Siemens 6ES7131-6BF00-0CA0 SIMATIC ET 200SP DI 8x24VDC HF Remote I/O Module

The Siemens 6ES7131-6BF00-0CA0 is a SIMATIC ET 200SP digital input module, DI 8x24VDC HF (High Feature), with 8 sink-type (PNP) inputs per IEC 61131 type 3, channel-by-channel wire-break and short-circuit diagnostics, and isochronous mode down to a 250 microsecond bus cycle. It mounts on BaseUnit type A0 with color code CC01.

Technical Specifications

Selection Notes

The HF (High Feature) designation is the reason to pick this module over a Standard-Feature 8-input variant: it adds channel-by-channel wire-break and short-circuit diagnostics plus encoder-supply monitoring, so a fault is isolated to one specific sensor input rather than the whole module. Isochronous mode with a 250 microsecond minimum bus cycle time matters when digital inputs need to be time-synchronized with motion or drive control on the same PROFINET segment; standard cyclic I/O does not need this. Sink input wiring (P-reading, PNP sensors) must match the field sensors used; a sourcing (NPN) sensor will not read correctly on this module. BaseUnit type A0 must be ordered separately and matches 1, 2, 3, or 4-wire connection variants depending on whether AUX terminals or a potential distributor module are added.

Applications

Digital sensor and limit switch inputs on a SIMATIC ET 200SP distributed I/O station where individual-channel wire-break or short-circuit diagnostics are needed for fault isolation, including inputs synchronized to motion control via isochronous PROFINET.