1. SIMBA Bus

2. The SIMBA Network Bus Supply (Master) Internet Gateway Terminator Repeater (optional) Device 2 INTERNET

3. 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

4. Features & Benefits Low cost Simple architecture High scalability Accommodate simple or complex protocols Modular design Distributed intelligence Capable of powering devices

5. 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

6. 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

7. Supported Topologies

8. 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

9. 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

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

11. 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

12. Specifications (Contd.) Web connectivity  IBM PC or embedded PCs Devices supported  Administration (500)  Application 904 (3-8 mux)/1792 (4-16mux)

13. 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 2 nd in open hardware contest Techfest IIT Bombay

14. The SIMBAians Harish Ramamurthy, Anurag John, Vaibhav Shah, Rohit Aggarwal and Puneet Sahni Under the Guidance of Prof. N. K. Khosla Department of Metallurgical Engg. IIT Bombay