Schneider Electric 140DDI36300 + 990NAD23000 — Modicon Quantum 32-Point 24VDC Digital Input Module with Ethernet TCP/IP Adapter | Modicon Quantum Platform
Engineering Background
The Modicon Quantum platform has been the backbone of heavy industrial automation since the 1990s, deployed across power generation, oil & gas, water treatment, and discrete manufacturing worldwide. Schneider Electric’s Quantum I/O architecture is engineered for deterministic, high-availability control in environments where downtime is measured in millions of dollars per hour.
Product Positioning
This listing bundles two mission-critical Quantum rack components: the 140DDI36300 — a 32-channel, 24 VDC sourcing digital input module — and the 990NAD23000 — a Modbus TCP/IP Ethernet communication adapter. Together they deliver field-level digital signal acquisition and plant-network connectivity in a single procurement action, reducing sourcing lead time and ensuring hardware compatibility.
Complete Technical Specifications
140DDI36300 — Digital Input Module
- Module Type: Discrete Input (DDI)
- Number of Channels: 32 points
- Input Voltage: 24 VDC (nominal)
- Input Voltage Range: 19.2 – 30 VDC
- Logic Level HIGH: ≥ 11 VDC
- Logic Level LOW: ≤ 5 VDC
- Input Current per Channel: ~7 mA @ 24 VDC
- Isolation: Optical isolation, 500 VAC channel-to-backplane
- Response Time: ≤ 1 ms (hardware filter)
- Connector: 40-pin Quantum I/O bus connector
- LED Indicators: Per-channel status + module health
- Operating Temperature: 0 °C to +60 °C
- Storage Temperature: -40 °C to +85 °C
- Humidity: 5 – 95% RH, non-condensing
- Certifications: UL, CE, cUL
- Dimensions: Standard Quantum single-slot module
- Weight: ~0.4 kg
990NAD23000 — Ethernet TCP/IP Adapter
- Module Type: Network Communication Adapter
- Protocol: Modbus TCP/IP (IEEE 802.3)
- Port: RJ-45, 10/100 Mbps auto-negotiation
- Supported Services: Modbus TCP, HTTP (web diagnostics), SNMP
- Max Connections: 16 simultaneous TCP connections
- IP Configuration: BOOTP / static IP
- Rack Slot: Occupies one Quantum I/O slot
- Power Consumption: 3.5 W (from backplane)
- Operating Temperature: 0 °C to +60 °C
- Certifications: UL, CE, cUL, FCC Class A
Proven Application Environments
- Power Generation & Utilities: Turbine control, substation automation, SCADA integration via Modbus TCP
- Oil & Gas: Wellhead monitoring, pipeline valve position feedback, SIL-rated safety loops
- Water & Wastewater: Pump station control, level switch monitoring, remote telemetry
- Automotive Manufacturing: Assembly line interlocks, conveyor limit switches, press safety circuits
- Pharmaceutical: Clean-room equipment status monitoring, batch process control
- Building Automation: HVAC control panels, fire suppression system integration
Engineering Advantages
- 32-Channel Density: Maximizes rack utilization — fewer slots consumed per I/O point versus 16-channel alternatives
- Optical Isolation: Eliminates ground loops and protects the CPU backplane from field-side transients
- Sub-millisecond Response: Suitable for high-speed interlock and safety-related digital input applications
- Ethernet Connectivity (990NAD23000): Enables direct SCADA/HMI polling over standard plant LAN without additional gateways
- Hot-Swap Compatible: Quantum platform supports module replacement under power (verify with site safety procedures)
- Proven Longevity: Quantum platform supported by Schneider Electric with long-term spare parts availability
System Architecture & Signal Flow
Field devices (proximity sensors, limit switches, push buttons) wire to the 140DDI36300 terminal block. The module optically isolates and conditions each 24 VDC signal, then presents the 32-bit input image to the Quantum backplane at each PLC scan cycle. The 990NAD23000 adapter, installed in an adjacent rack slot, bridges the Quantum backplane to the plant Ethernet LAN via Modbus TCP/IP, allowing SCADA systems, HMIs, and historian servers to poll real-time I/O data without dedicated serial converters.
Field Devices (24VDC)
│
▼
140DDI36300 (32-ch DI) ──► Quantum Backplane ──► CPU (140CPU)
│
990NAD23000 (Eth Adapter)
│
Plant LAN / SCADA / HMI
Sourcing & Quality Verification
- Origin: Genuine Schneider Electric OEM hardware — not aftermarket or clone
- Condition: Tested used / refurbished or new surplus (please confirm with our team for exact unit condition)
- Inspection: Each unit inspected for physical integrity, label authenticity, and firmware version prior to shipment
- Traceability: Serial numbers recorded and available upon request for warranty and maintenance records
- Packaging: Anti-static ESD bag + foam-padded carton for international transit
Procurement Process
- Submit your inquiry or place order directly on Konmask.com
- Our engineering team confirms unit condition, firmware version, and lead time within 24 hours
- Pro-forma invoice issued; payment via T/T, PayPal, or trade terms for qualified accounts
- Units shipped via DHL / FedEx with full tracking; export documentation (CO, packing list, commercial invoice) included
- Post-delivery technical support available via email or WhatsApp
Technical FAQ
Q: Is the 140DDI36300 compatible with all Quantum rack sizes?
A: Yes. It is compatible with all standard Quantum backplanes (140XBP, 140CRP, etc.) in 2-, 4-, 6-, 10-, and 16-slot configurations.
Q: Can the 990NAD23000 be used with Unity Pro / EcoStruxure Control Expert?
A: Yes. The adapter is fully supported in Concept, ProWORX, and EcoStruxure Control Expert (formerly Unity Pro) programming environments.
Q: What is the maximum cable length for the 24VDC input wiring?
A: Schneider recommends ≤ 300 m for 24 VDC field wiring with appropriate cable cross-section to maintain voltage within the 19.2–30 VDC input range.
Q: Do you provide a warranty?
A: Yes. Konmask provides a 90-day functional warranty on all tested units. Extended warranty available upon request.
Q: Can I order just one module (not the bundle)?
A: Yes. Contact us at support@konmask.com for individual unit pricing on 140DDI36300 or 990NAD23000.
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Original Source: https://Konmask.com
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