Industrial Automation, PLC, VFD, and Troubleshooting
A Critical Difference Every PLC Technician Should Understand
In industrial automation, two words are often used together but do not mean exactly the same thing:
Permissive and Interlock
Both are used to control …
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 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 …
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