PLC

 PLC is a programmable logical controller which controls various operations from it. It is very useful in Industries, plants and multi process works. We can control various operations by a computer which allows us to work efficient. There are different plc companies in market like Schneider, Allen Bradley etc.

we can operate it with its language programs like
  
 • A graphic language, Ladder language for transcribing relay diagrams, is especially
suitable for combination processing and offers basic graphic elements, that is,
contacts and coils. Numeric calculations can be written within operation blocks.
• A Boolean language, Instruction list language, is a "machine" language for writing
logical and numerical processing operation.

This language includes predefined function blocks (timers, counters, etc), which can be
supplemented by dedicated applications (analog, communication, counter, etc) and
specific functions (time management, character strings, etc).

This is general description about  plc.You can get more updates daily in my blog.

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