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PLC

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S7-300
PLC

PID

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Abstract

Nowadays intelligent measuring appliance is improving more and more has
been used in more an more place of our can make Electric circuit much easier than
the control can be realized much more precise and convenient.
Microelectronics puter technology continues to develop, led to fundamental
changes in the structure of instruments to puter (single chip) as the main body,
puter technology and anic integration of detection technology to form a new
generation of "smart meters" in Measurement of process automation, measurement data
processing and functional diversification of the traditional instrument, compared to
conventional measuring circuit, tremendous progress has been made.
PLC is a very useful control installment . It is widely used in a lot of control system in
ourlives. It is the product of puter,munication can make
Electric circuit much easier than the control can be realized much more precise
and very suits the control of water level. It will relay