Profibus PA Siemens

SIMATIC PCS 7 Profibus PA

Automation and Drives

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Dou Lianwang

SIMATIC PCS 7

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ROFIBUSApplications in Process Industry

PAS BU 窦连旺博士



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Dou Lianwang

Value Transmission Technology4-20 mA, HART, fieldbus

digital

analog + digital (hybrid)

analog4...20 mA



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Dou Lianwang

Value Transmission TechnologyFewer analog-to-digital conversions

process control

DA

16 bit

AD

16 bit

mA AD

16 bit

AD

16 bit

CPU

CPU

CPU

CPU



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Dou Lianwang

process control

Value Transmission TechnologyMore accurate values / more information

DA

16 bit

AD

16 bit

0-65535 AD

16 bit

10-38-10+38AD

16 bit

Identification tag: = PI 012software version: = 1.1serial number: = 0M60237etc. .....1st process value = 70,322nd process value = 23,02engineering unit = mbarstatus = OK diagnosis = temperature high

CPU

CPU

CPU

CPU



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Dou Lianwang

Customer Prioritization of Fieldbus Benefits

0

Wiring Savings

Device Diagnostics

Ease of Installation

Improved Operati

ons

Remote C

omms

Predicti

ve Main

t.

Production Savi

ngsPrev

entive

Maint.

Contro

l in Fi

eld

10

20

30

40

50Su

rvey

Res

pond

ents



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Dou Lianwang

Standardized for field devices in process industry

TemperaturePressureFlowPositionersAnalysersetc.

PROFIBUSStandardized for all industrial application

PA D

evic

esPA

Dev

ices

PRO

FIdr

ive

V2.

0 an

d V

3.0

PRO

FIdr

ive

V2.

0 an

d V

3.0

Iden

tId

ent

SEM

ISE

MI

Enco

der

Enco

der

RIO

forP

AR

IOfo

rPA

CommonApplicationProfiles I

IEC 61158/61784

Wei

ghin

g &

Dos

age

Wei

ghin

g &

Dos

age

PROFIBUS DPOne uniformTransmissionProtocol

TransmissionTechnology

PA D

evic

esPr

oces

s Fi

eld

Dev

ices

PRO

FIdr

ive

V2.

0 an

d V

3.0

PRO

FIdr

ive

Iden

tId

ent

SEM

ISE

MI

Enco

der

Enco

der

RIO

forP

AR

emot

e I/O

Inte

grat

ion

Tech

nolo

gies

Uni

vers

al D

escr

iptio

ns

GS

D, E

DD

, FD

T/D

TM

IEC 61158/61784

Wei

ghin

g &

Dos

age

Wei

ghin

g &

Dos

age

PROFIsafe, Time Stamp, Redundancy, etc.

ElectricalRS 485RS 485-IS (Intrinsically Safe)

OpticalGlass Single ModeGlass Multi ModePCF / Plastic

Bus poweredMBP-IS: Manchester BusPowered (Intrinsically Safe)

SpecificApplicationProfiles II

Analogy:

Communication between people

Physics:E-Mail, Letter, Air

Language: e.g. English

Specialised vocabulary:

EngineersLawyersDoctors…

Only one protocol PROFIBUS DP - for PROFIBUS DP and PA !!Huge application area due to standardized application profilesVendor independent device descriptions (EDD, GSD, FDT/DTM)



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PROFIBUS DP and PA

PROFIBUS PA

segmentcoupler

T

SPS/PLC PC

PROFIBUS DPTT



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Dou Lianwang

PROFIBUS PA

• remote power supply and communicationin 2-wire technology (EEx and standard)

• integrated reverse-connect protection possible

• fixed transmission rate of 31.25 kBit/s

• up to 32 participants per segment (up to 10 for EEx-ia IIC applications)

• line length up to 1900 m(EEx up to 1000 m)



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Dou Lianwang

I

t

I B =10 mA

19 mA

1 mA

1 Bit

Bits: 1 0 1 1 0

1 Bit

PROFIBUS PAManchester II Code



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Dou Lianwang

PROFIBUS PAFISCO model

FISCO = Fieldbus Intrinsically Safe ConceptFeatures:

devices are current sinksonly one segment coupler powersdevice capacity and inductivity are limitedlimited line length to 1000 mlimited spur length to 30 m/device, not cascaded

Advantages:no calculation of intrinsic safetysimple connection simple to be extendedno EEx system certification necessary!



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Dou Lianwang

PROFIBUS PABus powered supply

PROFIBUS DP

PROFIBUS PAMBP Max. 1900 m

UBUS = 24 VI BUS = < 400 mA

PROFIBUS DP

PROFIBUS PAMBP-IS Max. 1000 m

UBUS = 13,5 VI BUS = < 110 mAfor ia / ib IIC



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PROFIBUS PAIntrinsic safety of 2-wire devices

Max. spur length

No. of nodes 1-10

30 m

TPROFIBUS PA

PROFIBUS DP

trunk line

spurs



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PROFIBUS PALine topology with spurs

TPROFIBUS PA

PROFIBUS DP

trunk line

spurs

1-12 13-14 15-18 19-24 25-32

120 m 90 m 60 m 30 m 1 m

No. of nodes

Max. spur length



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PROFIBUS PA„Chicken foot“ topology

TPROFIBUS PA

200 m

5 m

8 m

6 m10 m

PROFIBUS DP



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Architecture of a PROFIBUS Control System



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Network Architectures for Process Automation

PROFIBUS based System Fully distributed architecture PROFIBUS DP for high speed connection of remote I/O, drives, MCC, analyzers,..PROFIBUS PA for bus powered devicesVendor independent integration of PROFIBUS devicesAdditionally PROFIBUS provides:

Safety, HartIndustrial Fast Ethernet

PRO

FIBU

S -D

P

ET200S

ET 200M

ET 200iSHART

PROFIBUS-PA

PROFIBUS-DP (iS)

DP/PA Link

PROFIBUS-PA

Zone 1

Zone 0

Zone 2



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Dou Lianwang

Possible faults in a PROFIBUS PA segment

failure effect estim. of harm

1 breakdown of PA Coupler breakdown of up to 31 devices

2 short-circuit / wire break on backbone breakdown of up to 31 devices

3 short-circuit / wire break on spur breakdown of typ. 1-4 devices

4 missing bus termination disturbance of communication

max. 31 devices per coupler

IM 153 redundant

DP/PA coupler, non redundant

23 backbone

spur

...

bus termination

PROFIBUS DPPROFIBUS PA

1

spur

4



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Dou Lianwang

Redundant PROFIBUS PAOverview

PRO

FIB

US

DP

PRO

FIB

US

DP

IM 153, redundant

DP/PA coupler, redundant (M = master)

bus termination

Active Field Splitter

M

M

AFS

AFD

Coupler redundancy

PA ring redundancy

Active Field Distributor

AFD AFD AFD

PROFIBUS PA

PROFIBUS PA

IM 153, redundant

DP/PA coupler, redundant (M = master)

automatic bus termination



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New Components

FDC 157-0 DP/PA coupler (6ES7157-0AC83-0XA0)

The FDC 157-0 DP/PA coupler replaces the previous DP/PA coupler (6E7157-0AC82-0XA0)

BM FDC 157-0 bus module (6ES7195-7HG80-0XA0)

AFD active field distributor

(6ES7157-0AF81-0XA0)

AFS active field splitter

(6ES7157-0AF82-0XA0)

DIN rail adapter for AFS and AFD (6ES7157-0AF83-0XA0)

IM153-2 interface module (6ES7153-2BA81-0XB0)

The IM153-2 interface module replaces the previous IM157 interface module



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S1

S2U1,I1 U2, I1

Automatic trunk line switch over

IP66 case, PG connectors

Temp. range: -20° … 70°

Usage within Ex zone 2

Diagnosis through LEDs

Active Field Splitter

PRO

FIB

US

DP

IM 153, redundant

DP/PA coupler, redundant

AFS

M

PROFIBUS PA

Use case: coupler redundancy



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Use case: ring redundancy

Automatic monitoring of trunk line

Automatic bus termination

IP66 case, PG connectors

Short-circuit proof spurs (60mA)

Temp. range: -20° … 70°

Usage within Ex zone 2

Diagnosis through LEDs

Active Field Distributor

PRO

FIB

US

DP

AFD

S1

S2

S3

U1, I1 U2,I2

bus termination

-

M

PROFIBUS PA


IM 153, redundant



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M

Use case: multiple couplers per link

PRO

FIB

US

DP

AFD AFD AFD AFD

PROFIBUS PA



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Dou Lianwang

PRO

FIB

US

DP

IM 153, redundant


AFS

-

M

PROFIBUS PA

Use case : coupler redundancy with central supply



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Dou Lianwang

Use case: coupler redundancy in combination with field barriers for Ex-applications

PRO

FIB

US

DP

IM 153, redundant


AFS

M

field barrier

31V, 1A

PROFIBUS PA



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Dou Lianwang

Benefits:Cost Savings (no F-I/Os req.)

Seamless Integrated FailsafeCommunication down to the fielddevice

Extended Diagnostics

Simplified Periodic Testing

Seamless Integrated in Engineering and Maintenance

PROFIsafe onPROFIBUS-PA

4..20 mA

PROFIsafe on PROFIBUS-DP

F-CPU F-CPU F_PA_DI

F_PA_AI

new

PROFIsafe

Fail Safe Communication on PROFIBUS with PROFIsafe



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Dou Lianwang

Standard architecture for fault tolerant and fail-safe applications

PRO

FIB

US

DP

1oo2

S7-400FH

1oo2

S7-400H/FH

PRO

FIB

US

DP

2oo3

Fail-safe measurement (1oo2) Fault tolerant measurement (2oo3)



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Dou Lianwang

Using PROFIBUS PA ring topology for fault tolerant and fail-safe applications

PRO

FIB

US

DP

2oo3

1oo2

S7-400FH

DP/PA Coupler, redundant

IM 153, redundant



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Diagnosis with Plant Asset Management System

Diagnostics with SIMATIC PDM

Device-specific detailed diagnostics

Standard diagnostics



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Dou Lianwang

运行节点数

PROFIBUS: 20,000,000节点

PROFIBUS PA: 670,000节点

PROFIBUS Nodes Installed in Process Industries:

3,300,000节点

PROFIsafe: 230,000节点



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PROFIBUS PA Book

惠敦炎教授翻译

西南师范大学出版社出版



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Summary

Installation Nodes

Products

FISCO

Redundancy

Safety

Plant Asset Management (Diagnosis, Maintenance, etc.)

Interoperability and Interchangebility

… …



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欢迎各位专家批评指正

谢谢！

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