Definition of debate for English Language Learners. : 1  to discuss (something) with people whose opinions are different from your own. : 2  to compete against (someone) in a debate : to argue against another person's opinions as part of an organized event. : 3  to think about (something) in order to decide what to do.
Problems that can be localized to a specific I/O module or even a specific input or output device are usually external, while internal problems normally result in large groups of failures, globally erratic behavior, or even total failure of the PLC system. Let's look first at the possible causes for internal problems. The first thing to check is the integrity of the PLC's power and ground. Visually inspect the power and ground wiring, looking for loose, corroded, or otherwise questionable connections. The integrity of the ground can be electrically checked by measuring the voltage between the PLC ground terminal and a known ground.
A. By far, the most important thing a sysadmin can do is patch, Patch, PATCH. This goes back to being proactive. When one has machines under his or her charge, they have to make sure that they stay on top of vendor notices of security problems.