Siemens 6ES7131-6TF00-0CA0 SIMATIC ET 200SP DI 8x NAMUR HF Remote I/O Module

The Siemens 6ES7131-6TF00-0CA0 is a SIMATIC ET 200SP digital input module with 8 NAMUR inputs to EN 60947, supporting both standard DI mode and a built-in 4-channel counter mode up to 5kHz with 32-bit counting width. It mounts on BaseUnit type A0, draws up to 70mA, and provides channel-by-channel wire-break and short-circuit diagnostics.

Technical Specifications

Selection Notes

Configured as a counter, one of the four available counter channels reads up to 5kHz with 32-bit width, which covers most NAMUR proximity-sensor flow or speed pickups without an extra high-speed counting module; configured as plain DI it behaves like a standard 8-channel NAMUR input with per-channel wire-break and short-circuit diagnostics. NAMUR wiring draws its own 8.2V, current-limited supply from the module (max 8mA/channel), so it directly reads two-wire NAMUR sensors to EN 60947 without external barriers on non-hazardous installations. Pick the Ex-rated ET 200iSP NAMUR module instead when the sensors sit inside a classified hazardous area, since this BaseUnit A0 version is not itself Ex-certified.

Applications

Used for flow, level, or speed sensing where two-wire NAMUR proximity sensors to EN 60947 are already standard - process skids, pump stations - and where the same module can double as a counter input for flow totalizing.