EDUCATION & TRAINING

Why PLC PCBs Fail in Real Factory Environments (And What Most Engineers Miss)

Dev.to Machine Learning

About This Tutorial

Breadboards and lab tests are forgiving. Factory floors are not. A PCB that works perfectly on the bench can suddenly become unstable when installed next to servo motors, VFDs, relays, or industrial equipment. In factory automation, a PCB isn't just another board - it's part of the nervous system of the entire production line. When a PLC or I/O module PCB fails, downtime isn't measured in seconds. It can stop an entire manufacturing process. Here are some common mistakes engineers underestimate: 1. Using too few layers Modern PLC and I/O boards rarely work well with simple 2-layer designs.