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- Schneider
- 140DAI54000
- Discrete Input Module
- France
- 103.9 × 40.3 × 250 mm
- 0.31 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Schneider Electric 140DAI54000 is a 16-channel AC discrete input module used in the Modicon Quantum PLC platform. It is designed to read 115 V AC digital field signals and convert them into processed input data for industrial automation and control systems.
This module is typically used in large-scale PLC architectures where reliable, electrically isolated digital signal acquisition is required.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Schneider Electric |
| Series | Modicon Quantum |
| Model | 140DAI54000 |
| Product Type | Discrete Input Module |
| Input Channels | 16 |
| Input Voltage | 115 V AC |
| Signal Type | Digital / Discrete input |
| Mounting Type | Backplane / Rack-mounted |
| Dimensions | 103.9 × 40.3 × 250 mm |
| Weight | 0.31 kg |
| Operating Temperature | 0–60 °C |
| Isolation | Channel-to-bus isolation (industrial grade) |
Function and Working Principle
The 140DAI54000 is used to detect ON/OFF state signals from field devices such as:
- Push buttons
- Limit switches
- Proximity sensors (AC type)
- Relay contacts
Working Principle
- Field device applies 115 V AC signal
- Input channel detects voltage presence
- Signal is filtered and isolated internally
- PLC reads status as logic 1 (ON) or 0 (OFF)
Signal Flow
Field Device → Input Terminal → Isolation Circuit → PLC Backplane → Control Logic
Role in PLC System
Within a Modicon Quantum system, this module serves as a digital signal acquisition interface between field wiring and PLC CPU.
It is commonly used in:
- Large industrial automation systems
- Process control systems
- Power plant auxiliary systems
- Oil & gas control panels
- Manufacturing line automation
Industrial Applications
- Motor control status monitoring
- Safety interlock systems
- Pump and valve position feedback
- Machine start/stop signals
- Alarm and fault signal acquisition
- Utility and infrastructure control systems
Installation Notes
- Installed in Quantum PLC rack backplane
- Requires compatible 115 V AC field wiring
- Each channel must be properly isolated and grounded
- Field wiring must follow industrial safety standards
- Avoid mixing AC input types with incompatible sensors
Compatible System Components
- Modicon Quantum CPU modules
- Quantum rack backplane systems
- Discrete output modules (DO series)
- Analog input/output modules
- Remote I/O expansion systems
- Schneider Unity Pro / EcoStruxure control software
Alternative / Related Modules
- 140DDI series (DC digital inputs)
- 140DAI54000 (other AC input variants in same family)
- 140DDO series (digital outputs)
- Modicon M340 / M580 digital input modules
Key Advantages
- 16-channel high-density input design
- Electrical isolation for industrial safety
- Stable 115 V AC signal detection
- Compatible with Modicon Quantum architecture
- Reliable operation in harsh industrial environments
- Easy integration into PLC backplane systems
FAQ
Q: What type of signals does it read?
It reads 115 V AC ON/OFF discrete signals.
Q: Is it analog or digital?
It is a digital (discrete) input module.
Q: What PLC system uses it?
It is used in Schneider Modicon Quantum PLC systems.
Conclusion
The Schneider 140DAI54000 Discrete Input Module is a robust industrial PLC input module designed for reliable acquisition of 115 V AC digital signals. It is widely used in large-scale automation systems where stable and isolated signal monitoring is required.