In many process control systems, microprocessor based programmable logic controllers are used for decision making due to the sophistication of…
Ethernet plays an important role as a communication platform for automation systems. The Key strength of Ethernet is in its…
Controller Area Network (CAN) is a serial communication protocol developed primarily for applications in the automotive industry. It is also…
Foundation fieldbus (FF) is an all-digital, serial, two-way communication system for industrial applications. Foundation fieldbus specifications include two different configurations:…
Topology is an important property of fieldbus. It is employed in the selection and definition of the best and suitable…
In direct digital control (DDC) a single computer is able to carry out PID control for multiple loops at the…
Feedforward control is based on principle of pre-emptive load counter-action i.e. if all major loads (i.e. disturbances) on a process…
We know very well that closed loop control provides increased performance over open loop control. So it would be rational…
The ladder diagrams are universally used as a symbolic and schematic way to represent the interconnection between the elements in…
In distributed control system, each process has its own separate controller located at the site. These local controllers are interconnected…
