Our award-winning columnist, Jeff Dearduff, gets back to the basics and provides a refresher course on troubleshooting in today's modern world.
The more we adapt ourselves to the new tools used in
troubleshooting modern control technology, the more we forget how to do it the
old way. Ya know, when the grumpy old relay logic board or weary wire nut acts
up? Laptops, cables and software have pushed aside the good old-fashioned,
sleeves-rolled-up, hands-on, hard-thinking style of troubleshooting. We have
become so entrenched in the PLC world that we tend to target the PLC, even when
it has nothing to do with the technological problem.