Jul 13
Random PLC Inputs Can Cost More Than You Think
Many unexpected machine stoppages begin with PLC False Inputs. A digital input may suddenly switch ON even though no sensor has actually changed state. In most cases, the PLC isn't malfunctioning—it's reacting to electrical noise, poor grounding, damaged wiring, voltage spikes, or faulty field devices.
Understanding the real cause of false input signals helps maintenance teams reduce downtime, improve system reliability, and avoid unnecessary component replacement. A systematic troubleshooting approach can quickly identify the root cause and keep your automation system operating safely and efficiently.
