The document presents trunk to spur coupling solutions utilizing the new fieldbus H1 card with integrated power, emphasizing the significance of segment protectors and fieldbarriers for reliable fieldbus installations in both general and hazardous areas. It outlines advantages of high power trunk (HPT) technology over traditional FISCO methods, such as reduced installation costs and increased flexibility in design. Additionally, the document highlights Pepperl+Fuchs' contributions and recommendations for Emerson's foundation fieldbus projects, underlining their preferred partnership in delivering advanced solutions.

2. Presenters
Bernd Schuessler Gary Tapperson

3. Introduction
 Trunk to spur coupling solutions using the new Fieldbus
H1 card with integrated power
Agenda
 New integrated Fieldbus power supply
 High Power Trunk: One concept for all applications
 Segment Protectors in general purpose and Class I,
Div.2/Zone 2 areas
 FieldBarriers in Class I, Div.1/Zone 1/0 areas
 Summary

4. Preferred Partner Solutions
 ... Emerson considers Pepperl+Fuchs a "preferred
partner" for Foundation Fieldbus projects.
 Emerson prefers to use technologies from P+F,
whether internal to Emerson products or as
integrated stand-alone P+F products.

5. Trunk to Spur Coupling with Internal Ff Power
Control Room Field Safe or Class I, Div.2 Area
P+F Ff P+F Ff
Segment Protectors FieldBarriers
Internal Ff power Class I, Div.1
(this product is a combined
Emerson P+F solution)
SE4017P0/37P0

6. Trunk to Spur Coupling with External Ff Power
OPTION 2: Offer external power and SafeP+F stand-alone Ff ADM module
Control Room the or Class I, Div.2 Area
Field
Emerson DeltaV SE4017P0/37P0 with
external Pepperl+Fuchs Ff Power Supplies
P+F Ff
Power
Supplies
24V Bulk
Power
Optional P+F Ff ADM
(Advanced Diagnostics Module)

7. High Power Trunk
One Concept - All applications
High Power Trunk: General Purpose
-Up to 30V/400 mA
-Longer cable runs
Reliable Fieldbus Power: -Max. number of instruments
-2 powered FF segments per segment - even for IS
-Simplex or redundant
-Ext. Advanced P.L. Diagnostics optional NI and IS protection is done
-Robust communication in the field Zone 2/
-Segment Protectors
Div.2
-FieldBarrier
-Distributed architecture
Zone 2/ Div.1
Div.2 Zone 1

8. High Power Trunk (HPT) vs FISCO
 HPT enables utilization of same DCS and FF segment architecture for
both general purpose and I.S. applications
 Over 25,000 FieldBarriers installed in the field
 HPT eliminates the short-comings of FISCO (Fieldbus Intrinsically Safe
COncept)
– High system installation cost
– Reduced FF cable length (1000m max)
– Potentially increased number of DCS H1 interfaces
– Large cabinet space requirements for DCS H1 interfaces, wiring, and
FF FISCO power
– Limited power => reduced number of field devices on a segment
 HPT supports FF segment power conditioner redundancy, providing load
sharing and not requiring “switch-over”
 Smaller size in the control room:
– ½ the footprint of a simplex FISCO
– ¼ the footprint of redundant FISCO

9. Field Equipment
 Pepperl+Fuchs Trunk to Spur Couplers
– Segment Protectors for Field Devices on Spurs
in General Purpose Environments or Spurs in
some specific Hazardous Environments
(Zone 2 / Div 2)
– FieldBarriers for Field Devices on Spurs in
Hazardous Environments
(Zone 1/0 or Div 1)

10. High Power Trunk in General Purpose
and Class I, Div.2/Zone 2 Area
Control Room
Internal FF power
(this product is a combined
Emerson P+F solution)

11. Segment Protectors
Complies with Foundation
 Short circuit protected spurs (<58mA) FF- 846 Device Coupler Spec.
 Over voltage protection
 Trunk in/out T-connector
 LED’s for power, com., short
 Nonincendive spurs =>
live maintenance in Div.2!
 4,6,8,10 and 12 spur versions
 For general purpose and Class I, Div.2 appl.
 Built in, selectable terminator
 DIN-rail mountable
 P+F offers a variety of different
field junction box enclosure styles and materials

12. Reliable Operation
 Replace or add field devices
during normal operation
 Plug-in terminals with
retaining screws
 LED’s indicate status
 Test points at trunk and spurs
 One pre-commissioned, high
available Fieldbus terminator
- Redundant layout
- EMC Class A compliant

13. High Power Trunk in Class I, Div.1/Zone 1/0
Class I, Div.2 or Zone1
Internal FF power
(this product is a combined
Emerson P+F solution)
Class I, Div.1/Zone 1/0

14. FieldBarrier for Intrinsic Safety
 4 short circuit protected, current limited IS outputs
 Same control room design for IS and non-IS
 Connects 4 IS (Entity or FISCO) field devices
 Up to 12 devices/segment (3 FieldBarriers)
 Galvanic isolation between non-IS trunk and IS
spurs
 40 mA per spur (typically 1 device)
 120 m (393 ft) max. spur length
 Built-in selectable terminator
 Div.2/Zone 1 mountable
 DIN rail/cabinet mountable version
 Custom enclosures

15. Y-Purge with FieldBarrier
Control Room Field Safe or Class I, Div.2 Area
OPTION 2: Offer external power and the P+F stand-alone Ff ADM module
Class I, Div.1 Area
Fieldbus Trunk in *FieldBarrier in Y-
conduit with poured Purge enclosure
seals
General purpose
wiring
Intrinsically safe
Instruments (live *FieldBarrier offers non-IS
work permitted) trunk connections and
intrinsically safe spurs

16. Explosion Proof/Flame Proof Installation
Control Room Field Safe or Class I, Div.2 Area
OPTION 2: Offer external power and the P+F stand-aloneArea
Class I, Div.1 Ff ADM module
Fieldbus Trunk in conduit
with poured seals
Intrinsically Safe
Spurs
FieldBarriers in Explosion
Proof enclosure
Intrinsically safe
Instruments (live
work permitted)

17. Business Results Achieved
Fieldbus Trunk to Spur Coupling
 Reduces project risk during start up and operation
 Increases plant uptime
 Reduces installation cost when used together with
High Power Trunk in hazardous locations

18. Summary
 Trunk to spur coupling solutions like segment
protectors and FieldBarriers are critical to assure a
reliable, error free fieldbus installation
 They protect the entire network from a single short
 In combination with a High Power Trunk approach,
they can bring the same benefits from using FF in
safe areas to hazardous locations

19. Where To Get More Information
 White papers and additional information on Trunk to spur
coupling and other P+F solutions:
www.pepperl-fuchs.us
Question about this presentation, feel fee to contact:
Bernd Schuessler
bschuessler@us.pepperl-fuchs.com
Gary Tapperson
gtapperson@us.pepperl-fuchs.com