What term is used to describe a PLC where all essential sections are housed in one unit?

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Multiple Choice

What term is used to describe a PLC where all essential sections are housed in one unit?

Explanation:
Stand-alone describes a PLC that is a self-contained unit, with the CPU, I/O, and power supply all housed in one enclosure. This means the controller can operate independently without needing a separate rack or backplane. The other architectures involve multiple parts or locations: rack-based uses a chassis with modules on a backplane; modular adds or swaps modules but is still more than a single unit; distributed places control across multiple controllers. Since all essential sections are integrated into one unit, the stand-alone configuration is the correct description.

Stand-alone describes a PLC that is a self-contained unit, with the CPU, I/O, and power supply all housed in one enclosure. This means the controller can operate independently without needing a separate rack or backplane. The other architectures involve multiple parts or locations: rack-based uses a chassis with modules on a backplane; modular adds or swaps modules but is still more than a single unit; distributed places control across multiple controllers. Since all essential sections are integrated into one unit, the stand-alone configuration is the correct description.

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