The 6AG1591-1BB00-2AA0: Same part, different passport: this is the ruggedized variant of the standard 6ES7591-1BB00-0AA0. The coating and wider temperature range are the only differences—pinout, mechanical fit, and electrical interface are identical to the base module.
Temperature and orientation
Rated ambient temperature covers -40 °C to +70 °C in horizontal installation, but the display is switched off above 50 °C in that orientation. In vertical installation, the max ambient drops to 40 °C and the display is switched off at that point. Below 40 °C vertical, the display operates normally. The lower limit -40 °C applies to both orientations and includes condensation/frost exposure. Altitude derating applies above 2 000 m: at 3 500 m, Tmax reduces by 10 K; at 5 000 m, by 20 K. Manual restrictions apply above 2 000 m. The module is rated for installation altitudes up to 5 000 m.
Sourcing takeaway
Active lifecycle, standard lead time applies. No last-time-buy notice or NRND flag on this MPN. For a BOM freeze or a line-down swap, this part is a straightforward order against the manufacturer’s current portfolio. The base module 6ES7591-1BB00-0AA0 is also available if the coating and wider temperature are not needed, but fit is identical—same part, different passport.