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32. PLC Safety Basics: E-Stops, Guard Doors, Light Curtains, and Safety Relays ( 32 of 35 )


August 15, 2026 JoeGuardian 0

PLC Safety Basics

In industrial automation, safety is not just another PLC input.

Safety devices are used to protect people from hazardous machine motion, stored energy, electrical hazards, pneumatic movement, hydraulic force, …

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Why Hardwired E-Stops Matter


May 7, 2026 JoeGuardian 0

Safety 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 …

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