Industrial Automation, PLC, VFD, and Troubleshooting
Introduction
Sensor wiring is one of the most important parts of a reliable industrial control system.
A PLC program can be well written.The sensor can be the correct model.The machine logic can …
Read MoreRSLogix 500 and Studio 5000 Examples
In industrial PLC programming, a machine state is a numeric value that tells the program what step or condition the machine is currently in.
Instead of …
Read MoreBuilding Professional and Industrial Ladder Logic with State Machines, Subroutines, and Status Codes
In a basic PLC program, it is common to organize the logic using a simple structure:
Input BufferingMode SelectionRequestsPermissivesInterlocksCommandsFault …
Read MoreA Simple and Professional Way to Organize Ladder Logic
In industrial PLC programming, the logic should not be written randomly. A professional PLC program is usually organized in a clear sequence …
Read MoreA 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 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 MoreWhen a PLC-controlled machine stops working, the problem is not always in the ladder logic. Many times, the real issue is related to power, field wiring, sensors, output devices, I/O …
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