The 6ES7141-6BG00-0AB0 is an 8-channel digital input module from the SIMATIC ET 200eco PN family. It provides 8 Type 3 inputs per IEC 61131 with individual M12 connectors, one per channel, for straightforward one-to-one field wiring. The IP65/66/67 zinc die-cast housing mounts directly on the machine, eliminating the need for control cabinet space.

How does one-M12-per-channel wiring differ from the 16DI variant?

Unlike the 16DI module (6ES7141-6BH00-0AB0) which uses duplicate M12 assignment with two channels per connector, the 8DI variant dedicates one M12 port to each input channel. Each connector provides signal, 24V encoder supply, and ground pins, making wiring simple to trace and troubleshoot. The tradeoff: eight M12 connectors for eight inputs versus eight connectors for sixteen inputs on the 16DI module.

Encoder supply for sensor power

Each M12 port provides a 24V DC encoder supply output at 100mA, short-circuit protected in channel groups. This powers connected 3-wire and 4-wire sensors directly from the module without separate power distribution. For 2-wire sensors, verify that the sensor off-state leakage current stays below the 1.5mA maximum quiescent current limit.

Lifecycle and migration

This product entered phase-out (PM400) on October 1, 2024, and remains orderable while stocks last. The recommended successor is the M12-L generation 6ES7141-6BG00-0BB0, which adds MultiFieldbus support, configurable input filtering, and isochronous mode while retaining the same M12 connector layout and mounting dimensions for a straightforward migration path.

Frequently Asked Questions

Can I connect both PNP and NPN sensors?

This module is designed for PNP (sourcing) sensors with sink input logic per the Type 3 characteristic. For NPN sensors, an external pull-up resistor or signal converter is required.

What is the difference between this module and the 16DI variant 6ES7141-6BH00-0AB0?

Both share the same 60mm-wide zinc housing and PROFINET interface. The 6BG00 provides 8 inputs with individual M12 connectors; the 6BH00 provides 16 inputs through 8 M12 connectors with duplicate pin assignment. Power consumption is lower on the 8DI variant.