Two-channel input for ET 200SP
The 6ES7131-4BB00-0AB0: Two-channel 24 V DC input module for the ET 200SP distributed I/O system. Parameterizable input delays (0.1 / 0.5 / 3 / 15 ms) let you tailor debounce to the application — fast for encoder signals, slower for contact-closure buttons. Electronic short-circuit protection on the sensor supply eliminates the need for per-channel fuses. Each input draws 8 mA typical at signal "1" and accepts 2-wire sensors with a quiescent current up to 1.5 mA. Hardware interrupts are parameterizable, so you can trigger high-priority OB routines on rising or falling edges.
Commissioning and mounting
Occupies 1 byte address space; two input bits map to physical channels. Diagnostics readable, group error LED (SF red). Isolation between channels and backplane bus. Electronic short-circuit protection. Fits 15 mm slice, depth 52 mm, power loss 0.4 W. Cable lengths: shielded 1 000 m, unshielded 600 m.