Siemens 6ES7131-6BF01-0BA0 SIMATIC ET 200SP DI 8x24VDC ST Remote I/O Module

The Siemens 6ES7131-6BF01-0BA0 is a SIMATIC ET 200SP digital input module with 8 sink-type (PNP) 24V DC inputs conforming to IEC 61131 type 3, fitted to BU type A0 with color code CC01. It provides module-wide diagnostics for wire break, short-circuit of the sensor supply, and supply voltage monitoring, with an input delay parameterizable from 0.05 to 20 ms.

Technical Specifications

Selection Notes

The type 3 (IEC 61131) sink input characteristic reads PNP sensors that source the signal into the input, the common wiring convention for 24V DC proximity and photoelectric sensors on this platform. The onboard encoder supply delivers up to 700 mA across the 8 channels, so each channel can feed a standard sensor directly from the module without a separate 24V feeder, and the short-circuit protection on that supply keeps a shorted sensor cable from taking down the rest of the ET 200SP station. Because the input delay is parameterizable from 0.05 ms up to 20 ms in TIA Portal, the same module serves both fast pulse-counting inputs and vibration-heavy field wiring by dialing in a longer filter time per channel group.

Applications

Standard digital input for ET 200SP stations reading 24V DC sink-wired sensors and switches in machine and process automation: inductive/photoelectric proximity sensors, mechanical limit switches, and pushbuttons wired PNP where IEC 61131 type 3 threshold levels apply.