Analog data is stored in memory as a word, with addressing examples such as I:2.0 or O:2.0. What does this imply about the data type?

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Multiple Choice

Analog data is stored in memory as a word, with addressing examples such as I:2.0 or O:2.0. What does this imply about the data type?

Explanation:
Analog values need multiple bits to represent a range, so PLC memory uses a word as the basic storage unit for such data. The addresses like I:2.0 or O:2.0 show a word at address I:2 or O:2, with the .0 (and similar suffixes) indicating a specific bit inside that word. In other words, the data is stored as a 16-bit word, and you can access individual bits within that word if needed. This is why word-oriented addressing best fits analog data: the fundamental data type is a WORD (16-bit), not a single bit, a byte, or a string.

Analog values need multiple bits to represent a range, so PLC memory uses a word as the basic storage unit for such data. The addresses like I:2.0 or O:2.0 show a word at address I:2 or O:2, with the .0 (and similar suffixes) indicating a specific bit inside that word. In other words, the data is stored as a 16-bit word, and you can access individual bits within that word if needed. This is why word-oriented addressing best fits analog data: the fundamental data type is a WORD (16-bit), not a single bit, a byte, or a string.

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