The Omron NS12-TS01B-V1 is a 12.1-inch TFT programmable terminal (HMI) from the NS-series, with an 800 × 600 pixel resolution. It runs on a 24 VDC supply and draws 25 W max. The black case houses the display and the back-end processor that communicates with the PLC over the NS-series protocol.
The 12.1-inch diagonal and 800 × 600 resolution define the usable display area and the level of detail you can show — adequate for machine status screens, alarm lists, and basic trending, but not for dense CAD-like graphics. The 24 VDC supply is standard for industrial control panels; the 25 W max draw means a 24 VDC power supply with at least 30 W capacity covers it with headroom for the backlight. The black case is cosmetic but matters if panel aesthetics or a legacy color scheme requires it.