Answer / er. kumar kamble

[1]it is microprocessor based controller with multiple



-digital i/o,-analog i/o,-timer,-counters,-memory flags,-data registers
arithmetical formulas....etc.[2]basic function is control critical electrical circuit very easy with less electrical wiring[3]PLC used in all type of automatic equipment,eg.Robotics[4]ladder diagram is one language to create programme in PLC.[5]reduce rejection in production,accuracy in products,less maintenance,less man power,easy maintanance.

Answer / ajay

PLC is the industrial computer control system that continuously monitors the input devices and makes decision base upon the custom program to control the output devices.

Ladder logic is the one type of languages which in plc's are using, In ladder logic we can make the program with combinations of inputs & outputs.

Its advantages is ,
-Improve the manufacture of products
-Total control in manufacturing
-Makes it easy to work with in Difficulty & hazardous environment.
-More reliable
-Improve quality of the products
-Save labor & energy.

Answer / suhel zaidi

PLCs are highly reliable, easily programmable,  Small and Inexpensive, PLCs can be designed with the communication capabilities so they can converse with the local or remote computer, They can sustain in robust environment  less maintenance.

Answer / abhinav

Plc is a industrial computer which is take instruction by programming and control the industrial machine

Answer / bharath

it is used in car parking appartment.
when the sensor is fixed at perticular place,then the car
parks that place then the sensor connection should be
disable.it is used to known, how many cars parks per day.
so in this method is used in car parking appartmen.

i want formula for flow control.am doing project in flow control using orifice . i know value of the flow level(Q) . upstream(p1) pressure, orifice diameter(Do) , pipe diameter(Di) and oil viscosity(Vi) how can i calculate downstream pressure

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