Abstract
PLC is microelectronics technology and automatic
control techniques, it's very extensive, can easily be
directly used in machinery manufacturing, metallurgy,
chemical industry, electric power, transportation, mining,
building materials, light achievement, environmental
protection, food, and other industries. Can be used to both
the renovation of the old equipment, also can used for the
development of new products and mechanical and
electrical integration. This paper makes a study of the PLC
in oil circulating the automatic control system application,
realize oil circulation system automatic control function.
Keywords: PLC, automatic control, automatic control
system on oil ring
