Schneider Electric BMXDDM16022 Modicon X80 8 DI/8 DO 24V DC Discrete I/O Module

The Schneider Electric BMXDDM16022 is a Modicon X80 discrete mixed I/O module offering 8 transistor inputs and 8 transistor outputs at 24 V DC. It plugs into Modicon M340 and M580 PAC racks, switching up to 0.625 A per output channel (5 A per module) with an IP20 enclosure and a 450,000-hour MTBF rating.

Technical Specifications

Certifications & Standards

• RCM
• CSA
• EAC
• CE
• UL
• EN 61131-2
• EN 61000-6-4
• EN 61000-6-2
• EN 61010-2-201

Selection Notes

Choose the BMXDDM16022 when a rack slot needs 8 discrete inputs and 8 transistor outputs rather than the 16-channel variant — its 5 A per-module output budget and 0.625 A per-channel rating cover small valve banks or indicator groups without using I/O capacity meant for larger nodes. The reverse-mounted diode on both input and output stages protects the module against wiring-polarity errors during commissioning, a practical detail when swapping modules across M340 and M580 racks. The module's voltage-detection thresholds — below 14 V DC flags a sensor or pre-actuator fault, above 18 V DC confirms OK — let the PAC diagnose a broken input wire or a blown output fuse without extra wiring, and the 0.5 A external fast-blow fuse specified per input group protects the module itself from field-side short circuits.