Industrial Automation, PLC, VFD, and Troubleshooting
When working with PLCs, it is important to understand that the controller does not “think” the same way humans do.
Humans normally use the decimal system:
0, 1, 2, 3, 4, 5, …
To understand PLC programming, you need to understand how a PLC stores information.
A PLC does not only turn inputs and outputs ON or OFF. It also stores data in memory.
That …