The PROFIBUS and PROFI­NET communication pro­tocols seem made for each other - – which isn’t at all surprising, since good relationships are built on communication and hav­ing a lot in common. Their affiliation seems to have been fated from the start though, as both were created in Karlsruhe, Germany through the co­operation of groups from all around the world. This presentation will go over similarities between the two protocols highlighting how easy it is to move from one protocol to another. When either combining PROFIBUS and PROFINET into the same system or moving from PROFIBUS to PROFINET, an end user is going to notice a number of similarities that will make moving from one to another very easy. During this presentation James will be going over the following: Shared history and organization Similarities in Setup procedure Shared Identification Similar communications priorities Similar data maps

1. PROFIBUS &
PROFINET
A match made
in Karlsruhe
By: James Powell
P.Eng.

2. PROFIBUS and PROFINET
– two protocols, both alike
in dignity, in fair Stradford,
where we lay our scene.

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James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe
Agenda
Introduction
Shared history and organization
Similarities in setup procedure
Shared identification
Similar communications priorities
Similar data maps
Similar design question
Same grounding rules
Similar troubleshooting
Conclusions
Questions and answers

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James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe
Introduction
Personal journey:
1999 – certified PROFIBUS DP network Engineer
2000 – neck deep in first major PROFIBUS network problem
2009 – Published a book on PROFIBUS for process automation
2011 – certified PROFIBUS DP and PA instructor
2012 – certified PROFINET network Engineer
2013 – worked on my first PROFINET network problems
2015 – published 2nd edition – added PROFINET

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James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe
Introduction

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James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe
Shared history and organization
PROFINET was developed from PROFIBUS
PROFIBUS is like a book with many chapters:
• PROFIdrive
• PROFIsafe
• PROFIBUS PA
PROFINET is like a book with many chapters:
• PROFIdrive
• PROFIsafe
• PROFIBUS PA

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James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe
Shared history and organization
A Profile is a standarization of a particular type of field device from
the bus point of view, regulating how the information is presented
on the bus and in what format, as well as defining standard
parameters and setup.
Profiles for:
Drive systems
Process automation
Robots and numerical control
Encoders
Hydraulic drives
Low voltage switchgear
Dosing and weighing
Liquid pumps
Innovation

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James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe
Shared history and organization
One organization to rule them all ...

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James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe
Similarities in setup procedure
With PROFIBUS:
Import the GSD file into the network configuration software
Drag the device onto the network
Setup the modules
Download to controller
With PROFINET
Import the GSD file into the network configuration software
Drag the device onto the network
Setup the modules
Download to controller

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James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe
Similarities in setup procedure
With PROFIBUS the line is purple

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James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe
Similarities in setup procedure
With PROFINET the line is green

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James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe
Shared Identification
Devices look the same:

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James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe
Shared Identification
Identification and maintenance information:
Order number of the field device
MAC address
Hardware version
Software version
Device type
Vendor ID

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James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe
Similar Communication Priorities
Cyclic communications – top priority
Acyclic communications – lower priority
PLC
CLASS 1 MASTER
IO-Controller
GSD
File
ENGINEERING STATION
CLASS 2 MASTER, IO-Supervisor
EDD
Or DTM

15. PROFIBUS Cyclic and acyclic
Read process variables,
write manipulated variables
Parametrization,
Extended Diagnostics
t
cyclic
1
cyclicacyclic
PROFIBUS DP
PROFIBUS PA
32 4 1
GSD EDD
James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe

16. PROFINET Cyclic and Acyclic
James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe

17. PROFINET Cyclic and Acyclic
James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe

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James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe
Similar Data Maps
PROFIBUS PROFINET

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James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe
Similar Design Questions
Designing any network you have a similar process:
Locate the equipment
Group the equipment from a network point of view
Select best pacement of network equipment
Be ready to modify
PROFIBUS DP, PA and PROFINET also a question about
constant monitoring?
With DP – Do I design in a bus monitor (COMbrick or SoftingTH-
scope)
With PA – Do I use dumb terminal strips or an advanced junction box
with short circuit protection and a built in repeater
With PROFINET – Do I use a managed switch?

20. Grounding rules!
Ground at every point
Use grounding grid and possibly a grounding cable as well
T
T
A
B
SHIELD
GROUND
DP CABLE
TERMINATOR T

21. Riddle me this batman!
What are the three most common causes of PROFIBUS
and PROFINET network Issues?
1. Physical layer problems!
2. Physical layer problems!
3. Physical layer problems!
James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe

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James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe
Troubleshooting
Physical layer checking is similar:
Check grounding
Check cables
Tools are different:
PROFIBUS DP and PA – use a meter to check cables
PROFINET - use a cable tester
Bus Monitors:
PROFIBUS is mature – Tools like ProfiTrace and Softing‘s bus tester
PROFINET – Netilities NetProfi, netAnalyzer

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James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe
Conclusion
The two protocols have
Shared history and organization
Similarities in setup procedure
Shared identification
Similar communication priorities
Similar data maps
Similar design question
Same grounding rules
Similar troubleshooting

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James Powell / PROFIBUS and PROFINET – A match made in Karlsruhe
Questions?

25. Thank you!
James Powell
Senior Product Specialist
Industrial Communications
PD PA S PI TEC 6
Siemens Milltronics
1954 Technology Drive
Peterborough
Ontario, Canada
K9J 7B1
Phone: +1 (705) 750-5295
Cell: +1 (705) 750-5295
E-mail:
james.powell@siemens.com