7-Best PLC simulator apps for android and their features
Introduction A PLC or programmable logic controller can be considered as a digital computer, it uses a programmable memory for the storage of instructions. So...
Category : PLC
51 PLC interview questions
1. What is PLC? Programmable logic controllers, also called programmable controllers or PLCs, are solid-state members of the computer family, using integrated circuits instead of...
PLC learning series 16: PLC Documentation
Documentation is the process of orderly collection and record of data about machines or process and about both hardware and software components of its control...
PLC Learning series 15: Applications – Level measurement
Consider a simple application of water tank level measurement application using sensors. We put one near the bottom and one near the top, as shown in...
PLC learning series 14: Ladder logic Instructions
PLC ladder logic programming language is a collection of many instruction sets. To become a programmer in ladder logic one have to know more about...
PLC learning Series 13: Counters in PLC
What is Counter? Counter is an element designed simply to count events in PLC, however, depending on the manufacturer, there may be three types of...
PLC learning series 12: Troubleshooting PLC
The PLC reads inputs, processes them, and produces outputs through a program Using a portable device, console, or personal computer, the internal operation of a...
PLC learning series 11 : How to interface PLC with SCADA?
To interface PLC with SCADA first we have to establish a proper communication channel. The monitoring PC’s communications or network port link is connected with...
PLC learning Series 10: PLC timers
What is PLC Timers? PLC timer is an element in ladder logic programming taken from electrical systems. Timers are devices that count time increments. The...
Difference between Modular PLC & Compact PLC:
What is Modular PLC? A Modular PLC consists of multiple modules such as CPUs, I/O modules, Power modules which are connected to a popular rack....