What an industrial-grade managed Ethernet switch actually does, why an office switch does not fit, and how an independen...

A last-time-buy date is the only window in which factory-fresh units of a discontinued PLC, drive or HMI can be ordered ...

A retrofit BOM is not the same document as the original cabinet parts list. Here is how an independent desk walks a buye...

When a Belimo LM24A or Honeywell MS-series actuator fails on a factory HVAC loop, the buyer faces a multi-volt sourcing ...

Siemens SIMATIC S7-300 has been out of new sales for years. Here is what still arrives from the field, what the S7-1200 ...

Refurbished and used sit on different rows of a quote because bench-test record, warranty and inspection depth differ li...

A buyer question that goes wrong most often: are these two automation parts interchangeable? Here is the twelve-axis fra...

Plants run on mixed PLC generations for decades. A Red Lion protocol gateway stacked between a legacy PLC and a modern S...

Two modules from the same series, with adjacent part numbers, are not automatically interchangeable. Here is what can di...

Specifying photoelectric, inductive and laser distance sensors for a sorting conveyor — what the buyer has to pin down o...