What lands on the BOM line
The ABB UXAB239399075 is catalogued as an I MODULE from ASEA BROWN BOVERI under PLCs & HMIs › PLCs and Accessories › PLCs (Programmable Logic Controllers), so the part functions as a programmable-controller accessory rather than a standalone CPU.
What the ledger actually carries
The only quantitative attribute on the spec sheet is the listed weight of 0.08 kgs, which is the kind of figure an integrator reads once and then files — it tells you the module is light enough to drop into an existing I/O slot without rebalancing the backplane, but it does not decide the buy.
Class context and peer codes
Three order codes sit adjacent in the PLCs and Accessories class: 54312181 at 0.10 kgs, 745745 at 0.08 kgs, and YM321001-AN at 0.08 kgs. No functional rating differentiates them.