Industrial Automation, PLC, VFD, and Troubleshooting
PLC input problems are very common in industrial automation.
A machine may stop, refuse to start, stay stuck in a sequence, or show an HMI alarm because the PLC is not …
Read MoreIntroduction
In industrial automation, the PLC does not physically “see” the machine, conveyor, door, bottle, box, valve, or actuator. The PLC depends on sensors to know what is happening in the …
Read MoreIntroduction
A limit switch is one of the most common and important feedback devices used in industrial machines.
Unlike photoelectric, inductive, capacitive, or ultrasonic sensors, a limit switch normally requires physical contact …
Read More