Industrial Automation, PLC, VFD, and Troubleshooting
Practical Guidelines for Safer, Cleaner, and More Reliable Motor Control Systems
Introduction
Industrial motor control is more than starting and stopping a motor. A reliable motor control system should be safe, organized, …
Read MoreTurning Real-World Signals Into Useful Numbers
In PLC troubleshooting and programming, not every signal is simply ON or OFF.
Many devices send a variable signal that represents a real-world measurement, such as:
TemperaturePressureLevelFlowWeightValve …
Read MoreA Practical Guide for Automation Technicians
When a machine stops working, many people quickly say:
“The PLC is not working.”
But in real industrial troubleshooting, the PLC is only one part of the …
Read MoreUsing CTU, CTD, and RES to Count Real-World Events
Counters are one of the most useful instructions in PLC programming because industrial machines are constantly counting something.
A PLC may need to …
Read MoreUnderstanding the Three Most Common PLC Timer Instructions
Timers are one of the most important instructions in PLC programming. They are used everywhere in industrial automation.
You will see timers used for:
Start-up …
Read MoreBuilding Secure OT Networks with IEC 62443 Principles
Industrial cybersecurity has become one of the most critical topics in modern automation. As Operational Technology (OT) systems continue integrating with enterprise IT …
Read MoreOne of the Most Important PLC Ladder Logic Patterns
One of the first ladder logic circuits every PLC beginner should understand is the Start/Stop seal-in circuit.
This circuit is also called a:
Start/Stop …
Read MoreHow a PLC Reads, Thinks, and Acts
One of the most important concepts for anyone learning PLCs is the PLC scan cycle.
At first, ladder logic may look like electrical wiring, but …
Read MoreSafety Should Not Depend Only on PLC Logic
In industrial automation, an Emergency Stop is one of the most important safety devices on a machine. It is not just another push …
Read MoreHow PLCs Connect to the Real World
A PLC does not control a machine by itself. It needs a way to receive signals from field devices and send commands back to …
Read More