24. Electrical Noise and Grounding in PLC Panels ( 24 of 35 )

August 15, 2026 JoeGuardian 0

In industrial automation, a PLC panel can have a perfect program and still behave incorrectly if the electrical installation has noise or grounding problems.

Electrical noise can cause problems such as:

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5. Why 4 mA Does Not Mean Zero Power

May 25, 2026 JoeGuardian 0

Understanding Live Zero and Signal Faults in 4–20 mA Loops

In industrial instrumentation, one of the most important concepts for automation technicians to understand is this:

In a 4–20 mA signal, 4 …

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