simba bus. the simba network bus supply (master) internet gateway terminator repeater (optional)...

SIMBA Bus

The SIMBA Network

Bus Supply (Master)

Internet Gateway

Terminator

Repeater (optional)

Device 2

INTERNETINTERNET

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

Features & Benefits

Low cost Simple architecture High scalability Accommodate simple or complex protocols Modular design Distributed intelligence Capable of powering devices

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

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

Supported Topologies

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

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

Applications

Industrial monitoring and control Power station monitoring Rail/road tunnel monitoring Traffic monitoring and control Smart homes Alarm and security

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

Specifications (Contd.)

Web connectivity IBM PC or embedded PCs

Devices supported Administration (500) Application 904 (3-8 mux)/1792 (4-16mux)

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

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