Common hardware issues
It is not usual to have to constantly change parts in a machine. Again, this stems back to the high usage of most PLC-based equipment, which causes wear and tear. In this section, we’re going to explore some basic symptoms of faulty hardware. To begin this exploration, we’re going to look at power issues.
Exploring power supply issues
As logic dictates, all PLCs and by extension, hardware in general, require a stable voltage of some kind. In the United States, most PLC-based equipment will draw power from a wall outlet or a high-voltage power drop of some kind. Typically, most PLC equipment will require a large power supply that is usually around 480 volts alternating current (AC). In other countries, this may vary depending on the local infrastructure, especially in places such as Europe where direct current (DC) power supplies are the norm. However, if you’re in a place that utilizes AC power supplies, there will be a need for AC...
