process control

Standard Process Signals for Industrial Instrumentation

Industrial measurement and control processes employ standard process signals that are used throughout all the industries. For instance, one of…

1 week ago

The USB-6009 Data Acquisition Card Features

The USB-6009 is a small external data acquisition and control device manufactured by National Instruments that is normally connected to…

3 weeks ago

How X-Y Tables are used in Position Control Applications

X-Y tables are utilized as components in many systems where reprogrammable position control is desired. The X-Y table is two…

4 weeks ago

Basic Facts about 4-20 mA current loop in Process Instrumentation

The 4-20 mA current loop, like the one shown in the diagram below is a typical way of transmitting sensor…

2 months ago

Optothyristors: Features & Principle of Operation

Silicon Controlled Rectifiers (SCRs), Triacs and other solid-state devices used for switching larger voltages and currents ON and OFF are…

6 months ago

PFDs vs. P&IDs

Process Flow Diagrams (PFDs) defines the major elements of the process schematically i.e. the interconnections of process vessels, pipes and…

6 months ago

Process Instrumentation Diagnostics & Communication Interfaces

There are various technologies that are available that help plant automation personnel to obtain diagnostic data which inform the type…

6 months ago

What is Optimal Control?

Optimal control is whereby the requirements are formulated as either the minimization of a cost index or the maximization of…

7 months ago

Pneumatic Signal Transmission System

Signal transmission in process instrumentation and control systems is largely done via electrical transmission but there are a few areas…

7 months ago

How Redundancy is Achieved in Process Plants

In similar way to electronic systems, redundancy is extensively employed technique for enhancing the reliability of many industrial plants and…

7 months ago