The E2E-X23B1T30 2M: Omron's E2E NEXT series – this is a shielded M30 inductive proximity sensor with a 23 mm sensing range, PNP normally open output, and a 2-meter PVC cable. The IO-Link interface runs at 230.4 kbps, giving you diagnostic feedback like temperature and detection count. That is the kind of data you want when a sensor goes flaky out here in the grease.
Don't reach for the E2E-X2D1-M3G thinking it'll swap in – that's a 2 mm sensing range, 2-wire DC, with an M8 connector. This E2E-X23B1T30 is a 23 mm shielded PNP 3-wire with a 2 m pigtail and IO-Link. Totally different wiring and mounting. Stick with this part if your machine calls for 23 mm range and diagnostic data.
Shielded means you can mount it flush in a steel block – no dead zone on the sides. The M30 body fits common tapped holes. The 2-meter PVC cable is oil-resistant enough for most machine-tool environments. Wire it 3-wire PNP to a standard digital input card or IO-Link master.