Select Page
The PLC Scan Cycle

The PLC Scan Cycle

I have seen, that over the years, this is part of PLC’s that gets left out of a lot of courses.  Too bad.  Because over those same years I have seen Scan Cycle problems cause hair loss, throwing of tools, swearing, and even the replacement of perfectly good CPUs only...
Using Status Lights to Troubleshoot.

Using Status Lights to Troubleshoot.

Troubleshooting a PLC system down to the faulty component or software issue should take no longer than 20 minutes max.  Much less, if there is an HMI and some Messaging on it.  This is because the PLC it’s self gives you so many trouble shooting tools.  The easiest...