Siemens 6AG1131-6BF60-7AA0 is an S7-1200 digital input module — 8 channels, 24 V DC sourcing inputs with diagnostic alarm and group error reporting. It occupies 15 mm on the DIN rail and draws 1.5 W typ from the backplane.
Key features for fit
All eight inputs are sourcing (PNP), with a signal '1' typical draw of 6 mA. The input characteristics define signal '0' at 30 V to -5 V (relative to L+) and signal '1' at -11 V to -30 V, so it expects a sourcing 24 V DC sensor output common-negative. No wire-break or short-circuit detection per channel, but a module diagnostic alarm and group error are supported. Diagnostics include a green LED per channel for status and a green/red DIAG LED for module health. I&M data (I&M0 to I&M3) and firmware update capability are on board. No isochronous mode, no hardware interrupt, no oversampling—it's a straightforward digital input slice.