


Sensor level is also called as process layer. Automation equipment reduces the periodic or manual operations and establishes the automatic working conditions. In some critical applications periodic checking of the process variable is necessary to perform industrial operations. Need of Automated Industry Manual control Industrial automation involves usage of advanced control strategies like cascade controls, modern control hardware devices as PLC’s,sensors and other instruments for sensing the control variables, signal conditioning equipments to connect the signals to the control devices, drives and other significant final control devices, standalone computing systems, communication systems, alarming and HMI (Human Machine Interface) systems. In industries, control strategies use a set of technologies which are implemented to get the desired performance or output, making the automation system most essential for industries. Industrial automation is the use of various control devices like PC’s/PLC’s/DCS, used to have control on various operations of an industry without significant intervention from humans and to provide automatic control performance.
