Monday, October 26, 2009

DEVELOPMENT OF SUMPPUMP LOGIC FOR PIPELINE AUTOMATION


PROGRAMMABLE LOGIC CONTROLLER (plc) is a digital computer used to control and monitor the field parameters with the help of programming language.“Relay ladder logic” is the basic language for plc programming.
PLC finds its major application in “PIPELINE AUTOMATION” where crude oil is transported from oil field to oil refineries and used for controlling the field devices like solenoid valves,level swtiches,pressure switches,temperature,pressure transmitters,sump pumps etc.,
Our project mainly deals with the development of PLC logic for sump
pump application. In this we decrease the pressure of the pipeline by drawing oil in to the
sump pump tank through valves and refilling it in to the pipeline through sump pump
automically when the sump tank level reaches maximum.

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