DCS versus PLC Architecture
The main difference between DCS and PLC is the business model which we discussed with comparison of DCS Versus PLC
PLC Tutorials
Tutorials of Programmable Logic Controller – Learn PLC programs and ladder logic lectures of GE, ABB, Siemens, Allen Bradley, Omron PLC’s.
Difference between DCS, PLC, and RTU ?
One of the most common questions is regarding the difference between DCS and PLC as well as between PLC and
PLC Motor Control Ladder Logic Programming
Now we are discussing about How a PLC Motor Control ?. Before going into the article, let us assume some conditions
PLC Program for Star Delta Motor Starter
Motor contactors are controlled by using PLC. The following section of PLC tutorial will explain the ladder programming for star delta motor starter.
PLC Example with Switches
For example, the LED in this circuit will turn on if the liquid level rises above 14 inches and the
What is Seal-in Circuit ?
A Seal-in circuit is a method of maintaining current flow after a momentary switch has been pressed and released. What
What is Interposing Relay in a PLC System ?
Interposing Relay is the auxiliary relay which is used to isolate the two different systems / devices. This could be because they
PLC Valve Control Ladder Logic Programming
Objective : To understand the basic concept of PLC Valve Control Ladder Logic. Target Users : Students, Technicians, Freshers, Trainee
PLC Analog Input Scaling
An Allen-Bradley SLC500 programmable logic controller (PLC) uses a 16-bit analog-to-digital converter ( in its model 1746-NI4 ) in analog
Mis-conceptions of PLC Ladder Logic
Perhaps the most important yet elusive concept to grasp when learning to program PLCs is the relationship between the electrical