Industrial Communication for Automation and Drives - Induteq

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Industrial Communication for Automation and Drives - Induteq

Industrial Communication

for Automation and Drives

Overview

automation

s


Open communication at a glance

Data communication

Data communication is used for data

interchange between programmable

controllers or between programmable

controller and intelligent peers (such as

PCs, computers, etc.).

Network communication

The communication link can be established

using integrated interfaces in the

programmable controller (CPU) or by

using communications processors

(CPs/TIMs).

Data transmission is event-controlled,

and is initiated by calling a communication

block.

SIMATIC S7 and SIMOTION provide multipoint

interface (MPI), PROFIBUS and

Industrial Ethernet for data communication.

Industrial mobile communication

The basis for industrial mobile communication

are worldwide networks such as

WLAN, GSM or, in the near future, UMTS

which implement simple, secure solutions

for local or worldwide company

networks. The basis for secure global

data communication is TCP/IP.

Point-to-point

Multi-point Interface

PROFIBUS

Industrial Ethernet

Process or field communication

Process or field communication is used

to interface actuators/sensors to a

programmable controller by means of

distributed I/O.

The link can be established via integrated

interfaces on the CPU or by means of

interface modules (IMs, CPs).

The exchanging of process signals from

the actuators/sensors can take place

cyclically via the process image or

individually via control command.

SIMATIC provides PROFIBUS DP and

AS-Interface for process or field

communication. It also provides EIB,

which forms the link between production

automation and building services

automation.

AS-Interface

PROFIBUS

2


Pages

Data communication

is implemented

using MPI, PROFIBUS

and Industrial

Ethernet.

General

High-availability and fail-safe

communication

Network interfaces

Transmission media

Totally Integrated Automation

PROFInet

Manufacturing Execution Systems

Glossary

2

26

28

29

30

31

32

33

In point-to-point communication, two stations interchange data with

one another. The point-to-point structure represents the simplest form

of communication.

The multi-point interface (MPI) is an integrated interface on

programmable controllers such as SIMATIC® or SIMOTION as well as on

SIMATIC PCs, PGs and Panels.

PROFIBUS is for data communication between programmable controllers

made by different manufacturers.

Industrial Ethernet (IEEE 802.3 and 802.3u) is the international standard

for area networks, and is currently the number one network in the LAN

landscape worldwide.

Data communication systems

Point-to-point communication

Multi-point interface (MPI)

PROFIBUS

Industrial Ethernet

Worldwide communication

Network performance and power

Typical practice-related data (Table)

5

3

18

19

20

22

23

24

Process or field communication 5

PROFIBUS DP/PA

-PROFIBUS DP master

-PROFIBUS DP slaves

Typical practice-related data (Table)

10

10

12

14

As low-cost alternative to a wiring harness, AS-Interface connects

sensors and actuators using a two-wire cable.

PROFIBUS (IEC 61158/EN 50170) is the international field standard, and

is the world market leader among field buses.

AS-Interface

-AS-Interface master

8

8

-AS-Interface slaves

9

Process or field

communication is

supported by the

AS-Interface and

PROFIBUS DP

networks.

DP/AS-Interface link

Safety at work

Typical practice-related data (Table)

3

8

8

14


Industrial communication

This brochure provides an

overview of Siemens products

for industrial communication

in automation.

The following criteria are available

as selection assistance:

4

Types of communication:

process or field communication

and data communication

with typical applications.

Sample configurations

which demonstrate a wide

variety of possible solutions.

Comparisons between the

technical specifications for

the various bus systems.

Totally Integrated Automation

Totally Integrated Automation® (TIA)

stands for a complete line of automation

components providing the very highest

level of integration: three-fold integration.

• An integrated software toolset supports

all project phases, from hardware

selection over programming and

operation to diagnostics and

maintenance.

• All tools access a common database,

saving configuring overhead and

ensuring project-wide data consistency.

Communication within TIA is integrated

from the field level to the process

control level: Industrial Ethernet,

PROFIBUS with AS-Interface as

extended arm (for interfacing switching

and installation technology),

For information

on Component

based Automation

and

PROFInet,

see page

26 30

Protocol applications (e.g.

PROFIBUS DP).

Allocation of products (e.g.

CP) to automation systems

(e.g. controllers) in the

relevant bus system (e.g.

Industrial Ethernet).

Navigation assistance for

obtaining more detailed

information.

A glossary of the most

important abbreviated

terms.

The configurations shown in

the brochure must be regarded

as sample configurations

for informative purposes only.

EIB (for integrating building services

automation). Centralized and

distributed I/O are configured in the

exact same way.

SIMATIC IT

Siemens recently expanded the Totally

Integrated Automation solution platform

to include Manufacturing Execution

Systems (MES). SIMATIC IT forms the

bridge between automation level and

corporate management level.

Component based Automation

based on PROFInet

Component based Automation is the TIA

concept for modular plant and machine

construction. It utilizes the benefits of

component technology, which has

already successfully established itself in

the software world. PROFInet, the

communication standard developed by

PROFIBUS International, is used for

communication.

Integrated communication plays a

decisive role

As economically-priced alternative to the

cable harness, AS-Interface connects

sensors and actuators over a two-wire

cable.

The basis for building services automation

is the international EIB standard

(EN 50090, ANSI EIA 776).

The multi-point interface (MPI) is an

interface integrated in SIMATIC® S7®/C7®

programmable controllers, SIMOTION,

and SIMATIC PCs, PGs and OPs/PPs/TDs.

The MPI makes it possible to set up shortdistance

communication networks.

PROFIBUS (IEC 61158/EN 50170) is the

international standard for the field level,

is the world market leader among field

buses, and provides powerful process or

field communication.

Industrial Ethernet

(IEEE 802.3 and 802.3u) is the

international standard for area networks.

At present, Industrial Ethernet is the

number one network in the LAN

landscape, with a market share of over

80%. Industrial Ethernet is used to set up

powerful long-distance communication

networks.

Industrial Mobile Communication

Industrial Mobile Communication is the

term used for industrial mobile

communication products (such as MOBIC)

from SIMATIC NET which use wireless

communication. The basis for Industrial

Mobile Communication are worldwide

networks such as WLAN (to IEEE

802.11b), GSM, or the networks of the

future, UMTS. Thanks to the growing

versatility of information technology,

Industrial Mobile Communication is being

used with increasing frequency in the

world of automation.

Network interfaces are implemented

via programmable controllers or links.


The various bus systems are divided into

buses for:

Process or field communication

Process communication or field

communication is used to interface

sensors and actuators to a programmable

controller.

These devices can be linked via integrated

interfaces on the CPU or by means of

interface modules (IMs, CPs).

SIMATIC and SIMOTION provide PROFIBUS

DP and AS-Interface for process or field

communication, as well as EIB, which

serves as bridge between production

automation and building services

automation.

Integrated interface

For PROFIBUS DP and AS-Interface

(SIMATIC S7 only), integrated interfaces

are available on the CPUs for SIMATIC

S7/C7 programmable controllers,

SIMOTION, the SIMATIC PCS 7 process

control system, and SIMATIC PCs and PGs.

Integrated interfaces provide a costoptimized

DP interface for fieldbus

communication.

Using communication processors

In today's powerful programmable

controllers, it is often more practical to

interface multiple PROFIBUS DP lines to

programmable controllers by means of

communications processors.

This not only enables the connection of

a larger number of I/O devices, but also

the separate handling of individual

production areas.

Data communication

Management

Enterprise level

Process

or fieldcommunication

Control level

Field level

Automation level

Performance/

transmission

rate

Data communication

Data communication is used for data

interchange between programmable

controllers or between programmable

controllers and intelligent peers (PCs,

computers, etc.).

SIMATIC and SIMOTION are equipped

with multi-point interface (MPI),

PROFIBUS and Industrial Ethernet for use

in data communication.

Integrated interface

For Industrial Ethernet and MPI,

integrated interfaces are available on

SIMATIC S7 programmable controllers,

PCs, PGs, and SIMOTION systems.

Bus system allocation

and performance

range coverage

Using communications processors

High-performance CPs are available for

Industrial Ethernet which are already

equipped with communication software,

thus off-loading the stations by making

it unnecessary for them to perform

communication tasks (e.g. flow control,

blocking, etc.).

5


Industrial networks

The graphic shows connection of different

automation systems to the standardized

networks

Internet Pad

PC

Access Point

HMI systems

Notebook

PC

Controller

Converter

Field devices

Link

6

Sensors


Mobile telephone

Telecontrol and

substation control

and protection

Internet Pad

PC

Motion Control Systems

Teleservice

Controller

Controller

Controller

Link

Field device for

hazardous areas

Link

MOTION Control

Drives

MOTION Control System

Link

Actuator

Controller

Power

supply

Sensors

7


Process or field communication

AS-Interface

Valves, actuators, drives – many different

components are used at the field level.

All of these actuators/sensors must be

interfaced to an automation system.

Today, distributed I/O are being used at

the field level as intelligent on-site

outposts, so to speak.

Process or field communication is

supported by the AS-Interface and

PROFIBUS DP networks

AS-Interface

At the field level, one finds numerous

sensors and actuators. As price-efficient

alternative to the cable harness,

AS-Interface connects these components

using a two-wire cable.

AS-Interface is used where individual

actuators/sensors are spatially distributed

throughout the machine (e.g. in a

bottling plant).

AS-Interface is the open international

EN 50295 Standard. All over the world,

leading manufacturers of actuators and

sensors support AS-Interface. Interested

companies have full access to the

electrical and mechanical specifications

for this interface.

SIMATIC C7-621 ASi

SIMATIC ET 200X

SIMATIC S7-300

SIMATIC C7

SIMATIC S7-200

DP/AS-Interface Link 20E

Integrated interface

(Specification V2.0)

CP 142-2

CP 343-2

CP 343-2 P

CP 243-2

Safety at work

Standard PLC/standard master

Standard

slave

Power supply

Safety monitor

Signal evaluation

Fail safe slave/safety monitor

Fail safe slave

with Emergency

Stop

The 'safety at work' concept enables the

integration of fail-safe components such

as Emergency Stop switches, safety door

switches or fail-safe light grid in an

AS-Interface network. These components

are fully compatible with familiar AS-I

components (such as master, slaves,

power supply, repeaters, etc.), are based

on EN 50295 and are jointly operated on

the yellow AS-i cable.

Master information (through regular I/O transfer)

8


AS-interface is a single-master system.

Communications processors (CPs) are

available for SIMATIC families which serve

as master for controlling processor or

field communication.

Extended AS-Interface Specification V2.1

permits interfacing of up to 62 slaves.

Thanks to the integration of analog-value

processing in the masters, accessing

analog values is just as easy as accessing

digital values. A DP/AS-Interface Link is

used to interface the SIMATIC S7-400 ®

to the AS-i network. DP/AS-Interface Link

20E in IP20 is available for connecting

the AS-Interface network directly to

PROFIBUS DP, making it possible to use

AS-i as PROFIBUS DP subnetwork.

This is how you save costs

AS-Interface replaces high-overhead

cable harnesses and connects binary

actuators and sensors such as proximity

switches, valves and indicator lights to a

programmable controller, for example

SIMATIC. In practice, this means problemfree

installation, since data and power

are transported over a single cable.

Thanks to a specially developed cable

and cable-piercing technology, the

AS-Interface cable can be tapped at any

point. This concept gives you enormous

flexibility and is exceptionally cost-saving.

Special knowledge of installation and

commissioning are unnecessary. In

addition, easy cable installation, a clear

cable structure and the special design of

the AS-i cable not only greatly reduce the

risk of errors, but also the overhead for

service and maintenance.

Power supply

LOGO!

Standard sensor,

e.g. inductive

BERO

AS-i panelboard

(without AS-interface chip)

Signal column

Annunciator

K45

(with AS-interface

chip) for

connection of

standard

sensors

User submodule

K60

IP 65 motor starter

AS-i panelboard

Ultrasonic BERO

with integrated

AS-interface

Standard encoder,

e.g. position switch

You will find the

technical specifications

for

AS-Interface 14

9

on page


Process or field communication

PROFIBUS DP/PA

PROFIBUS links field devices such as

distributed I/O or drives with automation

systems such as SIMATIC S7

programmable controllers, SIMOTION or

PCs.

PROFIBUS, which is based on the

IEC 61158/EN 50170 Standard, is a

powerful, open, rugged fieldbus system

with short response times.

The following protocols are available for

process or field communication with

PROFIBUS:

PROFIBUS DP

(distributed peripherals)

PROFIBUS DP is used to connect

distributed field devices such as SIMATIC

ET 200 ® or drives with very fast response

times.

PROFIBUS PA

(Process Automation)

PROFIBUS PA is an expanded version of

PROFIBUS DP which offers intrinsically

safe data and power transmission (e.g.

measuring transducers in the food

industry) in conformance with

International Standard IEC 6158-2.

PROFIBUS DP/PA is used when

actuators/sensors in the machine or plant

(e.g. at the field level) are widely

distributed and can be spatially combined

in a single station (such as the ET 200).

In this case, the actuators/sensors are

connected to the field devices, which are

supplied with output data as per the

master/slave principle and provide the

controller or PC with input data.

At SIMOTION's drive interface, the

isochrone PROFIBUS is supported by

PROFIdrive's "drive engineering" profile.

S7-400

S7-300

SIMATIC C7

S7-400

S7-300

SIMATIC TDC

SIMATIC C7

CPU 41x -2/3

FM 458-1 DP

CPU 317T-2 DP

31xF-2 DP

31x-2 DP

31xC-2 DP

C7-633 DP

C7-634 DP

C7-635

C7-626

C7-636

CP 443-5 Extended

IM 467/467 FO

CP 342-5/CP 342-5 FO

CP 50M0

CP 342-5/CP 342-5 FO

SIMOTION C/P/D

Integrated interface

10


Powerful tools such as STEP 7 ® , COM

PROFIBUS and SIMATIC PDM are available

for configuring and assigning parameters

to the I/O devices. In STEP 7, centralized

I/O and distributed I/O are configured in

exactly the same way.

PDM (Process Device Manager) is the

parameter assignment tool for intelligent

field devices (parameter assignments,

diagnostics), and is called from STEP 7.

STEP 7 can be used to make changes in

user programs as well as to test and

commission SIMATIC programmable

controllers interfaced via PROFIBUS DP

from any point in the plant. Drive ES also

makes it possible to engineer the drives

from any point in the plant.

The S7-PDIAG/S7-GRAPH and ProAgent

diagnostic tools make it possible to carry

out process diagnostics without the need

for additional diagnostic instruments.

Power PG

Field PG

Rack

WinAC

Box

Panel

Device basis for WinAC

WinAC RTX

Box PC 620/840

Rack PC 840/IL40

Panel PC IL70/670/870

Field PG

Power PG

FI 45 V2

CP 5511/CP 5512

CP 5611

CP 5613/CP 5613 FO

CP 5614/CP 5614 FO

WinAC Slot 412/416

(with integrated interface)

WinAC MP

(with integrated interface)

CP 5613/CP 5613 FO

WinAC basis

WinAC PN

CP 5611

CP 5613/CP 5613 FO

integrated interface PC/PG

Device basis for WinAC

PC

For information

on Component

based Automation

and

PROFInet,

see page

26 30

CP 5511/CP 5512

CP 5611

CP 5613/CP 5613 FO

CP 5614/CP 5614 FO

S7-400

CP 443-5 Extended

IM 467/467 FO

S7-300

ProTool/Pro

CP 342-5/CP 342-5 FO

CP 5511/CP 5512/CP 5611

CP 5613/CP 5613 FO

CP 5614/CP 5614 FO

CPU 317-2 PN/DP (i.V.)

11


Process or field communication

PROFIBUS DP/PA

Lateral data communication on the

PROFIBUS DP

Lateral communication on the PROFIBUS

DP makes communication even faster and

easier. The master sends a message

containing setpoint values to the first

slave. The slave responds by sending its

actual values in a broadcast message,

which is heard by all the other nodes on

the bus. Recipients are mainly intelligent

devices with their own data preprocessing

capability (distributed intelligence), such

as drives or distributed PLCs. Lateral

communication requires no additional

message.

Master/slave and lateral communication

relationships can be combined as needed.

Isochrone mode (equidistance) can

be set to a µs! Ideal for closed-loop

control!

A precisely reproducible bus cycle time

is a requirement for sophisticated closedloop

control, positioning and motion

control applications. Every deviation can

result in instable processes. Reproducibility

with jitter of < 1 µs satisfies the

very strictest requirements, e.g. for

applications involving synchronism.

Drives, CPUs and modular slaves are

synchronized to a common clock pulse,

not only making it possible to perform

motion control tasks, but also enabling

precise execution of distributed generalpurpose

closed-loop control and

measuring tasks.

Acyclic data interchange

In addition to the cyclic exchange of user

data, PROFIBUS DP also enables acyclic

messages. This makes it possible to send

event-controlled data to the slave, e.g.

drives can be easily assigned new

parameters dynamically while the plant

or machine is in operation.

SIMATIC S7

Power PG

Notebook

ET 200X

SIMATIC C7

ET 200M

Field PG

ET 200S

ET 200L

SINAMICS

SIMOVERT

MASTER-

DRIVES

MOBY ASM

MICROMASTER

SINUMERIK

840 Di

SIMOTION C/P/D

SIMOREG

12


For PROFIBUS

DP/PA technical

specifications,

26 14

see page

Openness all along the line

Thanks to PROFIBUS DP's openness, it

goes without saying that it is possible to

interface standardized components from

different manufacturers.

The IEC 61158/EN 50170 ensures

investment security for the future.

More than 2,000 products and services

from around 300 member companies all

over the world offer a wide range of fieldlevel

products with PROFIBUS DP

interface.

Siemens itself offers a complete palette

of programmable controllers, network

components, communication software

and field devices.

And if you are a manufacturer of field

devices, we can supply you with virtually

everything related in any way to the

PROFIBUS interface, such as ASICs,

training, certification, and much more.

SIMATIC HMI

VS 710

Vision Sensor

ET 200iS

DP/PA

coupler/link

Customer-specific

solutions

with ASICs

Customer-specific

solutions

with ASICs

Mobile Panel

SITRANS F US

SITRANS P

SIMATIC PC

DP/EIB Link

EIB

(EN 50090, ANSI EIA 776) is the internationally

standardized building installation system and

the basis for building services automation.

13


Process or field communication

Typical practice-related data

The table below contains empirical

values which are intended to

serve as recommendation for the

selection of the optimum

network.

AS-Interface PROFIBUS DP PROFIBUS PA

1

2

Connectable • Binary inputs/outputs •Binary inputs/outputs •Field devices in Zone 1

field devices • Analog inputs/outputs •Analog inputs/outputs hazardous area

•Intelligent field devices, (type of protection: [EEx ia],

e.g. drives, measuring explosive group: IIC)

sensors, slaves with data •Non hazardous area

preprocessing (such as (measuring transducer,

ET 200X® or S7-300®, actuators or valves)

SIMOTION®)

Programming/ -Via PROFIBUS DP Via PROFIBUS DP

commissioning with STEP 7 and PDM and PROFIBUS PA with the

SIMATIC PDM (Process

Device Manager) tool

3

Number of slaves

• Max. 62 • Max. 125 • 125 DP/PA links

• 15 typ. • 20 to 30 typ • 31 field devices per DP/PA link

4

5

6

7

AS-i cycle time Max. 5 ms for 31 slaves --

Max. 10 ms for 62 slaves

Bus cycle time -2 ms at 12 Mbit/s typ. 200 ms at 31.25 kbit/s typ.

10 ms at 1.5 Mbit/s typ.

Network capacity Electrical: Electrical: up to 9.6 km Hazardous area: max. 1.0 km

With/without repeater 100 m Optical: up to 90 km Non-haz. area: 1.9 km

Topology Line, tree, star Line, tree, ring, star Line, tree, star

8

9

10

11

12

Transmission media Unshielded two-wire cable Shielded two-wire cable Shielded two-wire cable

Available degrees IP 20 IP 20 IP 20

of protection IP 65 to IP 67 IP 65 to IP 67 IP 65 to IP 67

[EEx ia]

Standard EN 50295 IEC 61158/EN 50170 IEC 61158-2

Power supply via bus Yes No Yes

Bus interface CP, integrated interface CP/IM, integrated inter-Link or segment coupler

or link

face or link

14


Process or field communication

Typical practice-related data

1

A list of the field devices which can be interfaced to

the relevant networks for the purpose of process or

field communication.

2

Configuring and commissioning can be done anywhere

on the network.

The freely selectable communication relationships are

thus extremely flexible, easy to convert, and easy to

change.

3

Slaves are network nodes on the PROFIBUS which

send data back to the master at the master's request.

4

5

6

7

AS-i is a single-master system with cyclic polling.

The AS-i cycle time is the time it takes for the master

The bus cycle time is understood to mean the time it

takes for each master (active bus nodes) to receive

When using electrical components, local networks

can extend over the distance defined in the standards.

The method of cabling used between the stations is

referred to as the network topology.

to poll the slaves, which is done at precisely

predetermined intervals.

the token (the right to send) precisely once.

Greater distances can be bridged using optical

components.

8

9

10

11

12

Transmission media are either two-wire cables or fiber-

The degree of protection is shown as IPxy, whereby

the first digit (x) refers to shock-hazard protection as

well as protection against solid bodies.

Standards are international norms or guidelines

In some networks, the power supply for the bus nodes

The term 'interface' or 'interfacing' is understood to

mean the physical method of connecting bus nodes

to the bus cable.

optic cables.

The second digit (y) indicates protection against water.

The higher the digit, the greater the protection.

stipulating product properties and characteristics.

is also supplied by means of the bus.

15


Data communication

Industrial Ethernet, PROFIBUS

The decision as to whether multi-point

interface (MPI), PROFIBUS or Industrial

Ethernet should be used for data

communication depends mainly on the

size of the area that must be covered by

the network, the amount of data

involved, the number of nodes involved

and the network's expandability.

A basic contingent of communication

functions on the networks ensures

consistency, that is to say, the functions

show virtually the same performance

capability over all of these networks.

The following communication

functions/services are available for data

communication:

PG/OP communication

These are integrated communication

functions which allow SIMATIC and

SIMOTION systems to communicate with

every HMI device (TD/OP) and SIMATIC

PG (STEP 7). PG/OP communication is

supported by all networks (with the

exception of MPI), e.g. commissioning

(coexistent interface).

S7 communication

For S7-400, S7 communication is the

integrated communication function SFB

(System Function Block), and for S7-300

it is loadable FBs optimized in the

SIMOTION and SIMATIC S7/C7 systems.

It also makes it possible to interface PCs

and workstations.

The amount of useful data per request

may not exceed 64 kbytes.

S7 communication provides simple,

powerful communication services as well

as a network-independent software

interface.

Data communication

is implemented

by way of MPI,

PROFIBUS and

Industrial Ethernet

MOBIC

Access Point,

e.g. RLM

S7-300

S5-compatible communication

(SEND/RECEIVE)

S5-compatible communication

(SEND/RECEIVE) enables SIMATIC S7/C7

to communicate with existing systems,

above all with SIMATIC S5®, as well as

with PCs via PROFIBUS and Industrial

Ethernet.

SIMATIC TDC

For information

on the functionality

of the communication

functions,

see page

26 18

SIMATIC C7

Third-party device

16


MOBIC

SINAUT

Fetch and Write are also made available

via Industrial Ethernet, ensuring that

software created for SIMATIC S5 can

continue to be used without any

modification.

Standard communication

Mobile

telephone

PC

Standard communication actually

consists of standardized protocols for

data communication, such as FTP.

PROFInet

S7-300

S7-400

SIMOTION C/P/D

PROFInet communication services are

used for data interchange between

PROFInet components via Ethernet, and

are configured graphically using a

vendor-independent engineering tool

called SIMATIC iMap.

OPC

SIMATIC

WinAC PN

S7-200

Power PG

(OLE for Process Control)

OPC is a standardized, open, vendorindependent

interface, and is used to

interface OPC-capable Windows applications

to S7 communication and S5-compatible

communication (SEND/RECEIVE).

Vision Sensor

VS 72x

Information Technology (IT) with

e-mail and Web technology

S7-400

PC

S7-300

S7-400

Field PG

SIMATIC

WinAC

This form of standard communication

links SIMATIC to IT via Industrial Ethernet.

In office environments, e-mail and Web

browsers have become widely-used

communications resources.The most

widely accepted communication path is

Ethernet, although telephone lines and

the Internet are also popular.

Socket interface for Industrial

Ethernet

SIMATIC C7

Field

PG

Power

PG

This interface enables data communication

with computers via TCP/IP. Users can

program their own protocols for this

interface, which is widely used in the PC

world as well as in the UNIX world. In

the SIMATIC S7, the SEND/RECEIVE (S/R)

blocks are used as portal to TCP/IP.

PROFIBUS FMS

PROFIBUS FMS is used for data communication

between non-identical automation

systems from different manufacturers.

17


Data communication

MPI (multi-point-interface)

Supported communication functions

Controllers can be connected to the MPI

by way of interfaces integrated in the

CPUs of various automation systems

(e.g. SIMATIC, SIMOTION); PCs/PGs can

be connected to the MPI via integrated

interface/communications processor.

• Basic S7 communication

Data are transmitted on an eventcontrolled

basis by calling a

communication block (SFC) in the CPU

(basic S7 communication for S7-300,

S7-400, C7).

The advantage is that no space in user

memory is required.

The amount of user data per request

may be up to 76 bytes (small amounts

of data).

S7-300

SIMOTION C/P/D

S7-400

SIMATIC TDC

SIMATIC C7

S7-200

OP/TD/PP

• S7 communication

• PG/OP communication

SIMATIC PC

Field PG

SIMATIC WinAC

SIMATIC TDC

SIMATIC C7

S7-400

Integrated interface on all

SIMATIC S7/C7/TDC CPUs or

SIMATIC PCs

S7-200

S7-300

WinAC Basis/RTX/PN

WinAC Slot 412/416

WinAC via integrated interface

or CP 5611/CP 5613

SIMATIC WinAC

Integrated interface

SIMOTION C/P/D

18


Data communication

PROFIBUS

TD/OP

The table contains the

functions supported

by the integrated

interfaces, communications

processors

(CPs) and relevant

communications

software.

Integrated interface

PG/OP

Communication

functions

S7 S5-

comm. comp.

Comm.

FMS

OPC

The objective of OPC is to

standardize the interface between

programmable controllers and

applications. OPC is being used

more and more frequently for

data interchange between

automation applications.

PROFIBUS is a powerful, open, rugged

bus system.

PROFIBUS is fully standardized in

accordance with the IEC 61158/EN 50170

Standard, providing excellent investment

security now and for the future.

Siemens itself has a complete product

line of associated network components!

S7-400

S7-300

C7

HMI

CP 342-5

CP 342-5 FO

CP 343-5

Integrated interface

CP 443-5 Basic

CP 443-5 Extended

ProTool Pro

WinCC

Thanks to the openness of PROFIBUS, it

can, of course, accommodate

standardized components from different

manufacturers.

You can do your configuring,

commissioning and troubleshooting

anywhere on the bus. The freely

selectable communication relationships

are exceptionally flexible, easy to convert,

and easy to modify.

Supported communication functions

The following communication functions

are available for data communication via

PROFIBUS:

SIMATIC WinAC

WinAC PN

WinAC Basis

WinAC RTX

WinAC Slot 412/416

WinAC MP 1)

1)

Without PC

• PG/OP communication

• S7 communication

• S5-compatible communication

(SEND/RECEIVE)

• Standard communication (FMS).

Box

Panel

Integrated interface

1)

Rack

PG/PC

CP 5511

CP 5611

CP 5613/ CP 5613 FO

CP 5614/ CP 5614 FO

1)

1)

1)

1)

Technical

specifications

for data communications,

26 24

see page

1) Contained in STEP 7

19


Data communication

Industrial Ethernet

For information

on Component

based Automation

and

PROFInet,

see page

26 30

Industrial Ethernet is a powerful area and

cell network based on the IEEE 802.3

(ETHERNET) Standard.

Ethernet is also the technology on which

the Internet is based, and offers many

possibilities for worldwide networking.

The many possibilities provided by

intranet, extranet and Internet already

available in today's office environments

can also be utilized in production and

process automation.

Ethernet technology, which has been

successful over many years, in combination

with switching, full-duplex mode

and autosensing allows you to match your

network's performance to your

requirements.

You can choose your data throughput

rate to suit your particular needs, since

integrated compatibility makes it possible

to introduce the new technology in

stages.

With a market share of over 80%, Ethernet

is number one in today's LAN landscape

worldwide. Ethernet provides important

properties and performance characteristics

which can mean many important

benefits for your application:

• Fast commissioning thanks to simple

yet sophisticated connection systems.

• High availability, since existing plants

can be expanded without perturbation.

• Virtually unlimited communication

capabilities due to scalable performance

through switching technology.

• Networking of widely varied types of

applications, such as office and

production applications.

• Company-wide communication thanks

to WAN (Wide Area Network) link-ups

such as ISDN or Internet.

• Investment security thanks to retention

of compatibility in future development.

SIMATIC NET depends on this timetested,

reliable technology. Siemens has

already supplied hundreds of thousands

of components and connections for

rugged and EMC-stressed industrial sites.

SIMATIC NET provides important additions

to traditional Ethernet technology for

rugged industrial environments:

• Network components for use in rugged

industrial environments.

• Fast on-site cable preparation thanks

to the FastConnect cabling system with

RJ45 technology.

• Fail-safe networks thanks to highspeed

redundancy.

• Constant monitoring of network

components thanks to a simple but

effective signalling concept.

PROFInet-capable products on the

Ethernet

• SIMATIC iMap engineering tool, the

configuration editor based on the

PROFInet Standard, for the graphical

configuration of communication links.

• SIMATIC WinAC PN PC-based control

as software PLC.

• SIMATIC NET IE/PB Link, compact

network interface between Industrial

Ethernet and PROFIBUS.

• PROFInet-capable CP 343-1 PN for

interfacing the S7-300 to the Ethernet.

• PROFInet OPC server for accessing data

in PROFInet devices from PC

applications.

• Visualization via OPC

All visualization products which

represent OPC clients can be used,

such as SIMATIC ProTool/Pro, SIMATIC

WinCC, third-party HMI systems.

• CPU 317-2 PN/DP with integrated

Ethernet interface (available soon).

SIMATIC

S7-200

SIMATIC S7-300

SIMATIC

S7-400

SIMATIC

TDC

SIMOTION C/P/D

SIMATIC PC

Field PG

Power PG

PC-based

Automation

MOBIC

SIMATIC

PCS 7

SIMATIC C7

PC

Notebook

WinAC PN

WinAC Basis, WinAC RTX

WinAC Slot 412/416

WinAC MP

PC

20

Vision Sensor

VS 72x


1) Integrated interface available soon

2) SIMOTION P

3) With Industrial Databridge

4) PG communication only

Product

PG/OPcommunication

S7-

communication

S5-compatible

communication

PROFInet

Standard Protocol OPC

CP 243-1

CP 243-1 IT

CP 343-1

CP 343-1 PN

CP 343-1 IT

CPU 317-2 PN/DP 1)

IT

S/R to socket

S/R to socket

IT+S/R to socket

TCP/IP

TCP/IP

TCP/IP

TCP/IP

TCP/IP

TCP/IP

CP 443-1

CP 443-1 IT

S/R to socket

IT+S/R to socket

ISO+TCP/IP

ISO+TCP/IP

CP 5100

TCP/IP

Integr. interface

TCP/IP

2)

Integr. interface

CP 1613

CP 1612/1512

CP 1515

DCOM IT+S/R to socket

DCOM IT+S/R to socket

DCOM IT+S/R to socket

DCOM IT+S/R to socket

TCP/IP

ISO+TCP/IP

ISO+TCP/IP

TCP/IP

CP 1512/1612

CP 1613/1512/1612

CP 1613/1612/1512

Integr. interface

3)

3)

DCOM IT+S/R to socket

DCOM IT+S/R to socket

DCOM IT+S/R to socket

ISO+TCP/IP

ISO+TCP/IP

ISO+TCP/IP

TCP/IP

ProTool Pro

WinCC

WinAC

TCP/IP

TCP/IP

TCP/IP

Integrated

interface

or

Wireless via

CP 1515

E-mail

Internet

Browser + JVM

Thin Client

TCP/IP

CP 1613

CP 443-1

4)

4)

S/R to socket

S/R to socket

ISO+TCP/IP

ISO+TCP/IP

Integr. interface

TCP/IP

21


Data communication

Worldwide communication

Today, cross-network communication and

worldwide communication are based on

TCP/IP. This Standard is used in both local

Ethernet network and on the Internet or

intranet, simplifying communication and

system interfacing.

Communication using information technology

(Web, e-mail) are becoming increasingly

important in the automation world.

Communications processors transmit

event-controlled messages over IT

communication pathways by e-mail to

both local and global recipients. They are

able to provide simple visualization using

Web technology and file processing (FTP):

• CP 243-1 IT for SIMATIC S7-200

• CP 343-1 IT for SIMATIC S7-300

• CP 443-1 IT for SIMATIC S7-400

Industrial Mobile Communication

This term is used for the industrial mobile

communication products for wireless

communication from SIMATIC NET.

Industrial Mobile Communication is based

on worldwide networks, such as WLAN

(to IEEE 802.11b), GSM or, in future,

UMTS. Thanks to enormous growth in

the diversity of information technology,

Industrial Mobile Communication is being

used with increasing frequency in the

automation world, making global

communication in automation

environments possible while at the same

time creating the possibility of problemfree

links to the planning and office

worlds through the following products:

• MOBIC ® Internet Pad for wireless access

to intranet and Internet as well as Thin

Client applications

• The CP 1515 ® communications

processor and RLM Radio Link Modules

for setting up a wireless IEEE 802.11b

network and for linking mobile nodes

to that network.

Teleservice

Progressive plant automation and

increasingly extensive globalization of

companies are requiring more and more

frequent access to teleservice systems

via stationary or radio networks.

SIMATIC teleservice

The MPI interface on SIMATIC S7/C7,

SIMOTION automation systems and OPs

is extended by means of the public

telephone network. This requires nothing

more than a TS adapter and a modem.

The Teleservice engineering tool

establishes a connection with the

machine or plant, and has at its disposal

the well-known functionality of STEP 7,

Drive ES, SIMOTION SCOUT and the

diagnostic tools. Teleservice functions

just as though you were actually at the

machine or in the plant. No additional

PC/PG is required.

TS 980 / TS-MOBIC teleservice

Is used for telecontrol of a PC or PG

integrated in the plant by way of Industrial

Ethernet.

In addition to the TS client, all software

tools that are to be used must be installed

on the PC or PG in question (e.g.

diagnostic software such as STEP 7 or

ProTool/Pro).

Only the TS 980 software executes on

the remote PC/PG.

Telecontrol

The SINAUT telecontrol system makes it

possible to set up complex, widely

distributed networks using narrow-band

transmission media. This makes it possible

to use not only private lines or wireless

connections in communication projects,

but also leased lines or public networks

such as ISDN, GSM or the analog telephone

network, and to combine them as needed.

22


Data communication

Network performance and capacity

Network performance

The differences in the performance

capabilities of multi-point interface,

PROFIBUS and Industrial Ethernet depend

on certain marginal conditions, such as

the number of nodes or the length of the

data frames.

One important marginal condition is the

required network access time, which is

the length of time a node must wait

before it can send a frame. The shorter

the network access time, the more the

networks differ in their performance.

At 100 Mbit/s, Industrial Ethernet can

send 150 times the number of frames that

MPI can send in a given amount of time.

New technologies, used in combination,

can enhance Industrial Ethernet's

performance by a factor of 50 or more.

These technologies are:

• Fast Ethernet with 100 Mbit/s:

Frames are transported much faster,

and therefore reserve the bus for a

much shorter period of time.

• Full Duplex excludes collisions; the

data throughput increases enormously,

since the usual retries are unnecessary.

Between two stations, data can be sent

and received at the same time. The

data throughput over a Full Duplex Fast

Ethernet connection thus increases to

200 Mbit/s.

• Switching enables parallel

communication. Dividing a network

into segments using a switch off-loads

that network. Local data traffic in each

segment is completely independent of

the traffic in other segments, making

it possible for several frames to be in

transport at the same time.

Frames

(200 byte/sec)

1,000,000

100,000

10,000

1,000

100

10

1

Network/value throughout

for 5 nodes

1 ms

10 ms

The performance enhancement

therefore stems from the fact that

multiple frames are underway at the

same time.

• Autosensing is the term used for

network nodes (data terminals and

network components) which can

automatically detect the transmission

rate of a signal (10 Mbit/s or 100

Mbit/s) and support autonegotiation

(the configuration protocol for Fast

Ethernet).

100 Mbit/s

10 Mbit/s

100 ms Max. network access time

Industrial Ethernet with switching and full duplex

Industrial Ethernet

PROFIBUS with 1.5 Mbit/s

MPI

23


Data communication

Typical practice-related data

The table contains empirical

values whose purpose is to

serve as recommendation for

selecting the optimal network.

MPI PROFIBUS Industrial Ethernet

1

Interfaceable

systemes

SIMATIC S7/C7

SIMATIC TDC

SIMATIC PG/PC

SIMATIC HMI

SIMATIC WinAC

SIMOTION

SIMATIC S7/C7

SIMATIC PG/PC

SIMATIC HMI

SIMATIC WinAC

SIMATIC TDC

SIMATIC S7/C7

SIMATIC PG/PC

SIMATIC HMI

Workstation, computer

SIMATIC WinAC

SIMATIC PCS 7

SIMATIC TDC

SIMOTION

2

Number of nodes

• Typical

• Maximum

2 to 10

32

2 to 16

126

2 to 100

Over 1000

3

Typical data length

per frame

64 bytes

120 bytes

250 bytes

4

Network capacity

• Local network

• WAN

Electrical: up to 100 m


Electrical: up to 9.6 km

Optical: up to 90 km


Electrical: up to 1.5 km

Optical: up to 200 km

Worldwide with TCP/IP

Wireless with Wireless LAN

5

Topology

Line

Line, tree, single-fiber ring,

redundant ring, star

Line, tree, redundant

ring, star

6

Engineering

• e.g. bus parameters

Default/settable

default/settable

No settings required

7

Available

communication functions

• PG/OP communication

• Basis S7 communication

• S7 communication

• S5-compatible communication

(SEND/RECEIVE)

• Standard communication

• PROFInet







• 5)


• 5)

• 5)



2), 3), 4), 5)


1), 5)


• 5)


4), 5)

• (IT, socket) 4)


2), 4), 5)

8

Use of communications

processors




24

1) SIMATIC PCS 7: PG communication only

2) SIMATIC S7-300, SIMATIC WinAC PN, IE/PB Link

3) Interface to PROFInet, Ethernet via PROFInet proxy device

4) Not SIMOTION

5) Not SIMATIC TDC


1

Here is a list of automation systems which can be

interfaced to the relevant networks and implement

data communication.

The decision as to whether

to use multi-point interface

(MPI), PROFIBUS or Industrial

Ethernet for data

communication depends

mainly on requirements

relating to network size,

amount of data, number of

nodes and network

expandability.

2

The typical number of nodes cites empirical values

from many applications.

3

A factor important to network performance is the

amount of data per frame. The worse the network

performance, the shorter the frames should be in

order to prevent a single node from usurping the

available performance capacity. If long frames, e.g.

program blocks or data blocks, have to be

transmitted, they are first segmented.

4

5

Electrically, local networks can be extended to the

limits defined in the Standards. The use of optical

components makes it possible to bridge longer

distances without violating the Standards, but the

The way the cables between the nodes are laid is

referred to as topology.

configuration rules regarding execution time must

be observed.

6

7

Network operation requires that certain

specifications (e.g. addresses) be made by the

stations in the network. In Industrial Ethernet

networks, all parameters except the station address

are preset, enabling easy expansion. No bus

parameters are required. Flexibility is attained

through the use of the appropriate network

components.

A number of basic communication functions are

available on all the networks for the purpose of

uniformity.

S5-compatible communication (SEND/RECEIVE)

enables communication between SIMATIC S5 and

SIMATIC S7 or a PC.

By making appropriate settings (e.g. network speed,

monitoring times), PROFIBUS can be adapted to the

required network size, number of nodes, and time

response.

The settings themselves can be easily made using

the available configuring tools.

MPI has default settings for all parameters, but some

of these can be changed.

The PROFInet communication services are used for

data interchange between PROFInet devices, and

are configured graphically using the vendorindependent

SIMATIC iMAP engineering tool.

8

In a system such as SIMATIC S7, for example,

additional performance capabilities can be implemented

through the use of auxiliary components.

This is the reason why e.g. SIMATIC S5s, S7s and

PCs can be interfaced to PROFIBUS and Industrial

Ethernet using communications processors (CPs).

25


High-availability communication and redundancy

Process or field communication

Production plants are designed and calculated

for around-the-clock shifts. When a

plant fails, the results are cost-intensive

downtimes, high re-start costs, and the loss

of valuable materials. Redundant control

systems such as the SIMATIC S7-H system

protect against such failures.

High-availability systems

The S7-400H is a high-availability

programmable controller. Handling,

programming, configuring and

communication are the same as for

standard systems.

Depending on the network topology,

redundant communication links are created

which become automatically available,

without loss of data, in the event of a

problem. The I/O are interfaced by means

of redundant PROFIBUS DP lines.

Redundant networks

S7-REDCONNECT ensures problem-free

communication between PC applications

(such as WinCC ® ) and the S7-400H over

redundant networks. PC applications which

already use S7 communication (e.g. over

the OPC interface) may continue to be used

without any modifications. Industrial

Ethernet networks and PROFIBUS networks

can be set up as redundant networks with

OSM ® , ESM ® and OLM ® . Thanks to ring

topology, the network continues to function

when one transmission path fails; failure

of a network component affects only the

nodes in that segment.

PC with 2 x CP 1613

and S7-REDCONNECT

S7-400H S7-400H H-CPU in

Single mode

S7-300

H system

PC

H system

PC

OSM

S7-400

S7-200

Host

system

26


Fail-safe communication

S7-300F with standard

I/O and F I/O

ET 200M with

standard I/O

Operator Panel

The "PROFIsafe" protocol profile, developed

for PROFIBUS DP, is used for communication

between a fail-safe S7 CPU and the failsafe

signal module.

PROFIsafe features

ET 200M with

F I/O

ET 200S with standard I/O, F I/O

and F motor starter

Laser scanner

Light curtain

PROFIsafe was the first communication

standard based on IEC 61508 to allow

standard communication and fail-safe

communication on the same bus. With SIL

3 (Safety Integrity Level 3), Category 4

(EN 954-1), it fulfills the highest demands

for the production and process industries,

and with the PA version (IEC 61158-2),

PROFIBUS DP expands the integrated

distributed automation into the process

world. PROFIsafe thus supports the different

communication requirements of both the

production and process industries.

PROFIsafe functionality

Fail-safe

data

Standard

data

Fail-safe

data

Standard

data

PROFIsafe counters the possibility of

transmission errors due to problems such

as address falsification, loss, delay, etc. with

four different measures:

PROFIsafelayer

• Sequential numbering of the PROFIsafe

data

• Time monitoring

Standard

PROFIBUS DP protocol

Standard

PROFIBUS DP protocol

Black channel=

standard PROFIBUS

• "Password"-based authenticity

monitoring and

• An optimized version of CRC.

Using slave nodes, fail-safe encoder signals

from a PROFIBUS station are transmitted

to the fail-safe CPU. When these encoder

signals have been logically gated, an

appropriate output signal is transmitted to

a fail-safe PROFIBUS slave. Single-channel

transmission is used, and there is no

redundant transmission path.

The fail-safe SIMATIC

components are part of Safety

Integrated, the Siemens

safety program based on

SIGUARD®, SIMATIC® and

SINUMERIK® / SIMODRIVE®

products. The PROFIsafe

protocol profile is used for failsafe

communication on the

PROFIBUS.

27


Network interfaces

Network interfaces between Industrial

Ethernet, PROFIBUS, AS-Interface and EIB

are implemented through links,

programmable controllers (PLCs) or PCs.

In the latter two cases, integrated

interfaces and communications

processors (CPs) can be used to interface

networks. When a link is used to

implement a network interface, the data

are forwarded without changes of any

kind from one network to the other. The

DP/EIB Link, the DP/AS-Interface Link or

the IE/PB Link can be used as network

interface between EIB, AS-i, PROFIBUS

and Industrial Ethernet networks.

When PLCs such as SIMATIC S7-200,

S7-300 or S7-400 are used, data are

exchanged between the networks via

communications processors or integrated

interfaces. The data are preprocessed

using a controller (PLC or PC-based)

before being forwarded to the other

network.

PROFInet network interface with

Proxy functionality

S7-200

IE/PB

Link

(Proxy)

PC with

PN OPC server

PC with

SIMATIC

WinAC

(Proxy)

SIMOTION P

S7-400

S7-300

SIMOTION C

S7-300

PROFIBUS segments can be interfaced to

Industrial Ethernet by means of devices

with a representative function, so-called

PROFInet proxies.

This can be done using a solution

involving SIMATIC WinAC PN or via a

SIMATIC NET IE/PB Link.

This allows all standard PROFIBUS slaves

to be used without any changes for

Component based Automation.

S7-300

SIMATIC C7

S7-200

PC

DP/AS-Interface

Link 20E

PG

Intelligent devices on the PROFIBUS

• SIMATIC ET 200X and ET 200S with

their own CPUs as intelligent slaves

• Compact S7-300 CPUs as intelligent

slaves

• Standard slaves

• Master interface modules for ET 200X

(integrated) and ET 200S (auxiliary

module).

S7-300

DP/EIB Link

28


Transmission media

AS-Interface

One feature of AS-Interface technology

is the use of a common two-wire cable

for data transmission and for the

distribution of auxiliary power to the

sensors/actuators. For this purpose, an

AS-Interface power supply unit is used

which fulfills the requirements of the

AS-Interface transmission method.

The mechanically coded and therefore

non-interchangeable AS-Interface profiled

cable is available for wiring purposes. The

repeater/extender is used to extend an

AS-Interface segment.

PROFIBUS

For PROFIBUS, different transmission

media are available for a wide variety of

applications.

Electrical data transmission

The standard solution for this form of

data transmission is a shielded, twisted

pair cable with circular cross section.

These cables are available with PE or PUR

sheath, in a halogen-free version,

designed for underground installation or

as dragline, or in a special version for use

in hazardous areas.

The PROFIBUS FastConnect ® system (FC)

allows the PROFIBUS copper cables to be

prepared quickly and easily on site.

Optical data transmission

This solution is based on fiber-optics.

The FO cables are available with glass or

plastic fibers for indoor or outdoor use,

in a dragline version, and in a halogenfree

version.

Wireless data transmission

This form of transmission is based on

ILMs (Infrared Link Modules) with a reach

of 15 meters.

Industrial Ethernet

Electrical data transmission

• FC twisted pair

The FC twisted pair cabling system is

ideal for structured cabling in the plant

itself. The FastConnect(FC) connection

system for Industrial Ethernet not only

"industrializes" the structured cabling

system from the office area for use in

the plant. FastConnect cables can also

be prepared extremely quickly right

on site, thus making standard RJ45

cabling technology available in an

industry-standard version suitable for

structured cabling (patch, patchfield,

interior, outlet, service cabling).

Thanks to integrated insulation

displacement contacts (such as ELS

TP40), a connection is possible between

two nodes up to 100 meters apart using

FC TP cables without additional patching.

If electrical isolation and EMC protection

are the primary concerns, however, then

optical data transmission would be the

right solution.

Optical data transmission

• Glass fibers

The optimum technology, even for

setting up redundant ring networks.

Futuristic fiber-optics cables, which are

completely impervious to electromagnetic

interference, are used as transmission

medium. These cables are

also completely free from potential

dependencies. The advantage:

absolutely no need to invest in

expensive equipotential bonding.

Wireless data transmission

To allow wireless data transmission, a

local radio network for wireless

communication can be set up with just

an Access Point, such as RLM, and a radio

card, e.g. the CP 1515.

These transmission media can also

be used in any combination.

29


Totally Integrated Automation

with Component based Automation

The savings add up

Everything needed to automate is part of

the modular TIA system. Every single

device or system is of the highest quality

and performance, and would be worth

the investment even without being a

member of the TIA club.

To top it off, there is only one sales

contact, one ordering address, and

support is first-hand and from a single

source.

The savings really add up when TIA

includes IT, and when you add training

and on-the-job training, configuring and

programming, commissioning, service,

maintenance, spare parts warehousing,

etc., etc., etc.

Open to the office world, fit for the

Internet.

The future is already a reality.

From the management level to the field

level, the combination of TIA and SIMATIC

IT means the communication is integrated

and the most suitable bus is available for

every application – Industrial Ethernet,

PROFIBUS with AS-Interface as its

extended arm (for interfacing switching

and installation technology), EIB (for

integrating building services automation).

All I/Os, whether central or distributed, is

configured the same way.

TIA utilizes open, internationally

recognized communication standards,

just like the office world does, making it

possible to use Internet technologies for

automation. Controller information can

be requested using popular browsers,

making it possible to operate and monitor

entire plants.

30

SIMATIC iMap

WinAC PN

ProTool/Pro

ProTool/Pro

OPC server

Intelligent

ET 200X

DP

slaves

OPC is the standard interface for

accessing process data, and makes the

configuration of simple links to all PCbased

automation systems, as well as to

office applications, extremely easy –

wherever they may be, Internet

technologies enable remote plant

operation and plant monitoring. Thanks

to PROFIBUS, TIA is open to an

exceptionally wide range of field devices.

The bus can even be used for fail-safe

applications and drive synchronization.

Even in the future.

Now and in future, TIA is open for new

technologies, new tools and partners,

not only in the world of automation but

in the IT communication network.

To make this possible, the strategy was

expanded to include an MES concept

and SIMATIC IT. The resulting strategy

enables improved coordination of

business and production processes.

Component based Automation with

PROFInet

Component based Automation is the TIA

concept for modular plant and machine

construction. Technological

modularization is a reliable concept for

shortening implementation and

commissioning times in the plant and

machine construction industry.

Intelligent

ET 200S

DP

slaves

OPC server

IE/PB

link

S7-300

If distributed intelligence is used, that is

to say, programmable field devices, drives

and I/Os, mechanical modularization can

be systematically extended to include the

automation solution.

Component based Automation utilizes

software component technology, which

makes the use of distributed intelligence

much simpler.

The new SIMATIC iMap engineering

software, which is designed for plantwide,

cross-vendor use, replaces the highoverhead

programming of communication

relationships between intelligent

devices with simple graphical configuring.

Component based Automation utilizes

the PROFInet standard from PROFIBUS

International.

PROFInet defines an engineering model

for distributed automation solutions and

a model for integrated communication

via PROFIBUS and Industrial Ethernet with

IT standards.


PROFInet

PROFInet takes the following aspects into

account, which are being worked on by

PROFIBUS International workgroups:

• Installation engineering with

industrial-standard connectors and

network components, including design

and installation guidelines

• Network administration (device

address assignment)

Communication between

programmable controllers in

distributed systems (distributed

intelligence)

Switch

IE/PB-Link

Switch

PLC

Engineering

ELS

ELS

Switch

PLC

IT

Switch

ELS

Switch

PG/HMI

Motion Control

Communication between distributed

field devices, such as I/O and drives

• Real-time communication for the highperformance

and deterministic

interchange of process data, even in

isochrone drive control systems in

motion control applications

• Remote diagnostics and network

diagnostics using reliable IT standards

such as WEB and SNMP

• Gradual integration of field-proven

PROFIBUS application profiles, such as

PROFIsafe

ELS

In contrast to the Office world, the use

of Ethernet in automation places higher

as well as special demands on the

components in industrial environments,

for example on

Industrial-standard installation

engineering (connectors, cables)

• Higher availability

• Fast response times

(real-time capability)

• Network administration and

diagnostics

• Interfacing of existing fieldbus

applications and fieldbus devices in

Ethernet-based plants

The answer to the demands on an

Ethernet-based automation network is

PROFInet, the open and innovative

communication standard from PROFIBUS

International.

PROFInet is the integrated solution for

all communication requirements in

industrial automation, and combines on

a graduated basis the knowledge gained

from PROFIBUS and Industrial Ethernet.

• Stage 1 of PROFInet enables

implementation of distributed

automation structures.

• Stage 2 of PROFInet is concerned with

the interfacing of distributed field

devices to Ethernet and improving realtime

functionality on the Ethernet.

• In stage 3, PROFInet will enable

isochrone interfacing of controllers

and drives to the Ethernet via

Isochrone Realtime (motion control).

31


Manufacturing Execution Systems (MES)

It is becoming increasingly important for

companies to coordinate business and

production processes and to optimize the

value-added chain of company and

individual plants alike. The challenges of

today are the optimization of global

operating costs and the improvement of

a concern's manufacturing flexibility.

In order for companies to be able to

improve their processes and remain

competitive, they have been

concentrating their investments for the

past several decades on local PLCs and,

on the next higher level, on Scada

systems for the visualization of plant

processes.

Based on today's and tomorrow's markets,

Siemens developed a new MES procedure

which permits companies to coordinate

their business and production processes

in the plant, the company and the supply

chain while integrating and saving earlier

IT investments.

SIMATIC IT combines a stable standard

product which can get by with fewer

updates and permits adaptation on

specific manufacturing processes. By

carrying out "implied" product controls

(coordination of functionality) "explicitly",

they become less complex, less specific,

and subject to fewer modifications. This

makes them easier for other companies

or industrial sectors to use and easier to

adapt to specific manufacturing processes

and to modifications in that process. The

concept is based on an architecture which

combines model (explicit controls) and

components (functionality).

SIMATIC IT

SIMATIC IT is an MES concept, and

consists of cross-sector MES basic

functionality and a wide variety of

components which add specific

functionality. SIMATIC IT conforms to the

ISA S95 Standard, the focus of which is

not only on different functionalities, but

also on the processes and the workflow

required for a successful company.

SIMATIC IT Framework contains

modelling capabilities for plant

configurations and for production

models. It also contains basic IT services.

The explicit controls are described in

detail in SIMATIC IT Framework.

SIMATIC IT Components contain the

basic MES functionality required in the

various industrial sectors as well as other

industry-wide and industry-specific

components according to functionality

and application. Examples are labor

management/quality management,

central product specifications

management, and plant performance

analysis.

The MES concept from Siemens A&D AS

MES is contained in the SIMATIC IT

product family, and is suitable for

seamless vertical and horizontal

integration in Totally Integrated

Automation.

32


Glossary

Term

AS-Interface

ASIC

CbA

DP

Meaning

Actuator-sensor interface

Application Specific Integrated

Circuit

Component based Automation

Distributed I/O

Explanation

Interface for direct connection of simple binary sensors and actuators which

are compliant with EN 50295 (for transmission of small amounts of information).

Application-specific integrated circuit

Supports modularization in machine and plant construction through

plant-wide graphical centralization of distributed applications. CbA based

on the PROFInet Standard from PROFIBUS International.

Input or output modules used by the (controller) CPU as distributed I/O.

EIB

ESM

FMS

FO

FTP

Full Duplex

ILM

IM

Isochrone Mode

IT

JVM

LAN

Master

MES

MPI

OLM

OSM

OP

European Installation Bus

Electrical Switch Module

Fieldbus Message

Specification

Fiber Optic

File Transfer Protocol

Infrared Link Module

Interface Module

Java Virtual Machine

Local Area Network

Manufacturing Execution System

Multi-Point-Interface

Optical Link Module

Optical Switch Module

Operator Panel

European Installation Bus

Network components for setting up Industrial Ethernet networks.

PROFIBUS Layer 7 to IEC 61158/EN 50170

optics

File transfer protocol; for manual and program-controlled file interchange

with computers which have different operating systems

Capability of a device to send and receive data simultaneously. Collision

Detection is deactivated in Full Duplex mode.

Network components for wireless data transmission

Interface module

CPU, I/O and user program are synchronized to the PROFIBUS clock.

IT stands for Information Technology with e-mail and Web technology

from Siemens

Java is a platform-independent object-oriented programming language

similar to C++. The Java compiler, however, does not generate machine

code, but rather a byte code which must be interpreted. This is done with

the aid of the so-called Java Virtual Machine.

Local network

The master controls data transmission on the bus. Only one node may

be the master.

Multi-point interface for SIMATIC

Network components for setting up Industrial Ethernet networks

Network components for setting up Industrial Ethernet networks

33


Glossary

Term Meaning Explanation

OPC OLE for Process Control Standard interface for accessing process data

PG

Programming device

PROFIBUS International fieldbus standard to IEC 61158/EN 50170

PN PROFInet PROFInet-capable product version

PNO

PROFIBUS International

PROFIBUS DP

PROFIBUS PA

PROFIdrive

PROFInet

PROFIsafe

Protocol profile to IEC 61158/EN 50170for process or field communication

for high-speed, cyclic data interchange with field devices

Protocol profile based on PROFIBUS DP with intrinsically safe transmission

technology to IEC 61158-2

Protocol profile for drive technology based on PROFIBUS DP

Communication standard from PROFIBUS International

Protocol profile to IEC 61508, which enables standard communication and

fail-safe communication on the same bus

RLM Radio Link Module Access Point for setting up a local wireless LAN radio network to IEEE 802.11b

SFC System function calls System function calls integrated in the CPU operating system, e.g. timers

or block transfers

Slave

Socket

The stations addressed by the master are referred to as slaves. The

communication relationship between stations on the bus is therefore

referred to as master-slave relationship.

The Socket interface enables data communication with computers via

TCP/IP. Users can write their own programs using this interface, which is

popular and widely used in the PC and UNIX worlds. In the SIMATIC S7, the

SEND/RECEIVE blocks are used as access portal to TCP/IP.

S/R SEND/RECEIVE block Enables SIMATIC S7/C7 communication with other systems, SIMATIC S5s,

PGs and PCs via PROFIBUS and Industrial Ethernet.

Switching

Simultaneous establishment of multiple connections between ports. These

connections are established dynamically and temporarily based on the data traffic.

TCP/IP Transport Control Protocol/ De facto standard;

Internet Protocol

Protocol for worldwide communication over Ethernet.

Thin client

The principle of Thin Client/Server Computing is based on the fundamental

physical separation of data.

TIM Telecontrol Interface Module Telecontrol interface module

WAN Wide Area Network Data network with a diameter of more than 50 km, e.g. SINAUT

applications.

34


Fax form

This publication has hopefully provided you with an overview of communication methods and networks used in Totally Integrated

Automation.

Brochures and catalogs are available which provide more detailed information on specific devices, technologies and functionalities.

Please use this fax form and you will have the documents you need in just a few short days.

We would like to thank you for your interest and are looking forward to your fax.

Brochures

Totally Integrated Automation

Component based Automation

SIMATIC PCS 7 Process Control System

Network Solutions with Industrial Ethernet

Network Solutions with PROFIBUS

AS-Interface

IT Solutions

Mobile Communication

Fiber-optics Communication

DP/EIB Link

SIMATIC Controllers

Point-to-Point Communication Modules

SIMATIC S7-200

SIMATIC S7-300

SIMATIC S7-300F

SIMATIC S7-400

SIMATIC S7-400H and S7-400F/FH

SIMATIC C7

SIMATIC FM 458-1 DP

SIMATIC ET 200

SIMATIC TDC

LOGO! Logic Module

SIMATIC PCs

SIMATIC PGs

SIMATIC WinAC

SIMATIC Software

SIMATIC IT

SIMOTION

SIMATIC Mobile Panels

MOBY

Variable-speed Drives

Sensor Technology

SINAUT ST7

Catalogs

Automation components

- Catalog CA 01 - on CD-ROM

Siemens AG,

Infoservice A&D/Z068

++49 9 11 - 9 78 33 21

From

Name

Company

Position

ZIP Code/City

Country

Street Address

Telephone

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Please fax us at:

35


Additional information

In a number of SIMATIC NET components (e.g.

OSM/ESM, CPs with IT functions), extensive

parameter assignment and diagnostic

functions (such as Web server and network

management) are made available via open

protocols and interfaces.

These open interfaces form an access portal

to the components which can also be misused

for clandestine, dishonest activities.

When using the above-mentioned functions

and these open interfaces and protocols (e.g.

SNMP, HTTP, Telnet), it is thus necessary to

take safety precautions which prevent

unauthorized access to the components or

the network, particularly from a WAN or over

the Internet.

Automation networks should therefore be

separated from other company networks by

means of suitable network interfaces (such

as the field-tested firewall systems).

The information provided in this brochure

contains descriptions or performance

characteristics, which in case of actual

use do not always apply as described or

which may change as a result of further

development of the products.

An obligation to provide the respective

characteristics shall only exist if expressly

agreed in the terms of contract. Availability

and technical specifications are subject

to change without notice.

All designations marked in this Product Brief with ®

are registered trademarks of Siemens AG.

Other designations used in this publication may be

trademarks whose use by third parties for their own

purposes could violate the rights of the owners.

Siemens AG

Automation and Drives

Postfach 4848, D-90327 Nürnberg

Federal Republic of Germany

www.siemens.com/automation

Order No.: 6ZB5 530-1AE02-0BA5

Printed in the Federal Republic of Germany

26000/301593 WE 0403 5.

© Siemens AG 2003

Subject to change without prior notice.

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