Schneider Electric BMXDDI3202K Modicon X80 Discrete Input Module — 32 Isolated 24 V DC Inputs, Positive Logic (Current‑Sink), 40‑Way Connector, IP20

The Schneider Electric BMXDDI3202K is a Modicon X80 discrete input module providing 32 isolated, positive‑logic DC inputs for industrial PLC/PAC racks. Designed for compact rack installations and TeSys Quickfit mounting compatibility, the module uses a 40‑way connector and delivers reliable 24 V DC sensing for proximity sensors and other field devices.

Key specifications

• Manufacturer: Schneider Electric
• Model: BMXDDI3202K (Modicon X80 discrete input module)
• Function: Discrete isolated input module, current‑sink (positive logic)
• Number of inputs: 32 isolated channels
• Nominal input voltage: 24 V DC (sensor supply range 19…30 V)
• Discrete input current: 2.5 mA nominal
• Guaranteed logic thresholds: State 1 (ON) ≥ 2 mA; State 0 (OFF) ≤ 0.5 mA
• Input impedance: 9.6 kΩ
• Input compatibility: 2‑wire / 3‑wire proximity sensors per IEC 60947‑5‑2 and IEC 61131‑2 Type 1
• Response time: typical 4 ms; maximum 7 ms (DC)
• Sensor fault detection: voltage detection threshold < 14 V = sensor fault; > 18 V = sensor OK
• Protection guidance: 0.5 A fast‑blow external fuse per group of channels; reverse‑polarity protection integrated
• Isolation & dielectric: 1500 V AC (primary/secondary, 1 min); 500 V DC between groups (1 min); inputs isolated per group
• Power dissipation: 3.9 W (module)
• Typical current consumption: 121 mA at 3.3 V DC
• MTBF: 905,000 hours
• Mechanical / environment: single X80 rack slot; 40‑way connector; IP20; net weight 0.112 kg; operating ambient 0…60 °C; storage −40…85 °C; vibration 3 gn; shock 30 gn; humidity 5…95 % non‑condensing
• Operating altitude: 0…2000 m (2000…5000 m with derating)
• LEDs / diagnostics: 1 green RUN LED; 1 green LED per channel for channel diagnostic; red ERR and red I/O LEDs
• Packaging: single unit dimensions 11.5 × 11.0 × 5.2 cm; package weight 143 g
• Certifications & directives: IEC/EN 61131‑2 compliance; 2014/35/EU and 2014/30/EU directives; other approvals as stated by Schneider Electric
• Warranty: 18 months (contractual)

Features & benefits

• High‑density 32 isolated inputs provide compact field sensing for machinery and process control.
• Positive logic (current‑sink) compatible with standard 2‑/3‑wire proximity sensors and PLC wiring conventions.
• Per‑channel diagnostics via LEDs and sensor fault detection simplify commissioning and troubleshooting.
• Robust isolation and dielectric ratings improve noise immunity and safety in industrial environments.
• TeSys Quickfit and 40‑way connector compatibility enable fast installation and maintenance.

Applications

• Discrete sensing for machine control, conveyor systems, packaging, water treatment, and general industrial automation.
• Integration into Modicon X80 racks for centralized or distributed input requirements where 24 V DC sensor networks are used.

Installation and service notes

• Provide 0.5 A fast‑blow external fuse per group of channels as recommended.
• Observe sensor supply range (19…30 V) and ensure wiring follows Schneider Electric grounding and EMC guidance.
• Install module inside appropriate IP‑rated enclosure consistent with IP20 electronics.
• Consult Schneider Electric product datasheet and user guide for detailed wiring diagrams, group assignments, and fault handling.

Documentation

• Product datasheet, user guide, instruction sheet, CAD and environmental disclosure available from Schneider Electric support portal.