# S7-300 DI Sensor Wiring ## Description 24 V DC field sensor wiring diagram for Siemens S7-300 SM321 DI 16xDC24V inputs, recreated from the provided reference image with +24 V/0 V rails and I0.0–I0.7 signal mapping. ## Project Details - **Owner:** boriscapkovic - **Created:** 5/31/2026 - **Last Updated:** 5/31/2026 - **Visibility:** Public *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/boriscapkovic/s7-300-di-sensor-wiring~yq](https://www.flux.ai/boriscapkovic/s7-300-di-sensor-wiring~yq).* --- *Generated from [https://www.flux.ai/boriscapkovic/s7-300-di-sensor-wiring~yq](https://www.flux.ai/boriscapkovic/s7-300-di-sensor-wiring~yq)*