The 6AG1222-1BH32-4XB0: Sixteen digital outputs, 0.5 A each, 24 V DC. Diagnostics built in — short-circuit and wire-break monitoring. Backplane bus draws 140 mA at 5 V DC. Requires a front connector (ordered separately). This is the SIPLUS extreme variant, rated for -40 to 70 °C ambient. Same footprint as the standard -2XB0 but with the wider thermal range.
Compared to the standard -2XB0
The -4XB0 shares the same dimensions (100 x 45 x 75 mm) and electrical ratings (16×0.5 A), but adds the -40 to 70 °C ambient range.