The Schneider Electric 140DSI35300C is a Low Voltage Discrete Input Module designed for the Modicon Quantum automation platform. This module features 32 isolated digital input channels that are optimized for detecting low voltage logic signals, specifically 5V DC and 15V DC levels. It is ideal for high-density signal acquisition in control systems where low-voltage signaling is critical, such as semiconductor tools, machine automation, and advanced manufacturing equipment.

The module interfaces directly with low-voltage devices and sensors while maintaining robust isolation and fast input detection capabilities. Integrated seamlessly into Quantum I/O racks, it provides reliable performance, system diagnostics, and high-speed digital state monitoring.

Product Specifications

Applications

The 140DSI35300C is designed for use in industries and systems requiring precise detection of low-voltage digital signals. Common application areas include:

• Semiconductor Manufacturing Equipment: Interfacing with low-voltage signal feedback and cleanroom-safe sensors.

• Automated Test Systems (ATE): Capturing test pass/fail outputs from low-voltage circuits or microcontrollers.

• Machine Automation: Accepting status signals from logic-level PLCs, sensors, and push-button arrays.

• Packaging Machinery: Monitoring status from low-voltage proximity switches and photodetectors.

• Laboratory Equipment: Collecting signal states from microfluidic devices, actuators, and low-power relays.

• Automotive Assembly Lines: Detecting logic signals in control panels or diagnostic outputs.

Product Advantages

• Low-Voltage Compatibility: Designed specifically to support 5 V and 15 V DC logic signals common in embedded and compact systems.

• High Channel Density: 32 input channels in a single-slot module increase I/O capacity without expanding rack space.

• Fast Response Time: Sub-millisecond detection enables near real-time control feedback.

• Visual Diagnostics: Per-channel LEDs allow quick fault identification and signal state monitoring.

• Input Flexibility: Supports mixed input voltage levels with group configuration.

• Robust Isolation: Electrical separation protects the backplane from signal transients and ground loops.

• Seamless Integration: Fully compatible with Modicon Quantum CPUs and Schneider software tools like Unity Pro or EcoStruxure Control Expert.

Frequently Asked Questions (FAQ)

1. What voltage levels can the 140DSI35300C detect?

It is designed to detect low-level logic signals, specifically 5 V DC and 15 V DC input voltages.

2. How many inputs does this module support?

The module provides 32 discrete digital input channels, grouped in 4 banks of 8.

3. Are the input groups configurable?

Yes, each group of 8 channels can be independently configured to accept either 5 V or 15 V logic levels.

4. Is this module suitable for industrial sensors?

It is optimized for low-voltage logic signals. For industrial 24 V sensors, other modules like 140DDI35300 may be more appropriate.

5. What’s the input signal type—sinking or sourcing?

The module accepts sinking inputs (common positive logic), meaning the connected device must source current.

6. Can this module be mixed with standard voltage input modules in the same rack?

Yes, it can coexist with other discrete or analog modules in the same Quantum I/O backplane.

7. What software is required to configure the module?

Use Unity Pro or EcoStruxure Control Expert for I/O mapping and system diagnostics.

8. Is there a fuse or protection for the input channels?

While each channel is electrically isolated, external fusing may be recommended depending on your system safety requirements.

9. Can I monitor input status visually on the module?

Yes, each input channel has a corresponding LED to indicate ON/OFF status.

10. Does this module support hot-swapping?

Yes, it supports hot-swapping within the Quantum rack system, provided the system is designed for it.