In short
A practical buying guide for Allen-Bradley Flex I/O — models, prefixes, compatibility and replacement options.
Buying guide overview
This guide walks through selecting an Allen-Bradley Flex I/O product — model lineup, catalog prefixes, software requirements, common applications, and how to choose between condition options (new, surplus, refurbished).
Visit the Flex I/O family page for the full series breakdown, compatible products and FAQs.
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