformanceclass: from the S7 200 to the S7 400. You can also choosethe correctfunctionality:
Processautomation (S7) or informationprocessing (M7).
For example, you could use SIMATIC C7, a compact combination of automation, operating and monitoring functions, if you need compact,
stations installed at the machinelocation.
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دراینپیکربندیسیستماتوماسیونASتنهاداراییکپردازندهS7400میباشد
درهایدکاربرمعمولیکهفاقدخطربودهویابهسناریوهایایمنیسازیوهمچنینبهقابلیتافزونگینیازیوجودنداشته
باشد.ازایننوعASاستفادهشودیم.
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S7400HدرایننوعسیستمازایهپردازندنوعHاستفادهشودیم.
حرفHدرایننوعسیستمبهقابلیت«Hut Redundant»یا«High Availability»اشارهدارد.
دارایدوCPUازنوع400H(AS 414HوAS 417H)باشدیم.
سیستماتوماسیونAS 414HوAS 417HباداشتنقابلیتHازطریقیکپردازندهارتباطیCPبه
گذزگاهپلنتمتصلگرددیم.برایرسیدنبهسطوحباالتر،افزونگیتوانیمازدوعددCP
استفادهکرد.
کاربرداینسیستمدرهاییدفراینکاربردداردکهدرآنهاتوقفعملیاتفرآیندغیرمجازباشیمد.
System availibility is also aspecial requirementin the processengineeringindustry.
Siemensmeets this requirementbymeansof the high quality of the componentsused, a short MTTR (mean time to repair), and redundant
design.
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سطوحایمنی
سیستمهایFوFHزیمنسدارایاستانداردهایایمنیزیرهستند:
سطوحAK1تاAK6ازاستانداردDIN V 19250/ DIN V VDE 0801
سطوحSIL1تاSIL1ازاستانداردIEC 61508
سطوح1تا4استانداردEN 954-1
There is a big difference between the safety modules and standard modules. Data in safety modules are sent over PROFISAFE bus profile.To
access that data, please use module drivers in CFC.In this way , you can read the current values in DI plus
you can simulateDO modules.Please read moreaboutthose modulesin onlinemanualof S7-F/FH Systems.
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سیستماتوماسیونAS400FH
هایهپردازندبهکاررفتهدراینسیستمنیزعالوهبرقابلیت،افزونگیمشخصه«ایمندربرابرخطا»یاFail Safeرانیزدارند.
اینسیستمدرهایطمحیپرخطرکهنیازبهایمنیباالوافزونگی،داردبهکارگرفتهشودیم.
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TUV certification involves rigorous testing of the applications for which the component is designed. It includes verification that the device
satisfies the strictest European regulations for the industry in which the component was designed for and
ensures the component specifications are stated correctly. Periodic retesting of the component is required to
maintain TUV approval and the certification is without question the most comprehensive testing any product
would undergo. In the case of a tuning module, TUV approval means the product complies with legal
exhaust-emissionsstandards.
TUV testing of a tuning moduleincludes:
Verifying the use of quality materials in the manufactureof anautomotive product.
Emissions standardsaresimilar to the original manufacturersstandards.
No dangerin the fit or use of the product.
Verifying that stated powerand economyfigures areaccurateand arenot misleading.
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کابینتیکیمسیستاتوماسیونAS(Automation station)شاملاجزاءافزاریتسخزیرباشدیم.
رکبرایقرارگیریهاتکاروپردازنده.
منبعتغذیهPower Supply (PS)
پردازندهCentral Processing Unit (CPU)
هایتکارشبکهCommunication Processor (CP),
اجزاءاختیاریدیگرمانند:
–کارتحافظه
–باتریپشتیبان
درهایمسیستنوعHوFHاجزاءفوقدوبرابرشدهوهاینالماواسطمانندفیبرنوریوماژولهایSyncکهرویCPU
نصبشوندیموعملسازینسنکروبینCPUهاراازطریقفیبرنوریانجامدهندیمنیزاضافه
میشوند.
درکناراجزایفوقبررویASکارتهایلماژوورودیوخروجینیزمیتواندقرارگیردکهدراینصورتبهآنها
Central IOگفتهشودیم.
کارتهایIOًالمعمودرهایتپلنبزرگازطریقهایلماژوRemote IoیعنیET200هاازطریقشبکهProfibusبهAsمتصل
هستندجمعآوریشوندیم
بهصورتOptionalتوانیمیککارتProfibusبهعنوانمثتالCP 443-5 ExtرانیزبررویASاضافهکرد.بااستفادهازاین
کارتمیتوانبهتجهیزاتفیلدبواسطهProfibus DPمتصلشدهودرمحیطبرنامهنویسیکنترل
ازطریقتوابعDP_sendوDP_Recvتبادلدیتاکرد.
Note
The CE marking symbolizes the conformity of a product to the Community requirements incumbent on the manufacturer of the product. It
indicates that the productconformswith all the Community provisionsproviding forits affixing.
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The broad spectrumof input and outputmodulessupplements the SIMATIC controllers.
All process controlrequirements arealso takeninto considerationhere.
Whether a standard module or one with diagnostics, whether intrinsically safe or with built-in functions - the appropriate module is available
for every application.
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A full configurationcan encompassup to 8 modulesper station.
CPUs manufacturedpriorto 1999 could address 122bytes via the DP master system,i.e.:
- Max. 61 (7 x 8 channels + 1 x 5 channels) analog inputs from class B or
- Max. 32 (8 x 4 channels) analog outputs from Class B or
- Max. 128 (8 x 16 channels) digital inputs from Class A and B or
- Max. 128 (8 x 16 channels) digital inputs from Class A or
- Max. 64 (8 x 8 channels) digital outputs from Class B
CPUs manufacturedsince then canaddress upto 244bytes. This doublesthe abovelisted maximumnumberof channels.
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According to their diagnostics capabilities, the standard signal modules for the ET 200 M distributed I/O system are divided into Class A
and Class B. The AS 414 to AS 417 automation systems and the OS operating and monitoring systems can
receive and evaluate the channel-specificdiagnosticsinformation fromthe Class B modules.
Class B moduleshave the following diagnostics properties:
Channel-specific error display
Parameterizable diagnostics and diagnostics alarm
Internal module monitoring
Immediate message at auxiliary supply error
Output module characteristics for a CPU failure: Stopping the last value or applying a substitute value
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RemoveandConnect
To make it possible to exchange modules during running operation, a special backplane bus is used in the ET
200M rack. Unlike a standard bus, this special backplane bus is not interrupted during module exchange.
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عنوانشبکهPCS7،SIMATIC NETنامدارد.کهبرایبرقراریارتباطدرسطوحمختلف،فرآیندازسهنوعشبکهبهنهایما
«گذرگاهپلنت»،«گذرگاهترمینال»و«گذرگاهفیلد»استفادهکندیم.
Terminal Bus or Client Bus
Plant bus or System bus or Controller Network orProcess Bus
Field bus
بهعبارتدیگرازدیدمعماریهرماتوماسیونساختارشبکهPCS7دارایسهیاچهارالیهباشدیم.مطابقبااینهاهشبک
پروتکلهایمتفاوتدراینالیههابکارگرفتهمیشود.
Field Level
Control Level
Process Level
Monitoring Level
شبکهSIMATICارتباطاتبدون،دردسریکسانوقطعیرابینتمامهایهمولفیمسیستمانندهایمسیستمهندس،ی
هایمسیست،اپراتوریهایمسیست،اتوماسیونهایهدستگافیلدوورودی/هایخروجتوسعه
دهدیم.
انواعهایلپروتکارتباطیبهکاررفتهدرساختارPCS7بهشرحزیرباشدیم.
Industrial Ethernet
Ethernet
AS-Interface
PROFIBUS-DP/PA
HART
MODBUS
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In PCS7 systems, Industrial Ethernet is used as Plant Bus.
SIMATIC PC Serer Stations and AS’s Connectedto This Bus
A SIMATIC PC supplied is equipped with an onboard Ethernet card for the Terminal Bus connection and/or network card (either a CP1613
card or anothernetwork card,e.g. 3ComEther link card)for the Plant Bus connection.
An AS uses CP443-1card to communicatewith ES/OS.
The use of other network cards (e.g. 3Com cards) rather than CP1613 cards is an entry level for the Plant Bus communication. The CP1613
cardsare used in any substantial projects.
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PCS7 Main Component
ES :stands for Engineering Station
OS : OperatorStation, and
AS :Automation Station.
ES: Engineering Station
PCS7 projects are designed at the engineering workstations that are installed with PCS 7 engineering tools and have communication access
to automation and operatorstations.
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The System bus
The PCS 7 System bus is of the Industrial Ethernet,which is based on IEEE Standard 802.3 with a data transmission rate of 10 or 100 Mbps.
Up to 1024stations canbe connectedto the IndustrialEthernet.
Transmission media could be:
Triaxial cable (shielded coaxial cable)
ITP (Industrial Twisted Pair)
Fiber-optic cable (FOC)
Picture above shows that an ES/OS and AS is connected to an OLM port via a TP (Twisted Pair) cord. The bus backbone is a fiber optic
cablering.
For medium-sized to very large systems with the highest performance requirements, Fast Industrial Ethernet (referred to only as Fast
Ethernet hereafter) is used as the system bus. Fast Ethernet is a further development of the Standard Ethernet
and its essential features are similar to the familiar Ethernet Standard. The data format, the CSMA/CD
(Carrier Sense Multiple Access/Collision Detection) access procedure, and the glass fiber-optic cable and
twisted pair cables(notriaxial cable)used are identical.
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For medium-sized to very large systems with the highest performance requirements, Fast Industrial Ethernet (referred to only as Fast
Ethernet hereafter)is used as the system bus.
Fast Ethernetis a furtherdevelopmentof the Standard Ethernet and its essential featuresaresimilar to the familiar Ethernet Standard.
The data format, the CSMA/CD (Carrier Sense Multiple Access/Collision Detection) access procedure, and the glass fiber-optic cable and
twisted pair cables(no triaxial cable)used are identical.
The configurationof Fast Ethernet-network structuresis based mainly on optical data
transmission. The Industrial Ethernet OSMs (Optical Switch Modules) enable you to configure Industrial Ethernet networks in switching
technology with industrial twisted pair (transmission speed of 10/100 Mbps) and a Fast Ethernet backbone
with glass fiber-opticcables(transmission speed of 100Mbps).
An example of the Industrial Ethernet OSM has six industrial twisted pair interfaces (ITP ports) and two optical interfaces. Because of this,
youcan connectup to six ITP terminals or additional ITP networks to the ITP ports.
برایرفعنقایصشبکهپایهاترنتازشبکهاترنتسریعاستفادهمیشود.
اینشبکهازسویچهایخاصReal-timeاستفادهمیکند.
امروزهباپیشرفتفنیآوریگذرگاههای،ارتباطیراهحلGigabit Ethernetباپهنایباند1000Mbpsیا1Gbpsنیزارائهمیشود
کهاستفادهازآنًاتقریبمرسومشدهاست.
گذرگاههایاترنتسریعوگیگابیتاترنترامیتوانبارسانههایفیزیکیازنوعکابلمسییافیبرنوریویاحتیبه
صورتبیسیمwirelessپیادهسازیکرد.
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In Picture , an OS server, SV1.1 has two connection cables each plugging into a port of an OSM. The two cables do not connect to the same
OSM increasingthe system availability.
The redundancyis achievedvia the distribution of communicationmedia,i.e. switches and CPs.
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Industrial Ethernet OSM TP22 and ESM TP40 TheOSM TP22 optical switch modules
and the ESM TP40 electrical switch modules permit cost-effective design of switched networks with 100 Mbit/s and a low connection
density.
The OSM TP22 (optical switch module) and ESM TP40 (electrical switch module) are expand the OSM/ESM range and permit connection
of 1 or 2 stations at 10/100Mbit/s to Industrial Ethernet networkswith a linear or ring structure.
Note
For moreInformation pleasereferto Siemensmanual: “SIMATIC NET Industrial EthernetOSM/ESM”
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Field LevelPROFIBUS DP, PA, or the AS-interface is used to connect the distributed peripherals or I/Os (field devices
and the ET200M).
System BusDepending on the performance you need, you can use one of the MPI, PROFIBUS or ETHERNET versions
as a systembus. They handle AS, OS and ES communication.
Caution!With PCS 7 Version 5 and higher, we recommend using only Ethernet as the system bus for new
installations. You canstill use PROFIBUS as the systembus for expandinglegacy networks.
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Field level
A big advantage of PCS 7 systems is the seamless integration of various fielddevices and instruments into
their central control systems using field bustechnology.
Field Devices
Siemens itself and various device-vendors provide ranges of drives, transmitters, sensors, and instruments,
which are compliant to the Profibusprotocols.
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A big advantage of PCS 7 systems is the seamless integration of various fielddevices and instruments into their central control systems
using field bus technology.
Siemens itself and various device-vendors provide ranges of drives, transmitters,sensors, and instruments, which are compliant to the
Profibus protocols.
ProfibussupportsIntrinsically safeinstrumentation and hasinterfacesto the HART and ASmodules.
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Profibus DP is designed to replace the traditional parallel signal transmission with 24 volts in manufacturing automation and also for analog
signal transmission with 4 – 20mAor Hart in processingautomation.
Profibus PA profile definesthe parametersand behaviourof typical field devicessuch as measuringtransducersor positioners.
The PA profile is suitable for analog transmission with 4 – 20 mA and Hart.
Benefits are obvious when comparing the Profibus technology to conventional cabling technology. Separation, terminal, and distribution
devicesarereplaced byoneProfibus system.
It is efficient to install the bus systems because of availability of the graphic interfaces and comprehensive
diagnostic tools.
With fibre optic wiring,long distance communication, e.g. between buildings, becomes feasible.
The simplicity of Profibus significantly reduces commissioning and servicing efforts.
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PROFIBUS PAThis is an extension of the PROFIBUS DP. The DP/PA coupler supplies the PA devices with power. The
supplied current is limited (depending on the coupler version), so that you can also install the PA devices in
hazardous(Ex) areas.
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Profibus DP is designed to replace the traditional parallel signal transmission with 24 volts in manufacturing automation and also for analog
signal transmission with 4 – 20mAor Hart in processingautomation.
Profibus PA profile definesthe parametersand behaviourof typical field devicessuch as measuringtransducersor positioners.
The PA profile is suitable for analog transmission with 4 – 20 mA and Hart.
Benefits are obvious when comparing the Profibus technology to conventional cabling technology. Separation, terminal, and distribution
devicesarereplaced byoneProfibus system.
It is efficient to install the bus systems because of availability of the graphic interfaces and comprehensive
diagnostic tools.
With fibre optic wiring,long distance communication, e.g. between buildings, becomes feasible.
The simplicity of Profibus significantly reduces commissioning and servicing efforts.
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OS
OS server
Standalone Server
Redundant server
OS client
OS project.
Single-user project
Multi-user project
Client Projects
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OS
OS server
Standalone Server
Redundant server
OS client
OS project.
Single-user project :A single-user project is for a stand-alone operating station. It is for small systems where
server and client functions are carried out on one PC.
Multi-user project :A multi-user project is used in the Server/Client environment where project database is
located on the servers and clients can access the database.
Client Projects
OS serverscommunicatewith ASs and OS clients.
One sever can be accessed byup to 32 clients. One server can access approximately 256K variables (≈ 85,000process objects), which are
supplied and generatedbyASs.
Operatorson OS clientscanalso generatecommandsand input them to ASs.
Project data such as picturesand dataarchivesare stored on the serverand aremadeavailableto clients.
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Here, the redundancy is at the OS level. PCS 7 provides redundancy at other levels, for example, at the AS level, system bus level, and
peripherallevel, etc.
A redundant server is functionally identical to the server and is running in parallel to the server. During normal operation, the process data
serversare running completelyin parallel.
Each server has its own process connections and data archives. The Ass send the process data and messages to both redundant servers. If one
serverfails, the clients will automatically switch fromthe failed serverto the activeserver.
After the failed servercomesback online,the Redundancywill performarchive synchronizationfor the downtime.
The archive gap caused by the failure will be filled by transferring the missing data to the server which was failed. This action equalizes the
servers.
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HMI (Human Machine Interface)
A universal, scalable system is required to operate and monitor processes.
This is why we areproviding modularly graduatedsystems with variousperformance ranges.
- One of oursystems has UNIX-basedsolutions, derivedfrom ourexperiences with existing systems.
- Anothersystem solution offers the WINDOWS-based WinCC.
These systemsformthe basis for the OS (OperatorStation), integrated fromthe low-performanceend to the high-performanceend.
The specialfeaturesare that the systems have the sameoperatingbasis and a commonengineeringsystem.
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Basic data
PCS 7 system Capability is related to handling of process objects, variables, and data archives. One process object (PO) means one
function block (FB) /CFC Chart and its faceplate. The following formulas are assumed in the PCS 7
system providing anapproximationof project datavolume.
1 Process Object (e.g. motor, valve, and control loop)
≈ 1 function blocks + faceplate
≈ 50 OS variables
licensing Engineering(AS + OS) systems and Runtime licensing
Engineering systems is scaled according to the number of process objects .
OS runtime is based on the number of variables.
The tier of the software packages is listed in Table 1.3 where each of the licenses includes an archiving license
for 512 variables.
archiving
The basic archiving license of 512 variables can be expanded. See Table
From engineeringto runtime
After the engineering phase of a project, the program (AS-specific data: DBs, FCs, FBs, and OBs etc.) is downloaded from an ES to ASs to
be executed.
The OS part of the project (OS-specific data: pictures, messages,and archives)is loaded to OS serversandclients.
The OS project is then activated on the serversand clients. The projectis now underthe controlof the PCS 7 Runtime system.
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Engineering (AS + OS) systems is scaled according to the number of process objectswhile OS runtime is based on the number of
variables.
The tier ofthe softwarepackagesis listed in Table below whereeachof the licenses includesanarchiving license for 512 variables.
The basicarchiving license of 512 variablescanbe expanded
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The development strategy for enhancing the functionality was step-by-step combination of existing systems until a new generation system
was achieved.
Tried and tested technology,as well ascustomerand staff experienceswere also includedin this approach.
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Step-by-step changeoverfrominstalled basis to SIMATIC PCS 7
Protection of investments (conversionof provenapplication SW; continued use of I/O)
Homogeneousprocesscontrolbased on a commonmonitoring and operating
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The development strategy for enhancing the functionality was step-by-step combination of existing systems until a new generation system
was achieved.
ترکیبسیستمTELEPERM MباسیستمPCS7