Product Overview
The 140DDI36400 is a high-density 96-channel discrete input module for the Modicon Quantum automation platform. It processes 24 V DC sink logic signals from field devices across 6 isolated channel groups. Engineers use this module to monitor extensive digital field states within a single slot footprint. It delivers fast signal conversion and robust isolation for demanding industrial environments.
Technical Data
| Brand | Schneider Electric |
| Model Number | 140DDI36400 |
| Product Series | Modicon Quantum |
| Input Type & Signal | 96 Discrete Inputs (Positive Sink Logic) |
| Nominal Voltage Range | 24 V DC (19.2 to 30 V DC limits) |
| Voltage Thresholds | State 1: 15 to 30 V DC | State 0: 0 to 5 V DC |
| Current Thresholds | State 1: >= 2.5 mA | State 0: <= 0.7 mA |
| Input Impedance | 6700 Ohm |
| Maximum Voltage Rating | 30 V continuous, 50 V decaying pulse |
| Frequency & Response Time | Off-to-On: <= 2 ms | On-to-Off: <= 3 ms |
| Linearity & Resolution | 6 words addressing requirement across 6 groups |
| Operating Temperature Range | 32 to 140 °F (0 to 60 °C) |
| Storage Temperature Range | -40 to 185 °F (-40 to 85 °C) |
| Environmental Tolerance | 95% relative humidity non-condensing, altitude <= 5000 m |
| Noise & Immunity Limits | ESD: 4 kV contact / 8 kV air (IEC 801-2) | Radiated: 10 V/m (IEC 801-3) |
| Group Isolation | 500 Vrms for 1 minute |
| Power Dissipation & Bus Current | 1.35 W + (0.13 W x active points) | Bus current: 270 mA |
| Module Weight & Dimensions | 0.3 kg (0.7 lb) | Package: 16.3 x 4.5 x 31.2 cm |
Diagnostic Capabilities
The front panel of the 140DDI36400 provides immediate status feedback through status light displays.
- 1 green Active LED shows bus communication presence.
- 1 red Fault LED flags external system errors.
- 96 green LEDs indicate real-time signal activity for individual input channels.
Installation, Debugging, and Maintenance
This standard format module mounts into any standard Modicon Quantum backplane rack without complex tools. Field technicians wire 16 channels per group across the 6 isolated blocks. The quick response time speeds up signal loop testing during commissioning. LED status indicators allow immediate troubleshooting of field switch transitions without additional meters.
System Compatibility
The module integrates into existing Modicon Quantum controller architectures. It maps using standard 6-word memory structures in rack configurations.
Compliance and Certifications
This equipment meets tough industrial safety and emission rules worldwide.
- UL 508 and CSA C22.2 No 142 industrial control safety standards.
- FM Class 1 Division 2 certification for hazardous locations.
- CE marking and C-tick registration.
Typical Application Scenarios
The 140DDI36400 handles high-density digital signal collection in large automation plants.
- Monitoring limit switches on long conveyor systems.
- Collecting push-button inputs on major control panels.
- Tracking position sensors in water treatment plants.
- Reading interlock contacts in power generation facilities.
Package Contents, Logistics, and Warranty
Each unit ships in protective static-shield packaging weighing 520 grams.
- 1 x original 140DDI36400 discrete input module unit.
- Fast global express dispatch via FedEx, UPS, and DHL.
- Full 12-month replacement warranty coverage included.
Why Buy From Oiltech Controls?
Oiltech Controls supplies verified spare parts for industrial automation systems worldwide.
- Over 15 years of technical automation spare parts experience.
- Global shipment support with fast courier handling.
- Fully tested surplus and high-quality refurbished stock options.
- Every unit includes a 12-month warranty period.
- Rigorous technical engineering verification before every shipment.
- Dedicated supply support for legacy and obsolete control platforms.
Contact our sales team for pricing and availability:
Email: info@oiltechcontrols.com
Phone / WhatsApp: +86 158 8020 0923
User Manual Download
Need wiring diagrams, bus mapping details, or rack load charts? Contact our support team via email to get the official PDF user manual for your 140DDI36400 module today.
Frequently Asked Questions
Q: What is the input logic configuration of the 140DDI36400?
A: The module uses positive sink logic for all 96 discrete input channels.
Q: How many words does the module require for PLC addressing?
A: The module requires 6 memory words in the rack addressing table.
Q: What is the isolation rating between channel groups?
A: Channel groups withstand up to 500 Vrms dielectric isolation for 1 minute.
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