Nuts and Bolts of Smart Instruments
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Transcript of Nuts and Bolts of Smart Instruments
Technology Training that Workswww.idc-online.com/slideshare
The Nuts and Bolts of smart instrument
standards
By
Steve Mackay
Technology Training that Workswww.idc-online.com/slideshare
Presented by :Steve Mackay PhD
Dean of Engineeringof the
Engineering Institute of Technology
Technology Training that Workswww.idc-online.com/slideshare
EIT Micro-Course Series• Every two weeks we present a 35 to
45 minute interactive course• Practical, useful with Q & A
throughout• PID loop Tuning / Arc Flash
Protection, Functional Safety, Troubleshooting conveyors presented so far
• Upcoming: – Electrical Troubleshooting and
much much more…..• Go tohttp://www.eit.edu.au/slideshare• You get the recording and slides
Technology Training that Workswww.idc-online.com/slideshare
Digital Technologies- Summary
Ethernet
KnowledgeBase
HART
FF
Profibus PA
Profibus DP
Devicenet
AS-I
PriceAcceptanceFieldIntelligence
EaseBus
(Slide compliments of Emerson)
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Generic Fieldbus Advantages: Let’s Take Off!
• Wiring savings• Hardware savings - fewer devices (instruments barriers and I/O) • Documentation savings - Simpler layout and drawings• Reduced Engineering costs• footprint savings• Multi-variable field devices• Interoperability and freedom of choice• Reduced Commissioning and startup costs• Reduced downtime• Integrity improved• DCS future capacity savings
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“Footprint” Space SavingsBefore- 256 I/O Fieldbus -4000 I/O
(Slide Compliments of Emerson & Jim Russell)
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Which fieldbus to Select?There is ONE RIGHT fieldbus for YOU
Engineer must decide based on: Technical Profile, budget, NPV including LONG TERM COST OF OWNERSHIP
Business Requirements
DISCRETE - Bottling plant would be mainly discrete-most effective solution ASi- Same may be the case for building automation
DISCRETE+CONTINUOUS - Motor Vehicle Manufacturing Plant or Electrical Motor Control Centre- Profibus DP
CONTINUOUS PROCESS PLANT - Hybrid approach likely- MCC (Profibus DP), PLCs (Modbus) and CPP Foundation fieldbus or Profibus PA. (Foundation fieldbus is being selected by major CPP Operators because of its advanced features)
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Foundation FieldbusPHYSICAL LAYER WIRE MEDIUM
H1 & HSE APPLICATIONS
SCADABRIDGE
H1
ANALYZER
PLCH1… Lower Speed Fieldbus• 31.25 Kbps• Replaces 4 to 20 mA• 2 - 32 Devices• Power & Communications• Intrinsically Safe• Twisted-pair• 1900 m length
PLC
SERVER GATEWAY
ETHERNET
HSE
HSE… High Speed E t h e r n e t• 100 MBps
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FIELDBUS CASCADE CONTROL
Playing Lego
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Profibus
CNCPC/VME
VME/PCPLC DCS
AreaController
Ethernet/TCP/IP TCP/IP/Ethernet
PROFIBUS-FMS
PROFIBUS-DP PROFIBUS-PA
Factory level
Bus CycleTime
< 1000 ms
Cell Level
Bus CycleTime
< 100 ms
Field Level
Bus Cycle-Time
< 10 ms
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ETHERNET AND TCP/IP
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Ethernet – The New “RS-232” for Process Control
• Ethernet has become the preferred method to connect controllers from competing vendors.
PLC Network
DCS
PLCEthernet
DCS Network
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Thank You For Your Interest
If you are interested in further training, please visit:http://www.idc-online.com/slideshare