Industrial control system- plc

the plc(programmable logic control) is most common programming language used in industrial automation.......here one example is given -PLC: Industrial application
in oil degumming and refining.........i hope it will help you to understand industrial automation.
 


for full tutorial of.Purifine® PLC: Industrial application in oil degumming and refining  click on below link.
http://www.iomsa.org/leads/OMGsep09.pdf