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FOUNDATION™ Fieldbus
 

 

H1 H2 H2 bus powered

Typical Applications

Process, Smart, Factory

Process, Factory

Process

Data Rate bits/s

31.25k

1.0M

1.0M

Communication Technique

Single/Multi-Master

Single/Multi-Master

Single/Multi-Master

Media Access Method

Token Passing

Token Passing

Token Passing

Media Supported

Twisted Pair, Fibre-Optic

Twisted Pair, Fibre-Optic

Twisted Pair

Max. No. of Addressable Nodes

240 per segment or 2^16 per system

240 per segment or 2^16 per system

240 per segment or 2^16 per system

Deterministic *1

Yes

Yes

Yes

Intrinsically Safe

Yes

No

Yes

Bus Powered?

Yes

No

Yes

ASICs *2 Available

Planned

Planned

Planned

Physical Layer Standard

IEC 1158

IEC 1158

IEC 1158

Applicable Standards

IEC 1158, ISA 550

IEC 1158, ISA 550

IEC 1158, ISA 550

 
 PROFIBUS
 

 

DP FMS PA

Typical Applications

Process, Factory

Process, Factory

Process, Smart

Data Rate bits/s

To 1.5M and 12M

500K

31.25K

Communication Technique

Master/Slave, Peer to Peer

Master/Slave, Peer to Peer

Master/Slave, Peer to Peer

Media Access Method

Token Passing

Token Passing

Token Passing

Media Supported

Twisted Pair

Twisted Pair

Twisted Pair

Max. No. of Addressable Nodes

127 per network

127 per network

127 per network

Deterministic *1

No   

No   

No   

Intrinsically Safe

No   

No   

Yes

Bus Powered?

No   

No   

Yes

ASICs *2 Available

Yes

Yes

Yes

Physical Layer Standard

RS485

RS485

IEC/ISA/FF IEC 1158-2

Applicable Standards

EN 50170(Part 2) DIN 19245 EN 50 254

EN 50170(Part 2) DIN 19245

DIN 19245

 

 

ControlNET Modbus Interbus
Typical Applications Process, Factory Process, Factory Building Automation Process, Factory
Data Rate bits/s 5M Typ1.2K - 115.2K  500K
Communication Technique Producer/Consumer Master/Slave  Master/Slave 
Media Access Method CTDMA *3 Token Passing   None
Media Supported Co-ax, Fibre-Optic  Twisted Pair   Co-ax, Fibre-Optic 
Max. No. of Addressable Nodes 99 per link  247 per network  256 Stations
Deterministic *1 Yes   No   Yes
Intrinsically Safe No   No   No
Bus Powered? No   No   No
ASICs *2 Available Yes   No   Yes
Physical Layer Standard Generally based on differential Manchester encoding Not Specified  RS485 
Applicable Standards BSI draft standard prov EN 50254  Modicon Protocol PI-MBUS-300 Rev.E  DIN E 19258 prov EN 50254 
 

 

Ethernet

WorldFIP LONWORKS
Typical Applications Process, Data  Process, Smart, Building, Factory Automation  Process, Building, Factory Automation  
Data Rate bits/s 10M 31.5K, 1M and 2.5M 300 to 1.25M
Communication Technique Master/Slave, Peer to Peer  Producer/Consumer  Master/Slave, Peer to Peer 
Media Access Method CSMA/CD  Bus Arbiter Access  Predictive Media 
Media Supported Co-ax  Twisted Pair, Radio, Fibre-Optic  Co-ax, Twisted Pair, Radio, Fibre-Optic  
Max. No. of Addressable Nodes 400 per segment  256 per network  32,768 per domain 
Deterministic *1 No  Yes  No  
Intrinsically Safe No   Yes   Yes  
Bus Powered? No   Yes   Yes  
ASICs *2 Available Yes   Yes  Yes 
Physical Layer Standard Unbalanced Voltage  IEC/ISA/FF IEC 1158-2  Numerous 
Applicable Standards IEE802.3, ISO8802.3(10Base-5)  EN 50170(Part 3) LonMark Interoperability Association Guidelines 
 

 

CAN

HART AS-Interface
Typical
Applications
Process, Building, Factory, Vehicle Automation  Smart Instrumentation  Process, Building, Factory Automation 
Data Rate bits/s To 1M  1200  167K 
Communication Technique Producer/Consumer,
Peer to Peer 
Master/Slave   Master/Slave  
Media Access Method CSMA/CD/NDA  None  Cyclic polling 
Media Supported Twisted Pair, Fibre-Optic  Twisted Pair  Twisted Pair  
Max. No. of Addressable Nodes 2^11, or 2^29 in extended address mode  15 per loop  31 per network 
Deterministic *1 No  No   Yes 
Intrinsically Safe No  Yes   No  
Bus Powered? No   Yes  Yes  
ASICs *2 Available Yes  Yes, partial  Yes 
Physical Layer Standard Balanced Differential Voltage  4-20mA pair (f.s.k current modulation)  Balanced Differential Voltage  
Applicable Standards ISO 11898  HART Protocol Specification Rev 5.1 Physical Layer Rev 8.0 IEC947-5-2/D  EN60947 DIN VDE 0660/208
 
 NOTES
 
1 Deterministic : The ability to perform predefined tasks at precise times.
2 ASIC : Application Specific Integrated Circuit.
3 CTDMA : Concurrent Time Domain, Multiple Access.
 
Also see our Network Glossary
 
 USER GROUPS
 
» Fieldbus World
» Fieldbus Foundation
» WorldFIP Europe
» WorldFIP UK
» AS-Interface
» OLE for Process Control Online
» Profibus Home Page
» LonMark Interoperability Assoc.
» Virtual Hart Book
» HART Communications Foundation
» Open DeviceNet Vendor Assoc. » InterBus Club
» CAN in Automation » Industrial Ethernet Book
   
 
 
 
   
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