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INDIA VS WEST INDIS 1ST TEST

Rohit hits century in his debut test

14 th Indian to do so.He fights when India is in trouble and made 127 not out on day 2. When Play stopped India on 354/6  in (102) overs.Partnership of 198 with Ashwin (70) made huge wall for west indies and led by 120 runs. Though starting of India was not good. Except Dhoni (42) all batsman not shown their performance.Even master blaster sachin made 10 runs in his 199th  test.

First century on test debut Indian 
          Name                             

1. Rohit Sharma (177)
2. Shikhar Dhavan(187)
3. Suresh Raina(120)
4. Virendar Sehwag(105)
5. Sovrav Ganguly(131)
6. Pravin Amre(103)
7. Mohammad Azaruddin(110)
8. Surindar Amarnath(124)
9. Gundappa Viswanath(137)
10. Hanumant Singh(105)
11. Abbas Ali Baig(112)
12. AG Kripal Singh(100)*
13. Deepak Shodhan(110)
14. Lala Amarnath(118)  

PLC MANUFACTURER AND THEIR SOFTWARES

                 

Nowdays may manufacturers are making plc's.Companies like SIEMENS,ALLEN BRADELY,MITSUBISHI,MESSUNG etc and more other are enter in this field .

so some information about them

1.SIEMENS

MODEL NO -                                             S7 200

PLC TYPE    -                                             MODULAR/FIXED TYPE

COMMUNICATION PROTOCOL-           RS232

SOFTWARE USED-     STEP7 MICROWIN (TO SET COMMUNICATION   & PROGRAMMING)

                                -      Siemens s7 200 simulator

PLC

PLC stands for.........

                                   Programming Logic Controller

      

                         It is digital computer &automates electromechanical processes.Many industries are using PLC.

Design

• multiple input and multiple output
• works in high temperature range 
• immune to high electrical noise 
• program stored in its memory which is non volatile.

 

Programming languages 

1. ladder builder
2. functional block diagram
3. structured text
4. instruction list
5. sequential function chart

1. Ladder builder

 

 2. Functional block diagram

 

 3. Structured text

 

4. Instruction list

 

5. Sequential flow chart

Features

• It can operate in severe condition like (dust ,moisture,heat,cold)
• At the i/p side switches , sensors  are available to read values .
• At the o/p side motors ,hydraulic cylinder ,magnetic relays,solenoid & analog o/p are available.  

 Plc operation 

It consist of two basic part

• CPU
• input/output interface

CPU controlls all plc operation .It has three compnent:

• processor
• memory system
• power supply

"Scan Cycle"

During scan cycle,

1. plc reads /accepts the input data from field 
2. it execute program stored in memory
3. and at the o/p interface it writes the data

System scale 

means It has fixed  or variable i/o connection
so it has two types

1. Fixed (i/o are fixed in number cant change)
2. Modular /Rack (i/o connection can vary according condition)

Communication

For communication following protocol are used

• 9 pin RS232
• EIA-485
• ETHERNET modbus
• BACnet/DFI

  Software's for plc of different manufactures

• KEYENCE PLC
• RSLinks Lite
• RSLogix 500
• STEP 7 MICROWIN
• GX DEVELOPER

 

more information download here

download link 1

download link 2

 

What is Automation?

                          To reduce the human work in production of goods & service , use of control system & information technologies called as automation.

Automation over mechanization

mechanization replaces muscular exercises of humans where as automation decreases the human sensory and mental requirement.

Advantage

1. Replacing humans in hard task and in dangerous environment.                                             

2. Perform task  beyond human capability.

3. Economy improvement.

4. Errors reduced. 

Disadvantage

1. Humans out of jobs

2. High initial cost

3. goal of automation

4. Increase production,reduce cost, with less time.

Different automation tools

• ANN-Artificial Neural technology

• DCS-Distributed Control System

• HMI-Human Machine Interface

• SCADA-Supervisory Control Data Acquisition

• PLC-Programming Logic controllers

• Robotics

• Motion control

Applications

1. Automated  video surveillance

2. Automated highway system

3. Automated manufacturing

4. home automation

5. Industrial automation