simba bus. the simba network bus supply (master) internet gateway terminator repeater (optional)...
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SIMBA Bus
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The SIMBA Network
Bus Supply (Master)
Internet Gateway
Terminator
Repeater (optional)
Device 2
INTERNETINTERNET
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Overview
Efficient and cost effective implementation of field bus
Industrial/scada/signaling applications Two wire digital communication framework Web/internet gateway Efficient use of bandwidth by simultaneously
accommodating different data rates
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Features & Benefits
Low cost Simple architecture High scalability Accommodate simple or complex protocols Modular design Distributed intelligence Capable of powering devices
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Features & Benefits
Web/internet connectivity Simple web browser-based interface Flexible speed/distance implementation Topology independence High immunity to power line noise Remote connectivity through modems Secure remote administration
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Administration Protocol
Features Bus driver acts as master Dynamic address allocation Commands by master Peer to peer communication Master-slave interaction enables instructions
exchange and possible execution Collision detection and avoidance
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Supported Topologies
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Features Expandable bus ~1000 channels supported Variable data rates Accommodates fast and slow devices simultaneously Multiple device type Binary , BCD input and output
Application Protocol
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Supported Devices
Analog input/output Voltage as well as 4-20 ma TX/RX interface
Digital input/output Seven segment display, LCD display Counter/timers and display devices
Gateway devices CANBUS, MODBUS, PROFIBus connectivity
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Applications
Industrial monitoring and control Power station monitoring Rail/road tunnel monitoring Traffic monitoring and control Smart homes Alarm and security
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Specifications
Speeds upto 10kbs Speed (10kbs) – distance (10km) tradeoff
Phantom powered devices 100 devices (~0.4 ma load current)
Any twisted pair media supported Tested on CAT-5 and telephone cable
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Specifications (Contd.)
Web connectivity IBM PC or embedded PCs
Devices supported Administration (500) Application 904 (3-8 mux)/1792 (4-16mux)
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Achievements
Compatibility with devices used by KRCL Selected for use at IIT’s internal SCADA system Implementation in IIT
Connecting EE – meta dept. Through telephone exchange(MTNL office)
Awarded 2nd in open hardware contest Techfest IIT Bombay
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The SIMBAians
Harish Ramamurthy, Anurag John, Vaibhav Shah,
Rohit Aggarwal and Puneet Sahni
Under the Guidance of
Prof. N. K. KhoslaDepartment of Metallurgical Engg.
IIT Bombay