Final project

For the final project, let’s assume the following scenario.

You were recently contacted by a customer about a machine with broken software. The machine will boot up and run as expected for about 25 minutes, then unexpectedly shut down. The customer says the issues started about two days ago and is sure that the software broke unexpectedly.

With that, let’s look at how we can troubleshoot this.

Troubleshooting

First, since the machine has been running as expected for at least 25 minutes and the system has just started behaving this way, we can assume that the software is not broken. There could technically be an issue with the PLC’s operating software such as the operating system, or the user is doing something that the machine wasn’t intended for and programmed it to do something out of its bounds. However, that whole scenario is unlikely. Based on what we learned, this sounds like there is an issue with the PLC overheating or with...