The successful application of industrial networks depends on good planning and robust design. We’ll look at some of the considerations around PROFIBUS DP/PA network design, networking components, network drawings and the tools available to assist you. As ethernet based networks become more popular, can the existing plant networks continue to be utilised?

1. Andy Smith – Endress+Hauser Ltd
PROFIBUS DP/PA network design

2. 2PROFIBUS UK 2Andy Smith Endress+Hauser Ltd © 2019
PROFIBUS Architecture
Ethernet
Operator stations
Engineering workstation
Profibus DP
Networking components
Controllers
IO
Link modules / gateways
Measurement devices
Profibus PA
Networking components
Connectors
Measurement devices

3. 3PROFIBUS UK 3Andy Smith Endress+Hauser Ltd © 2019
With PROFINET is PROFIBUS still relevant?
Coupler / Link
PROFIBUS-DP
PROFIBUS PA
Proxy
PROFINET
PROFIBUS PA
In the long view PROFIBUS DP will be replaced by PROFINET in new projects
PROFINET will become the backbone of PROFIBUS PA
PROFIBUS PA will grow due to its unique strengths in process industries
bus powering of devices
distance – 1900m safe area
designed for use in explosion/hazardous areas - easy application
PA Profile for easy life-cycle management
Past & current: Current & future:

4. 4PROFIBUS UK 4Andy Smith Endress+Hauser Ltd © 2019
Project delivery
Instrument selection
System architecture design
Network design
Network components selection
Field enclosures
Installation
Performance and safety calculations
Design deliverables
Integration
Test & verification
Asset Management
Maintenance & training

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Project delivery process
Operations
Maintenance
Procurement
Logistic
Installation
Basic
Engineering
Detailed
Engineering
Commissioning
OPEXCAPEX
Architecture &
Network Design
Network
Maintenance
Design Review
Integration
& Commissioning
Installation, Test
& Verification
Asset Information Management Documents
On-Site Services
Engineering & Design Services
© 2019Andy Smith Endress+Hauser Ltd

6. 6PROFIBUS UK 6Andy Smith Endress+Hauser Ltd © 2019
Engineering principles and guidelines
Design documents
Installation guidelines
Commissioning documents
Available on Profibus.com
Some freely available
Some require membership
Documents also available
from some manufacturers
Certified training is available

7. 7PROFIBUS UK 7Andy Smith Endress+Hauser Ltd © 2019
Engineering principles and guidelines
www.profibus.com

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Example - engineering principles and guidelines
Profibus DP
RS 485
Profibus PA
MBP Max. 1900 m
UBUS = 24 V
I BUS = < 400 mA
Profibus DP
RS 485
Profibus PA
MBP-IS Max. 1000 m
UBUS = 13,5 V
I BUS = < 110 mA
for ia / ib IIC
© 2019Andy Smith Endress+Hauser Ltd

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Example - engineering principles and guidelines
T
Profibus PA
Profibus DP (RS 485)
1-12 13-14 15-18 19-24 25-32
120 m 90 m 60 m 30 m 1 m
Networks with spur lines
Trunk line
Spur
Max. spur length (each)
No. of nodes
© 2019Andy Smith Endress+Hauser Ltd

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Example - engineering principles and guidelines
© 2019Andy Smith Endress+Hauser Ltd
Example: Cable Length (Profibus DP)

11. 11PROFIBUS UK 11© 2019
Network design – system architecture
Physical locations
Location of local panels
Location of each plant device
Single level or on different elevations?
Can devices be grouped?
Cable routing and containment
Ease of commissioning & maintenance
Number of devices in a cell(Each square is 6m x 6m)
Basic plot plan
Segmentation
Andy Smith Endress+Hauser Ltd

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Networking components
T
T
T
T
DP Hubs, repeaters connectors DP / PA gateways, couplers PA junction boxes, segment protectors, cable sets
Andy Smith Endress+Hauser Ltd

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Segment calculations and design tools
Andy Smith Endress+Hauser Ltd

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Segment design drawings
Andy Smith Endress+Hauser Ltd

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Asset management considerations
Consider asset management early
How do I access my devices?
How do I access my networks?
What’s the impact on the networks?
Used during project commissioning
Simplifies maintenance procedures
Improves plant availability
Andy Smith Endress+Hauser Ltd

16. 16PROFIBUS UK 16© 2019
Asset management considerations in design
Andy Smith Endress+Hauser Ltd
Field
controller
DP
PA
Asset
monitoring
Process
control
Device
configuration
Ethernet
Network diagnostics
PA Network diagnostics Device configuration
Device diagnostics
Network
monitoring
Diagnostic
faceplates

17. 17PROFIBUS UK 17© 2019
Contact details
Andy Smith Endress+Hauser Ltd
Endress+Hauser Ltd
Andy Smith
Associate Director
Engineered Solutions
Floats Road
Manchester M23 9NF
Phone: 0161 286 5000
Mobile: 07711 214383
E-mail: andy.smith@endress.com
Web: www.uk.endress.com