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- Schneider
- 140DDI15310
- Discrete Input Module
- France
- 103.9 × 40.3 × 250 mm
- 0.45 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Schneider Electric 140DDI15310 is a Modicon Quantum high-density discrete input module designed for industrial PLC systems. It is used to acquire low-voltage 5 V DC TTL digital signals from field devices and transmit them to the PLC backplane for control processing.
This module is part of the Modicon Quantum automation platform, commonly used in large-scale industrial control and process automation systems.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Schneider Electric |
| Series | Modicon Quantum |
| Model | 140DDI15310 |
| Product Type | Discrete Input Module |
| Input Channels | 32 |
| Input Type | DC TTL digital input |
| Input Voltage | 5 V DC (4.5–5.5 V range) |
| Logic Type | Negative (sink/source configuration) |
| Channel Grouping | 4 groups of 8 inputs |
| Mounting Type | Quantum rack backplane |
| Dimensions | 103.9 × 40.3 × 250 mm |
| Weight | 0.45 kg |
| Operating Temperature | 0–60 °C |
| Isolation | Channel/group-to-bus isolation |
Function and Working Principle
The 140DDI15310 is designed to detect ON/OFF digital states from low-voltage field devices.
Typical signal sources include:
- Proximity sensors
- Photoelectric sensors
- Limit switches
- Push buttons
- Digital logic devices (5 V TTL systems)
Working Principle
- Field device outputs 5 V DC signal
- Module detects voltage state per channel
- Internal isolation circuitry processes and filters signal
- PLC reads logic state as ON/OFF (1/0)
Signal Flow
Field Device → Input Channel → Isolation Circuit → Backplane → PLC CPU → Control Logic
Role in PLC System
Within the Modicon Quantum architecture, this module functions as a high-density digital input interface, enabling:
- Large-scale signal monitoring
- Compact cabinet design
- Fast status acquisition
- Reliable electrical isolation
It is typically used in systems requiring high channel density and fast digital feedback.
Industrial Applications
- Machine status monitoring
- Production line automation
- Motor control feedback systems
- Safety interlock signal collection
- Alarm and event monitoring systems
- Process control systems
- Utility and infrastructure automation
Installation Notes
- Installed in Quantum PLC rack backplane
- Requires 5 V DC TTL-compatible field signals
- Proper grounding and shielding recommended
- Channels are grouped; wiring must follow group structure
- Avoid voltage levels outside specified input range
Compatible System Components
- Modicon Quantum CPU modules
- Quantum rack backplane systems
- Digital output modules (DDO series)
- Analog I/O modules
- Remote I/O expansion racks
- EcoStruxure / Unity Pro control software
Alternative / Related Modules
- 140DDI54000 (115 V AC input variant)
- 140DDI54300 (related AC input version)
- 140DDI35300 / 35310 (24 V DC variants)
- 140DDI84100 / 67300 (higher voltage DC inputs)
- Modicon M340 / M580 I/O modules
Key Advantages
- High-density 32-channel design
- Fast and reliable TTL signal acquisition
- Strong electrical isolation
- Compact Quantum backplane integration
- Suitable for large industrial systems
- Stable operation in harsh environments
FAQ
Q: What type of signal does it read?
It reads 5 V DC TTL digital input signals.
Q: Is it AC or DC?
It is a low-voltage DC (TTL) discrete input module.
Q: How many channels does it support?
It supports 32 input channels.
Conclusion
The Schneider 140DDI15310 Discrete Input Module is a high-density PLC input module designed for reliable acquisition of 5 V TTL digital signals. It is widely used in large-scale industrial automation systems requiring compact, fast, and electrically isolated signal processing.