Schneider Electric BMXDDI6402K Modicon X80 Discrete Input Module — 64 Isolated 24 V DC Inputs, Positive Logic (Current‑Sink), Dual 40‑Way Connectors, IP20

Product overview The Schneider Electric BMXDDI6402K is a Modicon X80 discrete input module offering 64 isolated, positive‑logic 24 V DC inputs. Designed for Modicon M340 and M580 PAC/PLC installations, the module provides high‑density sensing with industrial‑grade isolation and diagnostics for demanding automation, water, power and infrastructure applications.

Key specifications

• Manufacturer: Schneider Electric
• Model: BMXDDI6402K (Modicon X80 discrete input module)
• Function: Discrete isolated input module, current‑sink (positive logic)
• Number of inputs: 64 isolated channels
• Nominal input voltage: 24 V DC (sensor supply range 19…30 V)
• Discrete input current: 0.6 mA nominal
• Input impedance: 40 kΩ
• Input compatibility: 2‑wire / 3‑wire proximity sensors per IEC 60947‑5‑2 and IEC 61131‑2 Type 1
• Guaranteed logic thresholds: sensor fault < 14 V DC; sensor OK > 18 V DC
• Response time (DC): typical 4 ms; maximum 7 ms
• Paralleling of inputs: No
• Protection: 1 external 0.5 A fast‑blow fuse per group of channels; module is provided without reverse‑polarity protection (external wiring precautions required)
• Insulation / dielectric strength: 1500 V AC (primary/secondary, 1 min); 500 V DC between groups of channels (1 min); insulation resistance > 10 MΩ at 500 V DC
• Power dissipation: 4.3 W (module)
• Typical current consumption: 160 mA at 3.3 V DC
• MTBF: 510,000 hours
• Connectors / mounting: Dual 40‑way connectors; fixed on X80 rack using 2 screws; single‑slot or as specified for X80 (refer to rack layout)
• Status indicators: +32 channels indicator LED, 1 green RUN LED, 1 green LED per channel for diagnostics, red ERR and red I/O LEDs
• Mechanical / environment: net weight 0.145 kg; dimensions ~32 × 100 × 86 mm; IP20; operating ambient 0…60 °C; storage −40…85 °C; vibration 3 gn; shock 30 gn; humidity 5…95 % at 55 °C non‑condensing
• Operating altitude: 0…2000 m (2000…5000 m with derating)
• Certifications & standards: CE, UL, CSA, RCM, EAC, UKCA, Merchant Navy; complies with EN 61000‑6‑5, EN 61850‑3 and related IEC/EN standards
• Packaging: single unit package dimensions ~11.8 × 11.2 × 5.7 cm; package weight 180 g
• Warranty: 18 months (contractual)

Features & benefits

• Very high‑density 64 isolated inputs reduce panel space and wiring complexity for large I/O installations.
• Low input current (0.6 mA) and high input impedance minimize loading on sensors.
• Per‑channel diagnostics and +32 channel indicator LED speed up commissioning and troubleshooting.
• Robust dielectric ratings and isolation groups enhance noise immunity and safety in harsh industrial environments.
• Compatible with Modicon M340/M580 architectures to standardize spares and simplify maintenance.

Typical applications

• Large discrete sensing arrays in process control, water & wastewater, utilities, mining, data centers and power generation.
• Centralized or distributed I/O racks where high channel counts and reliable 24 V DC sensing are required.

Installation and service notes

• Provide external 0.5 A fast‑blow fuse per group of channels as specified. Module is supplied without reverse‑polarity protection—follow wiring and polarity precautions.
• Install inside an enclosure respecting IP20 rating; allow ventilation for thermal management.
• Verify rack compatibility and connector pinout before installation; secure module with specified screws.
• Consult the official datasheet and user guide for wiring diagrams, channel grouping, and detailed diagnostic/fault handling.

Documentation

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